This lesson is the third in the Tax in Financial Statements module and it confronts the two hardest questions a preparer faces once temporary differences have been identified: should a deferred tax asset (DTA) be recognised at all, and at what rate is every deferred tax balance measured? Lesson 1 (taxfs-current-tax) built the bridge from accounting profit to tax payable; Lesson 2 (taxfs-deferred-tax-basics) taught the balance-sheet method — carrying amount versus tax base, the resulting temporary difference, and the mechanical multiplication by the tax rate. Recognition of a deferred tax liability (DTL) is almost automatic: IAS 12 paragraph 15 requires a DTL for all taxable temporary differences (subject only to the goodwill and initial-recognition exemptions). Recognition of a DTA is conditional — and that condition is the spine of this lesson.

The governing recognition rule for deductible temporary differences is IAS 12 paragraph 24: a DTA "shall be recognised for all deductible temporary differences to the extent that it is probable that taxable profit will be available against which the deductible temporary difference can be utilised." The identical test, by IAS 12 paragraph 34, governs the DTA arising from the carryforward of unused tax losses and unused tax credits. The word that carries the whole lesson is probable — more likely than not — and it is assessed against the four-part evidence framework of paragraphs 28, 29 and 36 (sufficient taxable temporary differences, expected future taxable profit, tax-planning opportunities, and the timing of expiry).

In Zimbabwe the "unused tax loss" of IAS 12 is the assessed loss of Section 15(3) of the Income Tax Act [Chapter 23:06]. Two statutory features dominate the recognition decision. First, an assessed loss may be carried forward for a maximum of six years — "no part of an assessed loss shall be deducted which was first determined in respect of a year of assessment more than 6 years before" (Section 15(3), proviso (iv)(b)) — except an assessed loss from mining operations, which carries forward indefinitely. Second, proviso (ii) forfeits the loss entirely where a change in shareholding has been effected mainly to traffic in the loss. The six-year clock and the change-of-ownership trap are precisely the kind of "identifiable causes" and "expiry" factors that paragraph 36 tells the preparer to weigh.

Measurement is fixed by IAS 12 paragraph 47: every deferred tax balance is measured "at the tax rates that are expected to apply to the period when the asset is realised or the liability is settled, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period." In Zimbabwe that rate is the 25% company rate set by Section 14(2)(c) of the Finance Act [Chapter 23:04]. Three measurement disciplines recur: deferred tax uses the rate expected on reversal, not necessarily today's rate (paragraph 47); where income passes through bands or special regimes, average expected rates apply (paragraph 49); and deferred tax is never discounted, however distant the reversal (paragraph 53).

Recognition is not a once-and-for-all decision. IAS 12 paragraph 56 requires the carrying amount of a DTA to be reviewed at each reporting date and written down to the extent recovery is no longer probable, with the write-down reversed if recovery becomes probable again; paragraph 37 requires the mirror exercise for previously unrecognised DTAs, which are brought onto the balance sheet once future taxable profit becomes probable. A DTA is therefore a living estimate that breathes with the company's forecasts — a feature that makes it one of the most judgemental, and most frequently restated, numbers in the financial statements.

The rates and thresholds that matter in this lesson: company rate 25% (Finance Act Section 14(2)(c)); assessed-loss carry-forward six years, proviso (iv)(b) of Section 15(3), mining excepted; recognition threshold "probable" (paras 24, 34); measurement basis enacted/substantively enacted reversal rate, no discounting (paras 47, 53). The lesson links backwards to Lessons 1 and 2 and forwards to Lesson 4 (the effective-tax-rate reconciliation), where the recognition and de-recognition of DTAs become some of the most important reconciling items in the tax note.

A student who has mastered Lesson 2 can already compute a temporary difference and multiply it by 25%. That arithmetic is the easy 20% of deferred tax. The difficult, examinable, audit-sensitive 80% is the judgement that sits on either side of the multiplication: whether a deferred tax asset may be carried at all (recognition), and which rate the multiplication uses when the law changes or special regimes apply (measurement). This lesson is built entirely around those two judgements.

Consider why the asymmetry between assets and liabilities exists at all. A deferred tax liability represents tax the company will have to pay in future when a taxable temporary difference reverses — for example, when accelerated capital allowances on plant have been fully claimed and the accounting depreciation that follows is no longer matched by a tax deduction. Prudence and the IAS 12 paragraph 15 rule combine to say: recognise that future obligation in full, because the tax authority will certainly collect it if the company trades at all. A deferred tax asset, by contrast, represents a future reduction in tax — a benefit the company will enjoy only if it earns enough taxable profit to absorb the deduction. IAS 12 paragraph 27 states the logic exactly: "economic benefits in the form of reductions in tax payments will flow to the entity only if it earns sufficient taxable profits against which the deductions can be offset." A DTA on the balance sheet is, in substance, a forecast that the company will be profitable enough, soon enough, to use its deductions and losses before they expire. That is why the standard guards DTA recognition with the "probable" filter and why auditors and ZIMRA scrutinise it so closely.

