A tax debt is not created by a demand letter, a final notice or even an assessment. It is created by operation of law. The moment the statutory charging provision attaches to a taxable event — taxable income received by or accrued to a person during a year of assessment under Section 6 of the Income Tax Act [Chapter 23:06], or a taxable supply made by a registered operator under Section 6(1) of the VAT Act [Chapter 23:12] — an obligation to the State comes into existence. Everything that follows — returns, self-assessment, Commissioner assessments, due dates, interest, penalties, garnishees and writs — is machinery for quantifying, arming and collecting a debt whose legal root already exists. This lesson dissects that creation process: the precise legal moment a tax debt is born, the distinct moment it becomes payable, and the calendar of statutory due dates that converts a latent liability into an enforceable arrear.

The analytical spine of the lesson is the three-moment model established in the lesson on Identification and Classification of Tax Debt: (1) the charge creates the debt (ITA Section 6; VAT Act Section 6); (2) quantification fixes its amount — by the taxpayer's own self-assessment return under Section 37A (which is deemed an assessment by Section 37A(10)–(11)), or by the Commissioner under Sections 45 (estimated), 46 (additional tax), 47 (additional assessments) and 51 (notice of assessment), or, for VAT, by the operator's own calculation under Section 28(1)(b) and the Commissioner's Section 31 assessment powers; and (3) the due date arms the debt — Section 71(1) for income tax generally, Section 72 for quarterly provisional tax (QPDs of 10% / 25% / 30% / 35% on 25 March, 25 June, 25 September and 20 December), Section 73 read with paragraph 3 of the Thirteenth Schedule for PAYE (remit by the 10th of the following month), and Section 28(1) of the VAT Act for VAT (now the 15th day of the month following the tax period).

Two recent amendments reshape the due-date landscape and feature throughout. First, the Finance (No. 2) Act 7 of 2024, with effect from 1 January 2025, shortened the VAT return-and-payment deadline in VAT Act Section 28(1) from the 25th day to the 15th day of the first month after the tax period — a ten-day acceleration of the State's cash-flow that catches out any operator still diarising the old date (the Zimbabwe Tax Compliance Calendar in circulation still shows the 25th; the legislation prevails). Second, the same Act tightened Section 4B of the Finance Act [Chapter 23:04] so that a financial intermediary must credit the Consolidated Revenue Fund within 24 hours (down from 48) of receiving a taxpayer's payment, on pain of interest of 15% (USD amounts) or bank policy rate plus 5% (local currency) — with the crucial corollary that the taxpayer who has paid the intermediary in time has discharged the debt even if the intermediary delays.

The most consequential doctrinal point in this lesson is the self-assessment fusion in Section 37A(10)–(11): once a specified taxpayer furnishes a self-assessment return, the taxpayer "is deemed to have made an assessment" and the return "is treated as an assessment served on the taxpayer by the Commissioner-General on the due date for the furnishing of the return or on the actual date of furnishing the return, whichever is the later". The taxpayer therefore creates, quantifies and arms its own debt in a single act of filing — there is no waiting for ZIMRA. The four-month filing window (Section 37A(1), as substituted by Finance (No. 2) Act 10 of 2022 with effect from the year of assessment beginning 1 January 2023) makes 30 April the standard creation date of the annual balance for 31-December year-ends.

Equally important is what creation does not require. Registration is irrelevant: Section 25D confirms liability exists whether or not the taxpayer ever registered. Assessment is not constitutive: Sections 45–47 let the Commissioner estimate, agree or re-open precisely because the underlying debt already exists; Paperhole Investments 24-HH-149 reminds us that an assessment which charges the wrong base (gross instead of taxable income) is invalid — the instrument failed, not the charge. And payment timing is severable from filing timing: Section 37A(4) permits extension of the return "subject to section seventy-one" — extending the paperwork does not, without more, extend the money.

For practitioners, the operational outputs of this lesson are: a complete due-date catalogue for every recurring obligation (PAYE and the REV 5 withholding family on the 10th; QPDs on 25 March/June/September and 20 December; VAT 7 on the 15th; the ITF 12C and final balance four months after year-end; special VAT returns within 30 days); the interest ignition rules (ITA Section 71(2)–(3), rate fixed by statutory instrument — SI 212 of 2022, rate to be verified; VAT Fifth Schedule as substituted by SI 25 of 2025: bank policy rate +5% local / 10% foreign currency); the currency-of-debt rules (ITA Section 37AA separate returns with the United States dollar as currency of account; VAT Section 38(4)–(4a) pay-in-the-currency-you-received); and the estimation discipline of Section 72 (Commissioner's estimates "final and conclusive", deficits deemed unpaid provisional tax, and the 10% underestimation tolerance in Section 72(11)(b)).

Every later stage of tax debt management — payment plans, garnishees, attachment, write-offs, insolvency ranking — presupposes that a debt exists, that it has a quantum, and that it is due. Those are three different legal facts, created by three different families of provisions, often on three different dates. Practitioners who blur them make predictable, expensive mistakes: they treat the absence of an assessment as the absence of a debt; they treat the issue of an assessment as the start of interest; they treat an extension of time to file as an extension of time to pay. This lesson exists to make those three facts — and their dates — impossible to confuse.

Begin with first principles. A debt in general law is an obligation to pay a sum of money, owed by a debtor to a creditor, enforceable by action. A tax debt is such an obligation owed to the State, but with a defining peculiarity: it is created not by contract or delict but by statute operating on facts. No consent is required and none is relevant. When the facts described in a charging provision occur — income accrues, a supply is made, remuneration is paid — the statute itself raises the obligation. As the lesson on Identification and Classification of Tax Debt established, ITA Section 77(1) then characterises any tax "due and payable" as "a debt due to the State", recoverable by court action; and the lesson on Taxpayer Account Management showed how the TaRMS Single Account ledger is the administrative shadow of these rules. What neither lesson did — and this one does — is walk, provision by provision, the machinery that takes a taxpayer from taxable event to enforceable arrear.

The three-moment model, restated precisely:

1. The charge (creation). ITA Section 6 and VAT Act Section 6 impose the tax. From the moment the charging facts exist, the taxpayer is under a statutory obligation. The obligation may be unquantified and not yet payable, but it exists — which is why later quantification can reach back (Section 47 additional assessments), why registration status is irrelevant (Section 25D), and why fleeing the paperwork never extinguishes the substance.
2. Quantification (liquidation of the debt). A debt must be a sum certain before it can be enforced. The Act liquidates the obligation either through the taxpayer's own return — which, for specified taxpayers, is the assessment (Section 37A(10)–(11)) — or through the Commissioner's assessment powers (Sections 45, 46, 47, 51; VAT Section 31).
3. The due date (arming). Section 71(1) and its satellite provisions fix the date on or before which the quantified amount must be paid. The day after that date, the debt is in arrear: interest begins to run automatically under Section 71(2)–(3) and the recovery provisions studied in the lessons on Attachment, Disputes and Special Situations become available.

Why does the order matter? Because the moments can occur in any sequence in practice. PAYE is quantified (by the deduction tables) and armed (10th of the following month) virtually simultaneously with the charge (payment of remuneration). Provisional tax is armed before final quantification — the QPD dates fall during the very year whose tax is still being earned, on estimates. The annual balance is quantified and armed together on filing (Section 37A(11)). And a Section 47 additional assessment quantifies — years later — a debt that was created in the original year of assessment. A practitioner who can place any amount on this map can immediately answer the three questions that decide every debt file: Does the debt exist? How much is it? Since when has it been due?

