Once the charge has attached (Section 6 — Imposition lesson) and the supply has been timed (Section 8 — Time of Supply lesson), the final quantitative question is how much: on what amount does the 15.5% rate (in force from 1 January 2026 — Finance Act, 2025, Act No. 7 of 2025) actually bite? Section 9 of the VAT Act [Chapter 23:12] answers it for every supply, real or deemed. Its architecture is a general rule plus a long schedule of special values, each special value matched to a deeming provision elsewhere in the Act.
The general rule — Section 9(2)–(3) — values a supply at the consideration less the tax element. Consideration in money counts at the amount of the money; consideration otherwise than in money counts at its open market value (OMV — determined under the Section 3 cascade examined in the Defined Terms lesson). Two provisos refine the rule: the value of a postage stamp used to pay for postal services is excluded; and where the operator has not separately accounted for the tax portion, the tax is deemed to be the tax fraction of the consideration — extracted from the price, never added on top, the point confirmed in Triangle Ltd & Hippo Valley Estates v ZIMRA & 10 Ors 20-HMA-028, on appeal 21-SC-082. At the current rate the fraction is 15.5/115.5; an operator who failed to charge VAT has therefore not escaped it — his gross receipts simply contain it.
The anti-avoidance keystone is Section 9(4): where a supply is made for no consideration or below OMV, the parties are connected persons, and the recipient would not have been entitled to a full input tax deduction had he paid OMV, the consideration is deemed to be the OMV (R (Pvt) Ltd v ZIMRA 19-HH-792; ZS (Pvt) Ltd v ZIMRA 20-FAC-113). The third condition is the design insight: where the recipient could recover all the tax anyway, undervaluation costs the fisc nothing and the rule stands down. A proviso disapplies Section 9(4) to employment fringe benefits, which have their own value rule.
The special values then track the deemed supplies: the exit charge and foreign-branch transfers (Sections 7(2)/7(8)) are valued at the lesser of cost (tax-inclusive, with specified add-ons) and OMV (Section 9(5) — the Triangle & Hippo Valley "method" annotation); instalment credit agreements at the cash value (Section 9(6)), keeping finance charges out of the base; change-in-use deemed supplies at OMV (Section 9(7)); partial decreases in taxable use by the A × (B − C) formula with a 10-percentage-point de minimis (Section 9(8)); cancelled lay-bys at the amount retained (Section 9(9)); the second-hand-goods zero-rating denial at the supplier's purchase price with a connected-persons greater-of rule (Section 9(10)); fringe benefits at the PAYE cash equivalent (Section 9(11), pairing Section 8(7)); public-authority payments at the amount paid (Section 9(12)); repossessions at the unrecovered balance of the cash value (Section 9(13)); bets and winnings at the amounts received and paid (Sections 9(14)–(15)); tokens, vouchers and stamps under a three-rule code (Sections 9(16)–(18) — monetary vouchers disregarded on issue, specified-goods vouchers nil on surrender, free discount vouchers added tax-inclusive to the redeeming supply); entertainment supplied out of input-denied acquisitions and medical-aid scheme supplies at nil (Sections 9(19)–(20)); mixed considerations apportioned (Section 9(21)); agent importations at import value plus the import tax (Section 9(22)); no-consideration supplies at nil save as otherwise provided (Section 9(23)); and clearing agents deemed to charge at least US$25 per bill of entry (Section 9(23a), inserted by Finance Act 8 of 2015 and adjusted by Finance Acts 8 of 2022 and 13 of 2023).
Section 9 is where the rate change is felt: every value it produces meets the rate fixed at the Section 8 time of supply — 15% for supplies timed up to 31 December 2025, 15.5% from 1 January 2026 — and every inclusive amount is decomposed with the matching fraction. This lesson walks each subsection with computations at the current rate, integrates the annotated cases, and closes with the practitioner's valuation map.