In Zimbabwe the recognition question has unusually sharp edges because the Income Tax Act imposes a hard six-year guillotine on ordinary assessed losses (Section 15(3), proviso (iv)(b)). A loss-making manufacturer that recognises a deferred tax asset on a large assessed loss is asserting that it will return to taxable profitability — and use the loss — within six years, before the earliest tranche of that loss is extinguished by operation of law. If the recovery story stretches beyond six years, part of the DTA simply cannot be supported, regardless of how confident management is about eventual profitability. This statutory expiry transforms an abstract IAS 12 probability test into a concrete, datable scheduling exercise, and it is exactly where Zimbabwean practice diverges from the generic IFRS classroom example.

Where does this lesson sit in the module's architecture? It is the recognition-and-measurement refinement of the mechanics taught in Lesson 2. It draws directly on the assessed loss concept introduced when we computed current tax in Lesson 1 (a year of tax losses produces no current tax but creates a carry-forward), and it sets up Lesson 4: the single largest swing item in many effective-tax-rate reconciliations is "deferred tax asset not recognised" or "recognition of previously unrecognised tax losses." A practitioner who cannot defend a DTA recognition decision cannot prepare a credible ETR note. Audit interest is high precisely because the DTA is an estimate built on management forecasts; ZIMRA interest is high because an over-recognised DTA flatters reported profit and because loss-trafficking through share sales (the proviso (ii) mischief) is a known avoidance route the Commissioner polices.

This lesson rests on two pillars: the recognition and measurement paragraphs of IAS 12 for the accounting, and Section 15(3) of the Income Tax Act with the Finance Act rate for the Zimbabwean tax law that those paragraphs must be applied to. Each instrument is taken in turn and by number.

The accounting standard — IAS 12 Income Taxes

• Paragraph 24 (recognition of a DTA — deductible temporary differences). "A deferred tax asset shall be recognised for all deductible temporary differences to the extent that it is probable that taxable profit will be available against which the deductible temporary difference can be utilised," subject to the initial-recognition exemption (a transaction that is not a business combination and at the time affects neither accounting profit nor taxable profit).
• Paragraph 25 illustrates the principle: it is inherent in recognising a liability that its settlement will produce future tax deductions, so deductible temporary differences ordinarily generate a DTA.
• Paragraph 27 anchors the prudence logic: deductions reduce tax "only if it earns sufficient taxable profits against which the deductions can be offset."
• Paragraph 27A addresses restricted loss regimes: where tax law restricts the use of losses to a specific type of income, a deductible temporary difference is assessed only against other deductible differences of the appropriate type — directly relevant to Zimbabwe's ring-fences (mining vs non-mining; petroleum losses; loss against interest income).
• Paragraphs 28 and 29 (sources of taxable profit). Future taxable profit is "probable" when there are sufficient taxable temporary differences with the same authority and entity expected to reverse in the same period (para 28); where those are insufficient, the DTA is recognised to the extent of expected future taxable profit or tax-planning opportunities (para 29).
• Paragraph 34 (unused tax losses and credits). "A deferred tax asset shall be recognised for the carryforward of unused tax losses and unused tax credits to the extent that it is probable that future taxable profit will be available against which the unused tax losses and unused tax credits can be utilised."
• Paragraph 35 (history of recent losses). The recognition criteria are the same as for deductible temporary differences, but "the existence of unused tax losses is strong evidence that future taxable profit may not be available." A company with a history of recent losses recognises a DTA on losses only to the extent of sufficient taxable temporary differences or convincing other evidence, and paragraph 82 then requires disclosure of that amount and the supporting evidence.
• Paragraph 36 (the four assessment criteria). In judging probability, the entity considers: (a) sufficient taxable temporary differences against the same authority; (b) whether taxable profit is probable before the losses expire; (c) whether the losses arise from identifiable causes unlikely to recur; and (d) tax-planning opportunities.
• Paragraph 37 (reassessment of unrecognised DTAs). At each reporting date the entity reassesses unrecognised DTAs and recognises a previously unrecognised DTA to the extent it has become probable that future taxable profit will allow recovery.
• Paragraph 47 (measurement). Deferred tax is measured "at the tax rates that are expected to apply to the period when the asset is realised or the liability is settled, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period."
• Paragraph 48 (substantive enactment). Where a government announcement "has the substantive effect of actual enactment," the announced rate is used even before formal enactment.
• Paragraph 49 (different rates). Where different rates apply to different levels of taxable income, deferred tax uses the average rates expected to apply on reversal.
• Paragraph 51 (manner of recovery). Measurement reflects the tax consequences that follow "from the manner in which the entity expects... to recover or settle" the carrying amount of the asset or liability.
• Paragraph 53 (no discounting). "Deferred tax assets and liabilities shall not be discounted," because reliable scheduling of every reversal is impracticable (paragraph 54).
• Paragraph 56 (review of DTAs). The carrying amount of a DTA "shall be reviewed at the end of each reporting period," reduced where recovery is no longer probable, and the reduction reversed where recovery becomes probable again.