This lesson sits tenth in the Tax Debt Management course. It deepens the creation moment sketched in Identification and Classification of Tax Debt, supplies the statutory calendar that the Taxpayer Account Management lesson's ledger entries presuppose, and prepares the ground for the lessons that follow on civil recovery, assessments and interest calculation. On the income tax side it draws directly on the foundations laid in the Income Tax Course: the charge and calculation architecture (Section 6–Section 7, itcfoundations), the administration life-cycle (itcadministration) and the gross-income timing rules (itcgrossincome — an amount "received by or accrued to" marks the charge attaching). ZIMRA audit interest in this area is intense for a simple reason: due dates are objective, system-verifiable facts, and TaRMS flags every missed one automatically.

This section walks the governing provisions in the order of the three moments. Every section number below was confirmed against the consolidated Acts as at 27 May 2025 in the source folder.

B.1 The charging provisions — creation of the obligation

Income Tax Act [Chapter 23:06], Section 6 (Levy of income tax):

"There shall be charged, levied and collected throughout Zimbabwe for the benefit of the Consolidated Revenue Fund an income tax in respect of the taxable income, as defined in this Part, received by or accrued to or in favour of any person during the year of assessment…"

Unpack the elements. "Shall be charged, levied and collected" is imperative and self-executing — Parliament, not ZIMRA, imposes the tax; ZIMRA merely administers it (the Zimplats v ZIMRA 22-HH-845 annotation sits against this section in the source Act). "For the benefit of the Consolidated Revenue Fund" identifies the creditor: the State, not the Authority — which is why Section 77(1) speaks of a "debt due to the State". "In respect of the taxable income" identifies the base: not gross income, not income, but taxable income as the funnel in itcfoundations defines it — and an assessment that charges the wrong base is invalid (Paperhole Investments 24-HH-149, where gross was taxed instead of taxable income). "Received by or accrued to or in favour of any person" imports the timing doctrine of gross income: the charge attaches as amounts are received or accrue, item by item, through the year. "During the year of assessment" supplies the periodicity: liability crystallises in respect of a defined twelve-month period (1 January to 31 December since Act 17/1997), so that the final quantum is knowable only when the year closes — a structural fact that explains why provisional tax operates on estimates.

Section 7 (Calculation of income tax) completes the charge: the tax chargeable "shall … be calculated in accordance with the charging Act" by reference to (a) the taxable income of the year, (b) the rates fixed by the charging Act for that year, and (c) the credits under the charging Act. The "charging Act" is the annual Finance Act [Chapter 23:04] (Section 2 definition), which is why no debt can be computed without reading the Finance Act for the relevant year — rates are period-specific. (Gonese I v Minister of Finance 22-HH-265 is annotated against Section 7: rate-setting belongs to Parliament.)

VAT Act [Chapter 23:12], Section 6(1): "Subject to this Act, there shall be charged, levied and collected, for the benefit of the Consolidated Revenue Fund a tax at such rate as may be fixed by the Charging Act on the value of — (a) the supply by any registered operator of goods or services supplied by him … in the course or furtherance of any trade carried on by him … (b) the importation of any goods into Zimbabwe by any person … and (c) the supply of any imported services by any person…". The same architecture: imperative charge, Consolidated Revenue Fund creditor, rate delegated to the Finance Act. Delta Beverages (Pvt) Ltd v ZIMRA 23-HH-577 (annotated at Section 6) emphasised it is "just 'a tax'" on the value of the supply — one tax, whatever currency questions later arise.

For VAT, the charge attaches supply by supply, and Section 8(1) (as substituted by Finance Act 1 of 2019 w.e.f. 1 January 2019) fixes the time of supply as the earliest of: (a) the issue of an invoice by supplier or recipient; (b) receipt of any payment of consideration; (c) removal of movable goods from the place of sale; (d) the recipient taking possession of immovable goods; (e) performance of a service. The time of supply allocates the output tax to a tax period (Section 27), and the debt for that period is the Section 15 net calculation (output tax minus allowable input tax). Time of supply is therefore VAT's creation clock: invoice early, and the debt is born early.

Two framing provisions confirm that creation is independent of administration. ITA Section 25D (Part IIIA, inserted by Finance (No. 2) Act 10 of 2022): liability to tax exists whether or not the person registered as a taxpayer — non-registration avoids nothing. And the VAT Act's Section 26 (studied in the deregistration lessons) preserves liabilities despite deregistration. The charge looks at facts, not files.

B.2 The quantification provisions — liquidating the debt

Section 37 (Notice by Commissioner requiring returns). Subject to Section 37A, the Commissioner "shall annually give public notice" requiring persons within prescribed classifications to furnish returns within 30 days after the date of the notice (Section 37(1)). The proviso (inserted by Finance (No. 3) Act 11 of 2014, w.e.f. the year of assessment beginning 1 January 2015) shields a dormant company from penalty for not filing — but only if its public officer, a director or a majority shareholder makes a written and sworn declaration of dormancy within 30 days of the notice. Subsections (5)–(7) make the return evidentially binding: it must be signed by the taxpayer or duly authorised agent; the signatory is "deemed … cognizant of all statements made therein"; and a return purporting to be made on a person's behalf is deemed duly made unless that person proves otherwise. Subsection (12) excuses employees whose taxable income is solely remuneration fully taxed under a paragraph 20A (Thirteenth Schedule) final-deduction directive. Subsection (13) allows accounts made up to a date other than 31 December to be accepted, with consequential adjustments; subsection (15) (noted in earlier lessons) requires a joint partnership return while Section 51(5) requires separate assessments upon partners.

Section 37A (Self-assessment) — inserted by Act 12 of 2006 from 1 January 2007; subsection (1) substituted by Finance (No. 2) Act 10 of 2022 w.e.f. the year of assessment beginning 1 January 2023 — is the centrepiece. Clause by clause:

• Section 37A(1): every "specified taxpayer" (a taxpayer or class designated by the Commissioner-General by published notice) shall, not later than 4 months after the end of the tax year (or four months after an approved alternative accounting date under Section 37(13)), (a) furnish a self-assessment return in the prescribed form (the ITF 12C), and (b) calculate the tax itself under Section 7(2) and pay the tax payable — or compute its refund. Note the conjunction: filing and paying are limbs of one obligation.
• Section 37A(2): the return is due "whether or not tax is payable or a refund is due" — nil years do not excuse filing.
• Section 37A(3): the Commissioner-General may by written notice require an interim self-assessment return for any designated period.
• Section 37A(4): the Commissioner-General may extend the time for furnishing the return or paying the tax, "but subject to section seventy-one" — the extension power does not override the due-date-and-interest machinery; an extension of filing is not an automatic extension of payment, and interest relief requires the Section 71(2) proviso route.
• Section 37A(5)–(6): the return must be signed with a declaration of completeness and accuracy; the signatory is deemed cognizant of its contents; a return purporting to be signed on a person's behalf is deemed theirs unless disproved.
• Section 37A(7): on failure, the Commissioner-General may appoint a person to make the return on the taxpayer's behalf — and that return is treated as the taxpayer's for all purposes.
• Section 37A(8): no return is needed from a specified taxpayer whose taxable income is solely remuneration fully taxed under a paragraph 20A directive (mirroring Section 37(12)).
• Section 37A(9): a legally incapacitated taxpayer's return is signed by the legal representative.
• Section 37A(10): on furnishing the return with relevant documents, "the taxpayer is deemed to have made an assessment of his or her taxable income and the tax payable … being those respective amounts shown in the return" (IAB Company v ZIMRA 22-HH-032 annotated here).
• Section 37A(11): the return "is treated as an assessment served on the taxpayer by the Commissioner-General on the due date for the furnishing of the return or on the actual date of furnishing the return, whichever is the later". The source Act's annotations collect the case line: CF (Pvt) Ltd v ZIMRA 18-HH-099, DNS (Pvt) Ltd v ZIMRA 19-HH-722, TL v ZIMRA 20-HH-413, and Nestlé Zimbabwe (Pvt) Ltd v ZIMRA 20-SC-290 and 23-HH-312 — the deeming operates if the return complies with the law.
• Section 37A(12)–(13): the Commissioner-General retains the power to assess under Sections 46 and 47 "in any case in which [he] considers necessary", but must then include a statement of reasons with the assessment.

Section 37AA (inserted by Finance Act 8 of 2022, w.e.f. 1 January 2022) splits quantification by currency: a taxpayer earning any part of trade or investment income in foreign currency must render a separate return for that income, with the United States dollar as the currency of account (other foreign currencies converted at the international cross rate on the date of the return). The Commissioner assesses tax proportionately in each currency (Section 37AA(2)); QPD payers convert at the average auction rate for the quarter, others make a binding election between the year's average auction rate and the transaction-date spot rate; deductions are apportioned proportionately (Section 37AA(3)); and Section 37A applies to each separate return as to a single return (Section 37AA(4)) — so each currency stream generates its own deemed assessment and its own debt. As the Taxpayer Account Management lesson stressed, the currencies are never netted.

Section 45 (Estimated assessments). Where a taxpayer defaults in furnishing a return or information, or the Commissioner is not satisfied with what was furnished, or believes the taxpayer is about to leave Zimbabwe, the Commissioner may estimate taxable income (wholly or partly), give notice, and the taxpayer "shall be liable to pay the tax upon the same". Section 45(2) permits an agreed assessment where a person cannot furnish an accurate return — and the agreed amount is not subject to objection and appeal (with a proviso allowing the Commissioner to revisit it, subject to Section 47, where information was withheld). The agreement power is personal to the Commissioner and cannot be delegated to junior officers (PPC v ZIMRA 19-HH-755, annotated at Section 45(2)).

Section 46 (Additional tax in event of default or omission) creates a new, penal component of the debt at the moment of quantification. Under Section 46(1)(a), default in rendering a return attracts additional tax of the greater of (i) an amount equal to the tax chargeable for the year (i.e. 100%) or (ii) the maximum level-seven fine under Section 81(1) for failing to submit a return. Paragraphs (b)–(f) attach tax-difference amounts to omissions, incorrect statements, non-disclosures and over-claimed credits. Section 46(1a) doubles the exposure (2×) for repeat defaulters. The paragraphs are disjunctive (PL Mines (Pvt) Ltd v ZIMRA 15-HH-466). Remission and the Section 46(6)–(7) machinery were covered in Taxpayer Engagement & Compliance; what matters here is that the additional tax becomes part of the same debt, assessed and recoverable like the principal.

Section 47 (Additional assessments) lets the Commissioner adjust any assessment where taxable income escaped charge, an assessed loss was overstated, or a credit was wrongly granted — proving that the original debt always existed at its true amount. Two provisos protect repose: (i) no adjustment where the original assessment followed the practice generally prevailing at the time; (ii) no adjustment after 6 years from the end of the relevant year of assessment, unless fraud, misrepresentation or wilful non-disclosure is established, in which case the call may be made at any time (CF 18-HH-099; Deb (Pvt) Ltd v ZIMRA 19-HH-664 — prescription stayed by misrepresentation; Man Ltd v ZIMRA 20-HH-078 — "wilful").

Section 51 (Assessments and recording thereof). Notice of assessment and of the tax payable "shall be given to the taxpayer assessed" (Section 51(2)) — service of a lawful notice is what perfects a Commissioner-made quantification (Nestlé, annotated here: provided it complies with the law). The notice must alert the taxpayer to the 30-day objection window (Section 51(3); Barclays Bank of Zimbabwe v ZIMRA 04-HH-162). Copies are filed (Section 51(4)) and separate assessments are made upon partners (Section 51(5)).

On the VAT side, quantification is continuous: Section 15 computes the tax payable for each tax period, Section 28(1)(b) obliges the operator to "calculate the amounts of such tax … and pay the tax payable" — VAT has been a self-assessed tax from inception — and Section 31 gives the Commissioner assessment powers for defaults and deemed cases. Section 27 defines the periods: Category A (two-month periods ending January/March/May/July/September/November), Category B (two-month periods ending February/April/June/August/October/December), Category C (monthly — generally larger operators), Category D (approved special periods).

B.3 The arming provisions — due dates and the start of arrears

Section 71(1): "Tax shall become due and payable on such date and shall be paid on or before such days and at such places as are fixed or prescribed by or under this Act or, where no such time or place is so fixed or prescribed, as may be notified by the Commissioner, and may be paid in 1 sum or in instalments of equal or varying amounts as may be determined by the Commissioner, having regard to the circumstances of the case". This is the master arming clause — and, as the Taxpayer Account Management lesson showed, the statutory home of payment plans (Mayor Logistics (Pvt) Ltd v ZIMRA 14-CC-007).

Section 71(2): if tax is not paid by the fixed day, interest "calculated at a rate to be fixed by the Minister, by statutory instrument, shall be payable" on so much as remains unpaid, from the specified payment date until payment in full — automatic, continuous, and tied to the due date, not to any demand (Man Ltd v ZIMRA 20-HH-078). The applicable instrument is the Income Tax (Rate of Interest) Notice 2022, SI 212 of 2022 (gazetted 19 December 2022, backdated to 1 December 2022).

The proviso allows the Commissioner, "in special circumstances", to extend the time for payment without charging interest (MR Bank Ltd v ZIMRA 19-HH-779) — the only true interest-free door.

Section 71(3) declares, for the avoidance of doubt, that withheld taxes under the Ninth, Thirteenth, Fifteenth, Sixteenth, Seventeenth or Eighteenth Schedules attract the same SI-fixed interest from "the day next following the last day provided in the Schedule concerned for its payment". Withholding debts arm on their own schedule deadlines.

Section 72 (Payment of provisional tax) arms income tax during the year of charge. Key definitions in Section 72(1): "provisional tax" is the taxpayer's estimate of the year's tax excluding PAYE-covered amounts; a "quarterly payment date" (QPD) is the fixed instalment day. Section 72(2): a person whose taxable income includes amounts not subject to PAYE "shall pay provisional tax on that amount in 4 quarterly instalments" (Redan Petroleum (Pvt) Ltd v ZIMRA 23-HH-637 — payment is not to be bundled at year-end). Section 72(3) requires an estimate of total taxable income with each payment period's return (the ITF 12B); Section 72(4)–(5): if the taxpayer fails to estimate, the Commissioner-General may estimate — and his estimate, or his increase of an unsatisfactory estimate, is "final and conclusive" (the discretion is objectionable, Section 72(6)). Section 72(7) fixes the instalments:

(The paragraphs are lettered (a), (b), (c) and — by a drafting quirk — (e); a proviso inserted by Finance (No. 2) Act 10 of 2022 adjusts the dates for approved non-December accounting dates.) Section 72(8) directs post-determination set-off: provisional credits are applied "successively" to the year's tax, then to any other tax or amount due, and only the residue refunded. Section 72(9)–(10): unpaid or short-paid instalments are treated as provisional tax remaining unpaid, triggering Section 71(2) interest — a deficit against the prescribed percentage of the tax actually due is deemed unpaid provisional tax. Section 72(11): the Commissioner-General may waive Section 71(2) interest where the taxpayer was prevented by special circumstances (SZ (Pvt) Ltd v ZIMRA 20-HH-142) or underestimated by not more than 10%, or through a rate increase or other sufficient cause. Section 72(13)(a) excludes persons below a Minister-prescribed taxable-income threshold; Section 72(13)(b) lets the Commissioner-General fix different dates; and Section 72(14) (Finance Act 2 of 2017, w.e.f. 23 March 2017) lets a qualifying SME elect monthly provisional payments.