The Zimbabwean tax law — Income Tax Act [Chapter 23:06] and the Finance Act

• Section 15(3), Income Tax Act [Chapter 23:06] (assessed loss carry-forward). After the deductions in subsection (2) and Sections 17 and 18, "there shall be deducted any assessed loss determined in respect of the previous year of assessment." This is the statutory mechanism that creates the carry-forward "unused tax loss" to which IAS 12 paras 34–36 attach.
• Section 15(3), proviso (iv)(a) (FIFO ordering). Where a loss has been carried forward over two or more consecutive years, the part "determined in respect of the earliest such year shall be deducted first," then the next, and so on — a strict first-in-first-out consumption order that matters for scheduling against the six-year limit.
• Section 15(3), proviso (iv)(b) (the six-year limit). "Except in the case of an assessed loss or any part thereof arising from mining operations, no part of an assessed loss shall be deducted which was first determined in respect of a year of assessment more than 6 years before the year of assessment in which the deduction is made." This is the single most important Zimbabwean overlay on IAS 12 DTA recognition.
• Section 15(3), proviso (ii) (change-of-shareholding anti-avoidance). Where the shareholding of a company with an assessed loss (or of a company controlling it) changes and the Commissioner is satisfied the change was effected "solely or mainly... for taking advantage of such assessed loss, no assessed loss incurred prior to that change shall be deductible." The loss is forfeited — a binary event that destroys the DTA.
• Section 15(3), proviso (i) (insolvency). A taxpayer adjudged insolvent or who has assigned his estate to creditors may not carry forward a loss incurred before that event.
• Section 15(3), provisos (v) and (vi), and subsections (5)–(6) (ring-fences). A conversion between a company and a private business corporation preserves the loss only where it is not a loss-trafficking scheme (proviso (v)); mining losses across multiple locations require a Commissioner-approved breakdown (proviso (vi)); petroleum-operation losses cannot shelter other trades (subsection (5)); and assessed losses generally cannot be set against interest income (subsection (6)). These ring-fences are the Zimbabwean embodiment of the "restricted sources" contemplated by IAS 12 paragraph 27A.
• Finance Act [Chapter 23:04], Section 14(2)(c) (the rate). "Taxable income of company or trust" is taxed at 25%. This is the rate at which deferred tax is measured under IAS 12 paragraph 47, because 25% is enacted and expected to apply when ordinary temporary differences and recovered losses reverse. The mining rate (Section 14(2)(g)) is also 25%; special manufacturing/export rates under Section 14(3) (e.g. 20%) apply where the qualifying conditions are met, in which case paragraph 47 requires deferred tax to be measured at that expected reversal rate.
• AIDS levy. An additional levy is charged on income tax payable.

The policy rationale behind the statutory overlay is worth stating because it explains the recognition discipline. The six-year limit and the change-of-ownership forfeiture exist to stop loss trafficking — the practice of acquiring a dormant loss-making shell purely to shelter a profitable business's income. IAS 12's "probable" test and Zimbabwe's anti-avoidance provisions therefore pull in the same direction: both refuse to let a tax benefit sit on the balance sheet, or reduce tax payable, unless there is a genuine, near-term commercial expectation of using it.

This section builds the recognition and measurement frameworks from the ground up, defining each term as it appears and layering plain language onto the statutory and standard-based rule.

C1 — The recognition test, decomposed

The phrase to interrogate is "to the extent that it is probable that taxable profit will be available against which the deductible temporary difference [or loss] can be utilised" (IAS 12 paras 24 and 34). Four words do the work.

"Probable" in IFRS means more likely than not — a greater-than-50% likelihood. It is a lower hurdle than "virtually certain" and a higher hurdle than "possible." A DTA is therefore neither booked on optimism nor withheld on mere doubt; it turns on a balance-of-probabilities forecast of future taxable profit.

"Taxable profit" is profit measured under the Income Tax Act, not accounting profit. The future profit that absorbs a deductible difference or assessed loss must be taxable profit of the same taxable entity assessed by the same taxation authority (here, ZIMRA). Group relief does not exist in Zimbabwe — each company is assessed separately — so a profitable sister company's income cannot rescue a loss-making company's DTA. This is a critical local point: the "available taxable profit" must be the loss company's own future taxable profit.

"Available" introduces timing and ring-fencing. The profit must arise in a period in which the deduction or loss can actually be used. For an ordinary Zimbabwean assessed loss, "available" is constrained by the six-year window (Section 15(3) proviso (iv)(b)); for petroleum or interest income it is constrained by the subsection (5)–(6) ring-fences; IAS 12 paragraph 27A mirrors this by requiring assessment only against income of the appropriate type where tax law restricts loss use.

"To the extent that" makes recognition divisible. A DTA is not all-or-nothing. If management's forecast supports using USD 600,000 of a USD 1,000,000 assessed loss within six years, the entity recognises a DTA on USD 600,000 × 25% = USD 150,000 and leaves the USD 400,000 of loss unrecognised (disclosed under paragraph 81(e)). The unrecognised portion is not lost forever in the accounting sense — paragraph 37 brings it back when recovery becomes probable.

C2 — The hierarchy of evidence (paras 28, 29, 36)

IAS 12 sets a descending hierarchy of evidence for "probable future taxable profit," and a preparer should work down it in order.

1. Sufficient taxable temporary differences (para 28). The strongest, most objective evidence. If the same company has taxable temporary differences (future DTLs) reversing in the same period and against the same authority as the deductible difference or loss, the future reversal of those DTLs is itself future taxable profit. Example: a company with an assessed loss but a large DTL on accelerated capital allowances has, in effect, built-in future taxable income (the depreciation-led reversal) against which the loss can be set. The DTA is supported up to the amount of those reversing taxable differences with no forecasting required.
2. Probable future taxable profit (para 29). Where step 1 is insufficient, the entity looks to forecast trading profits, excluding the reversal of the very deductible differences under assessment (para 29(a)(i)) and ignoring deductible differences expected to originate in future (para 29(a)(ii)), because those will themselves need future profit. This step relies on budgets and business plans and is where audit challenge concentrates.
3. Tax-planning opportunities (paras 29(b), 30). Actions management could take to create taxable profit in the right period — for example, electing a recovery method, the timing of a disposal that crystallises a taxable gain, or a sale-and-leaseback. They must be within management's control and realistic.

Overlaying all three, paragraph 35 imposes a prudential brake for companies with a history of recent losses: their forecasts alone are treated with scepticism, and a DTA on losses is recognised only to the extent of taxable temporary differences or convincing other evidence (a signed long-term contract, a turnaround already evidenced by post-year-end profits, the loss arising from a one-off identifiable cause now removed). Paragraph 36(c) singles out exactly this last point: losses from "identifiable causes which are unlikely to recur" (a fire, a one-off impairment, a Covid-era shutdown) are better evidence of future profitability than losses from chronic structural unprofitability.

C3 — Mapping IAS 12 onto the Zimbabwean assessed loss

The "unused tax loss" of paragraph 34 is the assessed loss of Section 15(3). The mapping introduces three Zimbabwe-specific constraints that the generic IAS 12 narrative omits.

The six-year guillotine (proviso (iv)(b)). Because each year's loss is consumed FIFO (proviso (iv)(a)) and dies six years after the year it was first determined, a DTA can only be supported to the extent the company expects to generate taxable profit before each tranche expires. Recognition therefore requires a schedule that lines up each tranche of loss against the year it would be absorbed. A loss tranche projected to be used in year 7 is not recognisable, even on a strong forecast, because the law extinguishes it.

The mining exception. A loss "arising from mining operations" is excluded from the six-year limit and carries forward indefinitely. For a Zimbabwean mining company, the expiry constraint of paragraph 36(b) effectively falls away, so the recognition decision turns purely on the probability and timing of future mining taxable profit — a materially more permissive position than for a manufacturer.

The change-of-ownership forfeiture (proviso (ii)). This is a binary, all-or-nothing event with no IFRS analogue in the ordinary measurement model. If a loss company changes hands and the Commissioner finds the change was mainly to traffic the loss, the entire pre-change loss is forfeited. Where such a change is contemplated or has occurred at the reporting date, any DTA on the pre-change loss must be derecognised under paragraph 56, because recovery is no longer probable — indeed it has become legally impossible.