Section 73 and the Thirteenth Schedule (PAYE). Employees' tax is payable per the Thirteenth Schedule (Section 73(1)–(2)); late payment attracts SI-fixed interest unless the Commissioner directs otherwise (Section 73(3)). Paragraph 3(1) of the Schedule is the operative clock: every employer who pays or becomes liable to pay remuneration shall withhold employees' tax per the deduction tables and shall pay the amount so withheld to the Commissioner on the 10th day of the month following (the Commissioner may allow up to 7 further days for good cause) — and a person who ceases to be an employer mid-month must remit on the following day after cessation. The PAYE debt in the employer's hands is thus created at payroll, quantified by the tables, and armed nine to ten days after month-end — the fastest-arming debt in the system, and (as the insolvency lessons showed) one with special trust-like priority.

VAT due dates. Section 28(1): every registered operator shall, "within the period ending on the 15th day of the first month commencing after the end of a tax period …" furnish the VAT 7 return and pay the tax (or compute the refund). The editorial history in the source Act records the deadline's journey — 5 days (2009), 10 (2010), 20 (2011), the 25th (Finance (No. 2) Act 9 of 2011, w.e.f. 1 January 2012) — and finally the shortening from the 25th to the 15th by Section 33 of the Finance (No. 2) Act 7 of 2024, w.e.f. 1 January 2025. (Where the tax period ends mid-month — possible in Category D — the deadline is the last day of that month.) Section 28(2) requires the return "whether or not tax is payable or a refund is due" (ZIMRA v Packers International (Pvt) Ltd 16-SC-028 — nil returns are obligatory). Section 28(3) permits extension "subject to section thirty-eight". Section 29 (special returns): a seller of goods deemed supplied under Section 7(1) must return and pay within 30 days of the sale. Section 30(2) (inserted by Finance (No. 2) Act 7 of 2024, w.e.f. 1 January 2025) obliges procuring entities to file tender-award returns by the 10th day after each month. Section 38(1): the tax "shall be paid in full within the time allowed by section thirteen or section twenty-eight or section twenty-nine" — Section 13 governing importations (VAT collected through customs machinery at entry). Section 38(2)–(3) allows an estimated deposit where exact calculation is impossible, treated as a provisional payment. Section 38(4)–(4a) (Finance Act 1 of 2019; further amended by Finance Act 8 of 2022 with retrospective effect to 22 February 2019): an operator who receives payment in foreign currency must pay the tax in foreign currency (Delta Beverages 23-HH-577; Inamo Investments (Pvt) Ltd v ZIMRA 23-SC-096; Prosperous Days Investments v ZIMRA 21-HH-024) — the currency of the debt follows the currency of the consideration.

Finance Act Section 4B (Prompt remittance through financial intermediaries) — inserted by Finance (No. 2) Act 10 of 2022; tightened by Act 7 of 2024 w.e.f. the year of assessment beginning 1 January 2025. A taxpayer may pay any revenue-Act amount through an approved financial intermediary (a Banking Act institution holding a Commissioner-General account); the intermediary "must remit the full amount … so that no later than 24 hours from the time of such payment the Consolidated Revenue Fund is credited" (shortened from 48 hours); an intermediary that delays without valid reason pays interest of 15% (USD) or bank policy rate + 5% (local currency) on the unremitted amount. The structural point for debt creation: once the taxpayer pays the approved intermediary in time, the intermediary — not the taxpayer — owes the State; the taxpayer's debt is discharged.

The Compliance Calendar cross-check. The Zimbabwe Tax Compliance Calendar in the source folder confirms the monthly rhythm — PAYE (Form P2), the combined withholding REV 5, IMTT (REV 5B), presumptive (REV 5A), mining royalties (REV 5C), specified-minerals levy, presumptive rental and digital-services WHT all by the 10th of the following month; QPDs (ITF 12B) on 25 March / 25 June / 25 September / 20 December; the annual ITF 12C self-assessment and the final balance of income tax by 30 April for 31-December year-ends; and the ITF 263 renewal window opening 1 October. Two caveats, both resolved in favour of the statute (as the calendar itself directs: "Where this calendar and the legislation appear to conflict, the legislation prevails"): the calendar still shows VAT 7 on the 25th, which the amended Section 28(1) has moved to the 15th w.e.f. 1 January 2025; and the calendar's "cumulative target" labels on the 2nd and 3rd QPDs (25% and 55%) do not match Section 72(7), under which the instalments are 10%, 25%, 30% and 35% of the estimated annual tax respectively (cumulatively 10% → 35% → 65% → 100%).

C.1 Liability versus exigibility — the two lives of a tax debt

Every tax debt lives two lives. In its first life it is a liability: an obligation that exists in law because the charging facts have occurred, but which may be neither precisely quantified nor yet payable. In its second life it is exigible: quantified, due, and enforceable — the State can demand it, charge interest on it and execute for it. The transition between the two lives is exactly what Sections 37A, 45–47, 51, 71–73 and VAT Sections 15, 27–31 and 38 manage.

Why does the law split the debt's life this way? Three design reasons. First, measurement: income tax is an annual tax on a net base (taxable income), which cannot be finally measured until the year of assessment closes and deductions are tallied; the charge must therefore attach before the amount can be known. Second, administration: a self-assessment system (Section 37A; VAT Section 28(1)(b)) deliberately makes the taxpayer the primary quantifier, with the Commissioner's powers (Sections 45–47; VAT Section 31) held in reserve as correction tools; the law must therefore make the taxpayer's own act capable of liquidating the debt — hence the deeming in Section 37A(10)–(11). Third, cash-flow: the State cannot wait sixteen months (year of charge plus four-month filing window) for its money, so the arming provisions pull payment forward — QPDs during the year for business income, monthly withholding at source for remuneration, and per-period payment for VAT.

The practical consequence of the two-lives doctrine: an assessment is declaratory, not constitutive. The Commissioner's Section 47 power to reach back six years (or indefinitely on fraud, misrepresentation or wilful non-disclosure) only makes sense because the true debt existed all along; the additional assessment discovers it, it does not invent it. Conversely, an invalid assessment (wrong base, wrong party, ultra vires process) destroys exigibility but not liability — ZIMRA can assess again, properly (Paperhole 24-HH-149; MGZ v ZIMRA 21-HH-269 in the Disputes lesson — wrong party fatal to the instrument).

C.2 The income tax creation timeline, hour by hour

Take a company with a 31 December 2025 year-end and walk the year:

1. During 2025 — the charge attaches continuously. Each amount received or accrued (Section 8(1) gross income, itcgrossincome) feeds a liability that will be finally measured only at year-end. The company is already a debtor in the first-life sense.
2. 25 March / 25 June / 25 September / 20 December 2025 — the QPDs arm slices of the estimated debt (10%, 25%, 30%, 35% of estimated annual tax). Each instalment is, from its QPD, a due debt: a shortfall is "deemed to be an amount of provisional tax remaining unpaid" (Section 72(10)) and bears Section 71(2) interest from the day after the QPD.
3. 31 December 2025 — the year closes; the base (taxable income) is now historically complete. The final debt exists, but is unquantified.
4. 1 January – 30 April 2026 — the four-month Section 37A(1) window. The company computes its taxable income, files the ITF 12C and pays the balance (tax per Section 7(2) minus QPDs and credits, Section 72(8) set-off).
5. The filing moment — Section 37A(10)–(11) fuse: the return is a deemed assessment, treated as served on the later of the due date (30 April 2026) or the actual filing date. If the company files on 20 March 2026, the deemed service date is 30 April 2026; if it files late, on 15 June 2026, the deemed service date is 15 June 2026 — but lateness has already triggered Section 46(1)(a) exposure and the unpaid balance has been accruing interest from its due date.
6. After 30 April 2026 — any unpaid balance is an arrear: interest runs (Section 71(2)), the Section 51(3)/Section 62 objection clock governs disputes on any ZIMRA-issued assessment, and the recovery machinery (Sections 58, 77–79) is available, subject to pay-now-argue-later (Section 69).