C4 — Measurement: the rate, the band, and the prohibition on discounting

Once recognition is settled, measurement answers "multiply by what?" The default in Zimbabwe is 25% (Finance Act Section 14(2)(c)), but paragraph 47 demands the rate expected to apply when the item reverses, drawn from law enacted or substantively enacted at the reporting date.

Enacted vs substantively enacted (paras 47–48). A Zimbabwean Finance Act rate is enacted when the Finance Act is gazetted. Between the annual Budget announcement (typically late November) and gazetting, a newly announced rate may be substantively enacted if the announcement "has the substantive effect of actual enactment" (para 48). A 31 December reporting company must therefore measure deferred tax at a Budget-announced new rate if that announcement is substantively certain by year-end — not at the old rate. Measuring at the wrong rate is one of the commonest deferred-tax errors.

Average rates for banded or mixed income (para 49). Where a company's income straddles different rates — for example part ordinary (25%) and part special-regime (a Section 14(3) manufacturing rate) — deferred tax uses the average rate expected to apply to the profit of the periods in which the differences reverse. The preparer must forecast the mix of income on reversal, not simply apply one headline rate.

Manner of recovery (para 51). The expected manner of recovering an asset can change the rate. Where Zimbabwe taxes a recovery through use (ordinary income tax at 25%) differently from a recovery through sale (which may engage the Capital Gains Tax Act [Chapter 23:01]), the deferred tax follows the expected route. An asset held for use is measured on the income-tax consequences of using it; an asset held for sale is measured on the CGT consequences of selling it.

No discounting (paras 53–54). Whatever the reversal date, the deferred tax balance is carried at its undiscounted amount. A loss expected to reverse in five years and one expected to reverse next year are both measured at face value × rate. The standard forbids discounting because scheduling every reversal reliably is impracticable and permitting (but not requiring) it would destroy comparability.

C5 — Recognition is a living estimate (paras 37 and 56)

The recognition decision is revisited every reporting date in both directions. Paragraph 56 requires the carrying amount of a recognised DTA to be reviewed and reduced where it is "no longer probable" that sufficient taxable profit will be available — a write-down that flows through tax expense and, in a bad year, can materially worsen the result. The reduction is reversed if recovery becomes probable again. Conversely, paragraph 37 requires unrecognised DTAs to be reassessed and brought onto the balance sheet once future profit becomes probable — for example after a turnaround, a new long-term contract, or an improvement in trading conditions. This two-way ratchet is why the line "(de)recognition of deferred tax assets" is so often a leading reconciling item in the ETR note of Lesson 4.

All figures are in United States dollars (USD); the company rate is 25% under Finance Act Section 14(2)(c) unless a worked example states otherwise; the AIDS levy is omitted for clarity and flagged in section B. Every line is shown.

Example 1 — A clean assessed loss, fully recognisable (no history of losses)

Facts. Zambezi Logistics (Pvt) Ltd, consistently profitable, suffers a single bad year ending 31 December 2025, producing an assessed loss of USD 800,000 caused entirely by a one-off warehouse fire (an identifiable cause, para 36(c)). Forecasts show taxable profits of USD 500,000 in 2026 and USD 700,000 in 2027.

Recognition test. The loss is from an identifiable, non-recurring cause; the company has no history of recent losses, so paragraph 35's brake does not bite; forecast profits of USD 500,000 + USD 700,000 = USD 1,200,000 within two years comfortably absorb the USD 800,000 loss well inside the six-year window (Section 15(3) proviso (iv)(b)). Recovery is probable in full.

Measurement. DTA = assessed loss × rate = USD 800,000 × 25% = USD 200,000.

Journal at 31 December 2025.

The DTA of USD 200,000 is recognised in full; the tax credit reduces the reported loss for the year. No portion is unrecognised.

Example 2 — Partial recognition against the six-year limit

Facts. Kopje Manufacturing (Pvt) Ltd has accumulated an assessed loss of USD 1,000,000, all first determined in the 2025 year of assessment. Management's realistic forecast supports taxable profit of USD 120,000 per year. There are no taxable temporary differences of consequence.

Scheduling against expiry. The 2025 loss must be used by the 2031 year of assessment (six years after 2025). Over the windows 2026–2031 (six years) the forecast generates 6 × USD 120,000 = USD 720,000 of taxable profit. Of the USD 1,000,000 loss, only USD 720,000 can be utilised before expiry; USD 280,000 will lapse unused.

Recognition ("to the extent that").

Disclosure. The USD 70,000 unrecognised DTA — and the USD 280,000 of losses with their 2031 expiry — are disclosed under IAS 12 paragraph 81(e) (amount and expiry date of unused losses for which no DTA is recognised). Only USD 180,000 sits on the balance sheet.