Note carefully what filing late does not do: it does not defer the debt. The tax was chargeable for 2025 regardless; Section 25D and Sections 45–47 ensure non-filing simply substitutes ZIMRA's estimate (final and conclusive if the taxpayer stays silent, Section 72(4)–(5) for provisional tax; Section 45 for the year) plus additional tax (Section 46(1)(a): the greater of 100% of the tax or the maximum level-seven fine) for the taxpayer's own numbers.

C.3 Self-assessment as self-created exigibility

The deeming pair in Section 37A(10)–(11) deserves its own treatment because it inverts the intuitive model of tax debts. Under the pre-2007 dispensation, the Commissioner assessed everyone: quantification was always a State act. Since Act 12 of 2006 inserted Section 37A (operational from 1 January 2007, and generalised by the four-month rule from year of assessment 2023), the taxpayer's return is the assessment for specified taxpayers. Three consequences:

• There is no gap between quantification and arming. The Section 37A(1)(b) duty to "calculate … and pay" makes the payment obligation contemporaneous with filing; the due date for the balance is the filing deadline itself.
• The taxpayer cannot object to its own return. Objection (Section 62) lies against assessments; where the "assessment" is the taxpayer's own deemed one, the correction route is a revised return or a request to ZIMRA — not Part VII. The objection machinery re-enters only when ZIMRA issues its own instrument (Section 37A(12)–(13), with mandatory statement of reasons; or Sections 45–47).
• The deeming presupposes legal compliance. The Nestlé line (20-SC-290; 23-HH-312) — annotated against Section 37A(11) — establishes that a return treated as an assessment must comply with the law; a non-compliant return does not earn the deemed-assessment status, leaving the Commissioner free to assess.

For VAT, self-created exigibility has been the design from the start: Section 28(1) makes the operator calculate and pay per tax period, and the return-due date and the payment-due date are the same day — now the 15th. There is no VAT analogue of the QPD estimate cycle because the tax period itself is short; quantification is near-contemporaneous with the charge.

C.4 The withholding family: instant creation in another's hands

Withholding taxes create debt in the hands of a person other than the economic taxpayer, and they do so instantly. The pattern (from itcwithholding and confirmed by Section 71(3)): the paying agent must deduct at source and remit by a Schedule deadline — PAYE by the 10th of the following month (13th Sched para 3(1)); the REV 5 withholding family likewise on the 10th (Compliance Calendar; the various Schedules use "within 10 days of the date of payment/distribution" formulations); Section 80 contract withholding (30% absent an ITF 263) by the 10th of the next month. Three creation-theory points:

1. Two debts, one amount. The employee/payee remains liable for the year's tax; the agent owes the withheld amount as a separate statutory debt. Payment by the agent extinguishes both pro tanto; failure by the agent leaves the agent personally liable without releasing the underlying taxpayer's annual computation (credits attach only to amounts actually withheld/remitted per the relevant Schedule).
2. Arming is near-instant. The agent's debt arms on the Schedule deadline — at most ~40 days after the underlying payment (month-start payroll, 10th of next month), at least 10 days (per-event withholdings).
3. Interest is automatic. Section 71(3) extends SI-fixed interest to the Ninth, Thirteenth, Fifteenth, Sixteenth, Seventeenth and Eighteenth Schedule amounts from the day after the Schedule deadline.

C.5 The due-date catalogue

Assembling B.3 and the Compliance Calendar into one operating table (31 December year-end assumed; statute prevails over calendar where they diverge):

Each row is a distinct arming rule; a taxpayer with employees, contracts, VAT registration and trading income lives all of them simultaneously, which is precisely why the TaRMS Single Account (Taxpayer Account Management lesson) presents a unified ledger — and why its oldest-first allocation rule matters when a payment arrives that is smaller than the stack of armed debts.

C.6 What accretes after arming: interest and additional tax as derivative debts

The moment a due date passes unpaid, the debt begins to grow by two distinct mechanisms — both derivative debts that share the principal's character and recovery routes (full anatomy in the Identification lesson; the creation rules belong here):

• Interest — compensatory, automatic, continuous: ITA Section 71(2)–(3) at the SI 212/2022 rate () from the day after the due date until payment in full; VAT interest per the Fifth Schedule machinery, the rates substituted by SI 25 of 2025: local currency at bank policy rate + 5%, foreign-currency debts at 10% per annum. Interest needs no assessment and no demand; it is created day by day by the statute itself.
• Additional tax — penal, discretionary in remission but statutory in creation: Section 46 amounts attach at quantification when a default/omission is found (100% / level-7 fine; 2× repeat); the VAT twin (Section 39, studied in Disputes) reaches 100% with the Section 39(5) remission triad. Civil penalties (Section 25C registration, Section 80FF e-filing, etc.) are further statutory debts with their own creation events.

The compounding lesson for debt management: a debt's age is measured from its due date, not from any later assessment or demand — so the cheapest day to fix a tax debt is always today.

C.7 The currency of the debt at creation

Since the multi-currency re-opening, what currency the debt is created in is itself a statutory question. Income tax: Section 37AA requires separate returns where any part of trade or investment income is foreign currency; the foreign-currency return's currency of account is the USD; assessment is proportional; conversion uses the quarterly average auction rate (QPD payers) or the binding annual election (others). VAT: Section 38(4)–(4a) ties the tax's currency to the consideration's — receive USD, owe USD (Delta 23-HH-577; Inamo 23-SC-096). The Single Account ledgers the two currencies separately and never nets them. A debt created in USD cannot be discharged by tendering local currency at a self-chosen rate; mis-currency payment is non-payment (the VAT Section 50A withholding analogue treats wrong-currency remittance as deemed non-withholding — tarmstaxagentregistration).

D.1 Individual — consultant with mixed income (year of assessment 2025, USD)

Tendai is an ordinarily resident engineer: employment salary (PAYE fully withheld under the Thirteenth Schedule) plus private consultancy income invoiced in USD. Her consultancy taxable income for 2025 will turn out to be USD 24,000, attracting tax of, say, USD 6,000 for illustration (her marginal computation belongs to the PAYE lessons; assume the figure).

Creation analysis. Her salary tax debt is created at each payroll and dies almost immediately: her employer withholds and remits by the 10th of the following month — Tendai never holds that debt. Her consultancy tax is different: she is a provisional taxpayer for that slice (Section 72(2) — taxable income not subject to PAYE). Her 2025 QPD schedule, on an estimate of USD 6,000 annual tax:

Suppose she skips QPD 2 entirely and pays it only on 25 August 2025 (61 days late). The USD 1,500 was an armed debt from 26 June; Section 71(2) interest runs for 61 days at the SI 212/2022 rate — at an assumed illustrative 10% per annum: USD 1,500 × 10% × 61/365 = USD 25.07 (). If instead her estimate had been honest but low — estimated tax USD 5,500 against an actual USD 6,000 — her underestimate is USD 500/6,000 = 8.3% ≤ 10%, within the Section 72(11)(b) tolerance, so the Commissioner-General may waive the interest on the instalment deficits. Had she estimated USD 4,800 (20% under), no tolerance: each instalment deficit (e.g. QPD 4 paid 35% × 4,800 = 1,680 against 35% × 6,000 = 2,100 due → USD 420 deficit) is deemed unpaid provisional tax (Section 72(10)) bearing interest from 21 December.

Her annual return: as a specified taxpayer with non-remuneration income she must file the ITF 12C by 30 April 2026 (Section 37A(1)) — Section 37A(8) cannot excuse her because her taxable income is not solely directive-taxed remuneration. On filing, her return is the deemed assessment (Section 37A(10)–(11)); the balance (USD 6,000 − QPDs paid − credits) is payable with it.

D.2 SME — retail company with employees and VAT (Category C)

Mbare Hardware (Pvt) Ltd trades in hardware, is VAT-registered (Category C, monthly periods), employs eight staff, and earns partly in USD. Its March 2026 month generates: PAYE withheld USD 1,840; output tax USD 13,500 less input tax USD 9,300 = VAT payable USD 4,200 (receipts predominantly USD → debt in USD per Section 38(4)); and it is mid-way through its 2026 QPD cycle on an estimated annual tax of USD 48,000.

Its April 2026 debt-creation diary:

Now the company hits a cash crunch and pays the VAT on 28 April, thirteen days late, believing the old 25th deadline still applied. The debt armed on 16 April; Fifth Schedule interest (SI 25/2025) on a USD debt runs at 10% p.a.: USD 4,200 × 10% × 12/365 = USD 13.81, plus exposure to the VAT Section 39 penalty regime for late payment. The diary error is the point: the Finance (No. 2) Act 7 of 2024 moved the goalposts w.e.f. 1 January 2025, and the widely circulated calendar still shows the 25th.

Its QPD discipline: estimated 2026 tax USD 48,000 → instalments 4,800 / 12,000 / 14,400 / 16,800 on 25 March, 25 June, 25 September, 20 December 2026. If trading surges and actual 2026 tax lands at USD 60,000, the company underestimated by 20% — outside the Section 72(11)(b) tolerance — so each instalment's deficit (e.g. QPD 1: 10% × 60,000 = 6,000 due vs 4,800 paid → 1,200 deficit) is deemed unpaid from its QPD and bears interest, unless special circumstances (Section 72(11)(a), SZ) or a revised mid-year estimate trued up the later instalments (the estimates accompany each payment, Section 72(3) — the statute expects revision as the year clarifies). As an SME within the Finance Act Section 2B definition it could also have elected monthly provisional payments (Section 72(14)) to smooth cash-flow.

If the company simply did not file its 2025 ITF 12C: ZIMRA may estimate (Section 45), and Section 46(1)(a) adds the greater of 100% of the tax chargeable or the maximum level-seven fine — on a USD 20,000 liability, additional tax of USD 20,000, doubling the debt at the stroke of quantification (and 2× that on a repeat, Section 46(1a)). The creation lesson: silence does not stop creation; it only surrenders the quantification to ZIMRA on punitive terms.

D.3 Large corporate — multi-head, multi-currency

Zambezi Beverages Ltd (31 December year-end, specified taxpayer, Category C VAT, ~70% USD revenue) lives every row of the due-date catalogue simultaneously: monthly PAYE for 600 employees (10th), REV 5 withholding on technical-fee and royalty payments to its foreign parent (within 10 days of payment, Seventeenth/Nineteenth Schedule machinery — itcwithholding), monthly VAT in two currencies (15th; Section 38(4) matching — Delta, Inamo), QPDs in both currencies (Section 37AA: quarterly average auction rate conversions for its local-currency stream), and the four-month ITF 12C with the related-party annexure (ITF 12C2).

Three corporate-scale creation issues:

1. Dual-currency creation (Section 37AA). Earning in both currencies, it files separate returns; each is its own deemed assessment (Section 37AA(4)) creating a USD debt and a local-currency debt that are never netted. An overpayment in ZWG cannot extinguish a USD arrear.
2. Estimate governance. With a USD tax bill in the millions, the Section 72(11)(b) 10% tolerance is a board-level control: a 12% underestimate on USD 2,400,000 of annual tax means deficits across all four QPDs bearing automatic interest. Treasury must re-forecast before each QPD (Section 72(3) contemplates exactly this) and document special circumstances contemporaneously if a shock (currency event, drought, tariff change) lands late in the year (SZ 20-HH-142).
3. Intermediary risk allocated by FA Section 4B. When Zambezi pays USD 16,800,000 of QPD 4 through its bank on 19 December and the bank only credits the CRF on 23 December, the bank owes the 15% USD interest under Section 4B(4) — Zambezi's debt was discharged on payment to the approved intermediary on time.

The corporate compliance design that follows: a due-date master calendar reconciled to the statute (not to secondary calendars), per-head and per-currency; QPD re-estimation as a standing quarterly treasury agenda item; and a rule that every extension request distinguishes filing relief (Section 37A(4)) from payment relief (Section 71(2) proviso), because only the latter stops interest.

The creation provisions carry a substantial annotated case line in the source Acts. Each case below is cited as annotated against the relevant section in the consolidated 27 May 2025 Acts; full holdings beyond the annotation are flagged where not independently confirmable.

Zimplats v ZIMRA 22-HH-845 (annotated at ITA Section 6). Anchors the charging analysis: the levy of income tax is the work of Section 6 read with the charging (Finance) Act — the foundation of the proposition that the debt is created by statute, not by ZIMRA's administrative acts.

Gonese I v Minister of Finance and Economic Development 22-HH-265 (annotated at ITA Section 7). Rates of tax are fixed by the charging Act — Parliament's annual Finance Act. For creation doctrine: no rate, no computable debt; and rate-setting outside Parliament is constitutionally suspect (the theme developed for levies in itclevies via Mlilo 19-HH-605).

Paperhole Investments (Pvt) Ltd 24-HH-149 (Disputes lesson; cross-referenced here). An assessment computed on gross income instead of taxable income is invalid, and recovery steps built on it collapse. Creation significance: the charge (Section 6) is on taxable income; an instrument that mismeasures the base fails as a quantification, but the underlying first-life liability remains assessable by a lawful instrument.

CF (Pvt) Ltd v ZIMRA 18-HH-099; DNS (Pvt) Ltd v ZIMRA 19-HH-722; TL v ZIMRA 20-HH-413 (annotated at Section 37A(11)). The deemed-assessment line: a furnished self-assessment return operates as an assessment served on the later of the due date or actual filing date. CF also bears on whether ZIMRA is precluded from issuing further amended assessments (annotated at Section 47) — it is not, within the Section 47 limits.

Nestlé Zimbabwe (Pvt) Ltd v ZIMRA 20-SC-290 and 23-HH-312 (annotated at Section 37A(11) and Section 51(2)). The deeming and the notice machinery operate only where the return/notice complies with the law — the compliance proviso that disciplines both taxpayer-made and Commissioner-made quantifications.

IAB Company v ZIMRA 22-HH-032 (annotated at Section 37A(10) and Section 47(1)(b)). Confirms the self-made-assessment doctrine and its interaction with the Commissioner's adjustment powers.

PPC v ZIMRA 19-HH-755 (annotated at Section 45(2) and Section 47). The Commissioner's power to agree an assessment is non-delegable to junior officers; agreed assessments are non-objectionable. Creation significance: an agreed quantification is final the day it is struck — choose the numbers carefully.

PL Mines (Pvt) Ltd v ZIMRA 15-HH-466 (annotated at Section 46(1) and (1a)). The Section 46 additional-tax paragraphs are disjunctive — each default or omission is a separate trigger; and the 2× repeat multiplier is real. Quantification of a defaulted year can therefore create a debt double (or quadruple) the principal.

Sommer Ranching (Pvt) Ltd v COT 99-SC-065 (annotated at Section 46(1)(d)). Non-disclosure additional tax: the difference-based measure attaches where undisclosed facts depressed the computed tax.