Example 3 — Supporting a DTA with reversing taxable temporary differences (para 28)

Facts. Hwange Plant (Pvt) Ltd has an assessed loss of USD 400,000 and a deferred tax liability of USD 150,000 arising from accelerated capital allowances; that DTL represents a taxable temporary difference of USD 600,000 expected to reverse over 2026–2028 (i.e. future taxable income as accounting depreciation outpaces the exhausted allowances). The company has a history of recent losses, so paragraph 35 applies.

Recognition. Under paragraph 35, a loss-history company recognises a DTA on losses only to the extent of sufficient taxable temporary differences or convincing other evidence. Here the USD 600,000 of reversing taxable differences is objective, built-in future taxable profit against the same authority and entity (para 28). The assessed loss of USD 400,000 is fully covered by that USD 600,000 (which reverses within the six-year window), so the DTA on the loss is recognisable in full without relying on forecast trading profit.

Measurement and presentation.

Because both balances relate to the same taxable entity and authority and to income taxes levied by ZIMRA, they are offset to a single net DTL of USD 50,000 in the statement of financial position. The reversing DTL is what made the DTA recoverable — a structurally important link.

Example 4 — Rate change: remeasuring deferred tax (paras 47–48)

Facts. Nyanga Estates (Pvt) Ltd carries a net deferred tax liability built on a taxable temporary difference of USD 2,000,000, measured at 25% = USD 500,000 at 31 December 2025. In the 2026 Budget announcement (late November 2025), government announces — with substantive certainty by year-end — that the company rate will fall to 24% for years of assessment from 1 January 2026, the period in which the difference will reverse.

Application of paragraph 47/48. The rate expected to apply on reversal is now 24%, and the announcement is substantively enacted by the reporting date (para 48). The deferred tax must be remeasured:

Journal.

The USD 20,000 credit is a reconciling item in the 2025 ETR note (Lesson 4): "effect of change in tax rate." Had the underlying item been recognised in OCI or equity, the remeasurement would have followed it there (para 61A), not through P&L.

Example 5 — Derecognition on a change of shareholding (para 56 meets Section 15(3) proviso (ii))

Facts. Save Valley Trading (Pvt) Ltd carries a DTA of USD 125,000 on an assessed loss of USD 500,000. On 30 November 2026 its entire shareholding is sold to an unrelated profitable group, and the facts indicate the acquirer's main purpose is to use the loss. The Commissioner is expected to invoke Section 15(3) proviso (ii) and disallow the pre-change loss.

Accounting. Recovery of the DTA is no longer probable — the statutory forfeiture removes the very loss the DTA represents. Under paragraph 56 the carrying amount is reduced to nil:

The USD 125,000 write-down hits tax expense in 2026 and appears in the ETR note as a sharply adverse reconciling item. This example shows the Zimbabwean anti-avoidance law driving an IAS 12 measurement outcome that the generic IFRS illustration never raises.

Example 6 — Bringing back a previously unrecognised DTA (para 37)

Facts. In 2024, Matabeleland Cotton (Pvt) Ltd judged recovery improbable and left a USD 90,000 DTA on losses unrecognised. During 2026 it signs a five-year supply contract that makes future taxable profit probable, and the underlying losses still sit within their six-year window.

Accounting. Under paragraph 37, the previously unrecognised DTA is recognised in 2026:

The USD 90,000 credit improves the 2026 result and is the favourable mirror image of Example 5 — "recognition of previously unrecognised tax losses" in the ETR note. The contract is the "convincing other evidence" paragraph 35 demands and the "improvement in trading conditions" paragraph 37 contemplates.

Deferred tax recognition is an accounting estimate rather than a directly litigated tax question, so the case law that matters operates on the underlying tax law — chiefly the deductibility and survival of the assessed loss that the DTA represents. Zimbabwean and persuasive foreign authority is set out below; foreign cases are non-binding and cited only for their reasoning.

ZIMRA v Murowa Diamonds (Pvt) Ltd (Supreme Court, 23-SC-085). This Supreme Court decision is annotated in the Income Tax Act alongside Section 15 on the determination of deductions and assessed losses. It is authority for the disciplined application of the Section 15 deduction rules in computing a taxpayer's taxable income or assessed loss.

The principle the cases protect. Because a DTA on losses is only as good as the loss itself, any judicial narrowing of what qualifies as a deductible expense under Section 15(2) (and therefore what enlarges or shrinks an assessed loss) feeds straight into the recognition computation. A loss disallowed by the Commissioner — whether for failing the "in the production of income" test of Section 15(2)(a) or for being capital in nature — never becomes an unused tax loss under IAS 12, so no DTA can attach to it. The classic Zimbabwean and Southern African deduction cases studied in the income-tax modules (the general-deduction line of authority) are thus the upstream law that determines whether a deferred tax asset has a base at all.

Persuasive foreign authority (non-binding). South African jurisprudence on assessed losses and the "trade" and "income from trade" requirements (decided under the equivalent South African loss provisions) is persuasive but not binding in Zimbabwe; it is routinely cited in argument because the two statutes share a common ancestry. Such authority should be labelled as persuasive and never treated as controlling a Zimbabwean assessment. No specific foreign judgment is relied upon in this lesson; practitioners should cite the actual report, not a remembered name.

The teaching point: never invent a case. Where a proposition needs authority and none can be confirmed from the sources, state the statutory rule plainly (here, Section 15(2) and Section 15(3)) rather than attribute it to an unverified judgment.

1. Booking a DTA on losses without scheduling against the six-year limit. The most frequent Zimbabwean error is multiplying the whole assessed loss by 25% and parking the result as a DTA. Section 15(3) proviso (iv)(b) extinguishes any tranche older than six years; a DTA can only be supported to the extent profit is forecast to absorb each tranche before it expires. The fix is a tranche-by-tranche schedule (Example 2). Mining losses are the exception — no six-year limit — so the error cuts the other way: under-recognising a mining DTA by wrongly applying a six-year cap.

2. Ignoring paragraph 35 for loss-history companies. A company with recent losses cannot recognise a DTA on the strength of optimistic forecasts alone; paragraph 35 demands sufficient taxable temporary differences or convincing other evidence. Auditors challenge exactly here. The correct approach is to anchor recognition first on reversing taxable temporary differences (para 28, Example 3), then on objective evidence (signed contracts, post-year-end profits), and only then on forecasts.

3. Measuring at today's rate instead of the reversal rate. Paragraph 47 requires the rate expected when the difference reverses, drawn from enacted or substantively enacted law. A Budget-announced rate change that is substantively enacted by the reporting date must be used now (paras 47–48, Example 4). Preparers who default to the current 25% miss rate-change remeasurements.

4. Discounting the deferred tax balance. Tempting for long-dated reversals, but paragraph 53 prohibits it absolutely. Carry every balance undiscounted.

5. Treating recognition as permanent. A DTA is reviewed every period (para 56) and an unrecognised DTA is reassessed every period (para 37). Forgetting the downward review overstates assets when trading deteriorates; forgetting the upward reassessment understates assets after a turnaround. Both feed the ETR note.

6. Assuming group relief. Zimbabwe assesses each company separately; there is no group loss relief. A DTA must be supported by the loss company's own future taxable profit — a profitable parent or sister cannot lend its income to the recognition test.

7. Overlooking the change-of-ownership trap. A share sale of a loss company can forfeit the entire loss under proviso (ii), requiring immediate derecognition (Example 5). Due diligence on any loss-company acquisition must flag that the DTA may vanish on completion.

8. Setting losses against ring-fenced income. Petroleum-operation losses cannot shelter other trades (Section 15(3)(5)), assessed losses generally cannot offset interest income (Section 15(3)(6)), and mining-location losses need a Commissioner-approved breakdown (proviso (vi)). A DTA premised on using a loss against ring-fenced income is unrecoverable and must not be recognised (cf. IAS 12 para 27A).

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.

• DTL recognition is near-automatic (para 15); DTA recognition is conditional (paras 24, 34). A DTA stands only "to the extent that it is probable that taxable profit will be available" against which the deductible difference or loss can be used.
• Work the evidence hierarchy in order: reversing taxable temporary differences (para 28) → forecast taxable profit (para 29) → tax-planning opportunities (para 30). A history of recent losses (para 35) restricts you to differences plus convincing other evidence.
• The Zimbabwean assessed loss expires in six years (Section 15(3) proviso (iv)(b)), consumed FIFO (proviso (iv)(a)); mining losses are indefinite. A DTA must be scheduled tranche-by-tranche against expiry, and recognised only to the extent profit absorbs each tranche in time.
• A change of shareholding can forfeit the whole loss (proviso (ii)), forcing derecognition (para 56); ring-fences (petroleum, interest, mining-location — subss (5)–(6), proviso (vi)) limit the income a loss can shelter (cf. para 27A). There is no group loss relief — support a DTA only with the loss company's own future taxable profit.
• Measure at the expected reversal rate that is enacted or substantively enacted (paras 47–48) — 25% under Finance Act Section 14(2)(c), a special Section 14(3) rate where applicable, or a substantively-enacted new Budget rate; use average rates for mixed income (para 49); reflect the manner of recovery (para 51); and never discount (para 53).
• Recognition is a living estimate: review recognised DTAs down (para 56) and unrecognised DTAs up (para 37) every reporting date. These movements are among the largest reconciling items in the effective-tax-rate note of Lesson 4.
• Policy insight: IAS 12's "probable" discipline and Zimbabwe's six-year limit and anti-trafficking forfeiture push the same way — a tax benefit may sit on the balance sheet, or reduce tax, only where there is a genuine, near-term, lawful expectation of using it.