Mayor Logistics (Pvt) Ltd v ZIMRA 14-CC-007 (annotated at Section 71(1)). The Constitutional Court's anchor for the payment machinery: due dates and instalment determinations under Section 71(1) — and the pay-now-argue-later architecture they support — withstand constitutional scrutiny. The Section 71(1) instalment power is the statutory basis of payment plans (developed in Taxpayer Engagement & Compliance).

Man Ltd v ZIMRA 20-HH-078 (annotated at Section 71(2) and Section 47 proviso). Interest under Section 71(2) is automatic on late payment; and "wilful" non-disclosure unlocks the unlimited re-opening window — both creation-side multipliers of a neglected debt.

MR Bank Ltd v ZIMRA 19-HH-779 (annotated at the Section 71(2) proviso). The special-circumstances interest-free extension is the only statutory route to a no-interest deferral — distinct from a mere filing extension under Section 37A(4).

Redan Petroleum (Pvt) Ltd v ZIMRA 23-HH-637 (annotated at Section 72(2)). Provisional tax is payable in four quarterly instalments, not in one year-end sum — the QPD obligations are independent armed debts as each date passes.

SZ (Pvt) Ltd v ZIMRA 20-HH-142 (annotated at Section 72(11)(a)). "Special circumstances" waiver of QPD interest: genuine incapacity through circumstances beyond the taxpayer's control, assessed on the facts — the safety valve beside the 10% underestimation tolerance.

ZIMRA v Packers International (Pvt) Ltd 16-SC-028 (annotated at VAT Section 28(2)). The VAT return obligation exists whether or not tax is payable — nil and refund periods still require the VAT 7 by the statutory day; non-filing is itself a default with penalty consequences.

Delta Beverages (Pvt) Ltd v ZIMRA 23-HH-577; Inamo Investments (Pvt) Ltd v ZIMRA 23-SC-096; Prosperous Days Investments v ZIMRA 21-HH-024 (annotated at VAT Section 6(1) and Section 38(4)). The currency-matching line: VAT received in foreign currency must be remitted in foreign currency; the debt is created in the currency of the consideration. Delta also frames Section 6 as imposing "just 'a tax'" on the value of supplies — one charge, with currency as a payment modality fixed by Section 38(4).

No Zimbabwean case in the sources decides the abstract jurisprudential question of whether assessment is constitutive or declaratory in so many words; the proposition in this lesson is built from the statutory architecture itself (Sections 25D, 45–47, 77) and the Paperhole invalid-instrument logic, and is stated on that basis.

1. "No assessment, no debt." The most dangerous belief in this area. The charge created the debt when the income accrued or the supply occurred; Sections 45–47 mean ZIMRA can quantify it years later (six years; without limit on fraud, misrepresentation or wilful non-disclosure), with Section 46 additional tax and back-interest attached. The correct approach: treat every taxable event as having already created a debt, and manage its quantification proactively — including by voluntary disclosure (VDA01, Taxpayer Engagement lesson) where history is bad.

2. Diarising the dead VAT date. Operators (and off-the-shelf compliance calendars) still showing the 25th for VAT 7. Since 1 January 2025 the statutory day is the 15th (Section 28(1) as amended by FA(No.2) 7/2024). Ten days of unintended interest and penalty exposure every period. Re-anchor every diary to the statute.

3. Confusing filing extensions with payment extensions. A Section 37A(4) extension to furnish the return is expressly "subject to section seventy-one": the tax remains due per Section 71 and interest runs unless the Commissioner grants the Section 71(2) proviso interest-free extension on special circumstances. Ask for the right relief, in writing, before the due date.

4. Treating QPDs as advisory. Redan settles that the four instalments are obligations, each armed on its date. The compounding errors: no estimate filed (inviting a final-and-conclusive Commissioner estimate under Section 72(4)); a stale estimate never revised despite Section 72(3) expecting one per payment; and underestimation beyond 10% with no contemporaneous record of special circumstances. Each instalment deficit is deemed unpaid provisional tax (Section 72(10)) bearing automatic interest.

5. Skipping nil returns. Income tax: Section 37A(2) requires the return "whether or not tax is payable". VAT: Section 28(2) likewise (Packers). Dormant companies escape penalty only via the sworn dormancy declaration within 30 days of the Section 37(1) notice — silence is not dormancy.

6. Paying in the wrong currency. A USD-created debt (Section 37AA stream; VAT Section 38(4) receipts) is not discharged by local-currency tender; the currencies are ledgered separately and never netted. Map every revenue stream to its debt currency at creation, not at payment.

7. Believing the bank's delay is your problem — or that your delay is the bank's. Under FA Section 4B, payment to an approved intermediary in time discharges the taxpayer; the intermediary bears the 24-hour remittance duty and the 15%/policy+5% interest. But the converse trap is real: initiating payment on the due date through a channel that is not an approved intermediary, or after banking hours, may leave the taxpayer unpaid at law. Keep proof of the payment time.

8. Forgetting that withheld amounts are never "cash-flow". PAYE and the REV 5 family are debts in the agent's hands from the moment of withholding, armed on the 10th (or 10 days after the event). Using withheld tax as working capital creates an arrear with interest (Section 71(3)), penal exposure, and — as the insolvency and closure lessons showed — personal-liability and priority consequences.

9. Objecting to your own self-assessment. Part VII objection lies against assessments served by the Commissioner; your own deemed assessment is corrected by revised return/engagement, and the objection clock (30 days, Section 51(3)/Section 62) starts only when ZIMRA issues its instrument. Watching the wrong clock forfeits rights.

10. Reading the calendar instead of the Act for QPD arithmetic. The instalments are 10/25/30/35 per cent of the estimated annual tax per instalment (Section 72(7)) — cumulative 10/35/65/100 — not the "cumulative 25%/55%" labels seen in some secondary materials. Compute from the statute.

Work through the questions one at a time. Choose an answer and it is graded immediately, with an explanation and the provision it comes from. Your progress is saved, so you can stop and resume.

• The debt is born at the charge. ITA Section 6 and VAT Act Section 6 create the obligation when the taxable event occurs; assessment and registration are machinery, not preconditions (Section 25D; Sections 45–47).
• Three moments, three dates: charge (creation) → quantification (Section 37A self-assessment or Sections 45/46/47/51; VAT Sections 15/28(1)(b)/31) → due date (Section 71(1); Section 72 QPDs; 13th Sched para 3; VAT Section 28(1)). Place every amount on this map before advising.
• Self-assessment fuses the moments: the return is a deemed assessment served on the later of the due date or filing date (Section 37A(10)–(11)); filing and paying are one obligation (Section 37A(1)(b)).
• The due-date catalogue (statute over calendar): PAYE and the withholding family — 10th of the following month; QPDs — 10%/25%/30%/35% on 25 Mar/25 Jun/25 Sep/20 Dec; annual ITF 12C and balance — 4 months after year-end; VAT 7 — 15th w.e.f. 1 January 2025 (FA(No.2) 7/2024); VAT special returns — 30 days.
• Interest is automatic and assessment-free: Section 71(2)–(3) from the day after the due date (SI 212/2022 — rate to verify); VAT Fifth Schedule per SI 25/2025 (policy rate +5% local; 10% forex). Additional tax (Section 46) can double — or quadruple — a defaulted debt at quantification (PL Mines).
• Estimates are governed: Commissioner's provisional estimates are final and conclusive (Section 72(4)–(5)); deficits are deemed unpaid (Section 72(10)); the only outs are ≤10% underestimation (Section 72(11)(b)) or proved special circumstances (Section 72(11)(a), SZ); SMEs may elect monthly payments (Section 72(14)).
• Currency is fixed at creation: Section 37AA separate returns (USD currency of account; per-quarter auction rates or binding election); VAT Section 38(4) pay-as-you-received (Delta, Inamo); the two ledgers never net.
• Extensions come in two species: filing relief (Section 37A(4)) and interest-free payment relief (Section 71(2) proviso, MR Bank) — only the second stops the meter.
• Paying an approved intermediary on time discharges you (FA Section 4B): the 24-hour remittance duty and the 15%/policy+5% interest are the bank's burden, not yours.
• Policy insight: the creation architecture front-loads the State's cash-flow (withholding at source, QPDs, per-period VAT, the 2025 deadline accelerations) while keeping the taxpayer the primary quantifier — a design that rewards estimation discipline and punishes silence far more heavily than honest error.