Table 1 — DTL vs DTA: the recognition asymmetry

Table 2 — Evidence for "probable future taxable profit"

Table 3 — Measurement rules at a glance

flowchart TD
 A[Deductible temporary difference or assessed loss] --> B{Probable future taxable profit available? IAS 12 paras 24/34}
 B -- No --> C[Do NOT recognise DTA; disclose unused losses & expiry para 81e]
 B -- Yes --> D{History of recent losses? para 35}
 D -- Yes --> E[Recognise only to extent of reversing taxable temp differences para 28 or convincing other evidence]
 D -- No --> F[Recognise on forecast taxable profit para 29]
 E --> G{Within Zimbabwe 6-year limit? Section 15 3 proviso iv b - mining exempt}
 F --> G
 G -- Beyond 6 yrs / non-mining --> H[Tranche expires - exclude from DTA]
 G -- Within window --> I[Measure: loss x rate expected on reversal paras 47-49]
 I --> J[Recognise DTA - review each period paras 56 & 37]
 C --> K[Reassess unrecognised DTA next period para 37]

Statutes & sections - Income Tax Act [Chapter 23:06] — Section 15(2) (general deductions feeding the assessed loss); Section 15(3) (carry-forward of assessed loss); proviso (i) (insolvency forfeiture); proviso (ii) (change-of-shareholding anti-avoidance forfeiture); proviso (iv)(a) (FIFO consumption); proviso (iv)(b) (six-year limit; mining excepted); proviso (v) (company/PBC conversions); proviso (vi) (mining-location breakdown); subsections (5)–(6) (petroleum and interest-income ring-fences). - Finance Act [Chapter 23:04] — Section 14(2)(c) (company/trust rate 25%); Section 14(2)(g) (mining rate 25%); Section 14(3) (special manufacturing/export rates, e.g. 20%). - Capital Gains Tax Act [Chapter 23:01] — relevant where the expected manner of recovery of an asset is by sale (IAS 12 para 51).

Regulations & SIs - Annual Finance Acts giving effect to Budget rate changes (relevant to enacted/substantively enacted measurement, IAS 12 paras 47–48).

International instruments / standards - IAS 12 Income Taxes — para 15 (DTL recognition for all taxable temporary differences); para 24 (DTA recognition — deductible temporary differences; initial-recognition exemption); para 25 (liability-settlement logic); para 27 (deductions usable only against sufficient taxable profit); para 27A (restricted-source/ring-fenced losses); paras 28–29 (sources of probable taxable profit); para 30 (tax-planning opportunities); para 34 (DTA on unused tax losses/credits); para 35 (history of recent losses; convincing other evidence); para 36 (four assessment criteria, incl. expiry); para 37 (reassessment of unrecognised DTAs); paras 47–48 (measurement at enacted/substantively enacted reversal rates); para 49 (average rates); para 51 (manner of recovery); para 53–54 (no discounting); para 56 (review of DTA carrying amount); paras 58, 61A (P&L vs OCI/equity); paras 81(e), 82 (disclosure of unrecognised DTAs and supporting evidence).

Case law - ZIMRA v Murowa Diamonds (Pvt) Ltd 23-SC-085 (Supreme Court) — annotated to Section 15 of the Income Tax Act on the determination of deductions / assessed loss. - Southern African assessed-loss and "trade" authorities — persuasive, non-binding in Zimbabwe; cite the actual report when relied upon.

ZIMRA / professional guidance - ZIMRA practice on assessed losses, change-of-ownership scrutiny, and mining-location loss breakdowns (administering Section 15(3)).

Continuity: builds on taxfs-current-tax (Lesson 1 — current tax and the accounting-profit-to-tax bridge) and taxfs-deferred-tax-basics (Lesson 2 — the balance-sheet method, carrying amount vs tax base, DTL/DTA mechanics); feeds taxfs-etr-reconciliation (Lesson 4 — the effective-tax-rate reconciliation and disclosures), where (de)recognition of deferred tax assets is a primary reconciling item.