Comparison table — the three moments across the main tax heads

Due-date wheel — recurring obligations of a full-profile taxpayer (31 Dec year-end)

Diagram — the creation chain of a tax debt

flowchart TD
 A[Taxable event occurs
income accrues / supply made / remuneration paid] --> B[CHARGE attaches
ITA Section 6 / VAT Section 6]
 B --> C{Who quantifies?}
 C -->|Taxpayer files| D[Self-assessment Section 37A / VAT 7 Section 28]
 C -->|Taxpayer silent or wrong| E[Commissioner assesses
Sections 45 / 46 / 47 + Section 51 notice; VAT Section 31]
 D --> F[Return = deemed assessment
Section 37A 10 and 11]
 E --> G[Additional tax Section 46 may attach
greater of 100% or level-7 fine; x2 repeat]
 F --> H[DUE DATE arms the debt
Section 71-1 / Section 72 QPDs / 13th Sched para 3 / VAT Section 28-1]
 G --> H
 H --> I{Paid by due date?}
 I -->|Yes| J[Debt discharged
FA Section 4B: payment to approved intermediary discharges taxpayer]
 I -->|No| K[ARREAR: interest runs automatically
Section 71-2 and 71-3 SI 212/2022; VAT 5th Sched SI 25/2025]
 K --> L[Recovery machinery available
Section 58 garnishee / Sections 77-79 civil recovery / Section 69 pay-now]

Statutes & sections

• Income Tax Act [Chapter 23:06] — Section 6 (levy of income tax — the charge); Section 7 (calculation per the charging Act); Section 25D (liability independent of registration); Section 37 (returns on public notice; 30 days; dormant-company sworn-declaration proviso; signing/deeming subss (5)–(7); Section 37(13) accounting dates; Section 37(15) partnership return); Section 37A (self-assessment: 4-month deadline (1); nil returns (2); interim (3); extension subject to Section 71 (4); signing (5)–(6); appointed preparer (7); FDS exclusion (8); deemed assessment (10)–(11); residual CG assessment with reasons (12)–(13)); Section 37AA (separate forex returns; USD currency of account; conversion rules); Section 37B (6-year records); Section 45 (estimated and agreed assessments); Section 46 (additional tax; disjunctive paragraphs; 2× repeat (1a)); Section 47 (additional assessments; practice-prevailing and 6-year/fraud provisos); Section 51 (notice of assessment; 30-day objection notice; separate partner assessments); Section 71 (due dates and instalments (1); automatic interest (2); withheld-tax interest (3)); Section 72 (provisional tax: QPDs (7); estimates (3)–(6); set-off (8); deemed unpaid deficits (9)–(10); waiver (11); SME monthly election (14)); Section 73 (payment of employees' tax); Section 77(1) (tax a debt due to the State); Thirteenth Schedule para 3(1) (withhold and remit by the 10th; +7 days grace; cessation next-day rule).
• Value Added Tax Act [Chapter 23:12] — Section 6(1) (charge on supplies, imports, imported services); Section 8(1) (time of supply — earliest-event rule, FA 1/2019); Section 15 (per-period calculation); Section 23–Section 26 (registration/liability context, cross-referenced); Section 27 (tax-period Categories A–D); Section 28(1)–(3) (return and payment by the 15th — shortened from the 25th by FA(No.2) 7/2024 w.e.f. 1 Jan 2025; nil returns; extension subject to Section 38); Section 29 (special returns — 30 days); Section 30(2) (tender returns by the 10th, FA(No.2) 7/2024); Section 31 (assessments); Section 38 (payment in full within Sections 13/28/29 time; deposits; forex matching (4)–(4a)); Fifth Schedule (interest machinery; rates per SI 25 of 2025).
• Finance Act [Chapter 23:04] — Section 2 ("charging Act"); Section 4B (approved intermediaries; 24-hour remittance (Act 7/2024); 15% USD / bank policy rate +5% interest); annual rate-fixing provisions (Section 14 and Part II credits, cross-referenced from itcfoundations).
• Statutory instruments — Income Tax (Rate of Interest) Notice 2022, SI 212 of 2022 (Section 71 interest rate — instrument not in source folder; rate flagged for verification); SI 25 of 2025 (substituted VAT Fifth Schedule rates: bank policy rate +5% local; 10% foreign currency — as recorded in the consolidated VAT Act annotations).

Case law

• Zimplats v ZIMRA 22-HH-845 — annotated at Section 6; the charge architecture.
• Gonese I v Minister of Finance 22-HH-265 — Section 7; rates fixed by the charging Act.
• Paperhole Investments 24-HH-149 — assessment on the wrong base invalid; instrument vs liability.
• CF (Pvt) Ltd v ZIMRA 18-HH-099; DNS (Pvt) Ltd v ZIMRA 19-HH-722; TL v ZIMRA 20-HH-413 — Section 37A(11) deemed-assessment line.
• Nestlé Zimbabwe (Pvt) Ltd v ZIMRA 20-SC-290; 23-HH-312 — deeming/notices effective only if law-compliant.
• IAB Company v ZIMRA 22-HH-032 — Section 37A(10); Section 47 adjustments.
• PPC v ZIMRA 19-HH-755 — Section 45(2) agreement power non-delegable; agreed assessments final.
• PL Mines (Pvt) Ltd v ZIMRA 15-HH-466 — Section 46 paragraphs disjunctive; repeat multiplier.
• Sommer Ranching (Pvt) Ltd v COT 99-SC-065 — Section 46(1)(d) non-disclosure measure.
• Mayor Logistics (Pvt) Ltd v ZIMRA 14-CC-007 — Section 71(1) payment machinery constitutional anchor.
• Man Ltd v ZIMRA 20-HH-078 — Section 71(2) automatic interest; "wilful" re-opening.
• MR Bank Ltd v ZIMRA 19-HH-779 — Section 71(2) proviso interest-free extension.
• Redan Petroleum (Pvt) Ltd v ZIMRA 23-HH-637 — Section 72(2) quarterly instalments mandatory.
• SZ (Pvt) Ltd v ZIMRA 20-HH-142 — Section 72(11)(a) special-circumstances waiver.
• ZIMRA v Packers International (Pvt) Ltd 16-SC-028 — VAT Section 28(2) nil returns obligatory.
• Delta Beverages (Pvt) Ltd v ZIMRA 23-HH-577; Inamo Investments (Pvt) Ltd v ZIMRA 23-SC-096; Prosperous Days Investments v ZIMRA 21-HH-024 — VAT Section 38(4) currency matching.

(All citations as annotated in the consolidated source Acts at the sections indicated; holdings beyond the annotations are stated conservatively.)

ZIMRA guidance

• Zimbabwe Tax Compliance Calendar (compiled from the consolidated Acts as at 27 May 2025) — monthly/quarterly/annual due-date views; note its own rule that the legislation prevails on conflict (applied here to the VAT 15th-day amendment and the QPD percentage labels).
• Comprehensive Guide to the ITF 12C and ITF 12B (ZIMRA external guides) — self-assessment and provisional-tax return mechanics (cross-referenced).
• Comprehensive Guide to the ZIMRA Self-Service Portal — TaRMS Single Account, return and payment modules (cross-referenced from the Taxpayer Account Management and TaRMS lessons).