Capital allowances are the income-tax system's structured method of giving a business relief for money it spends on lasting, income-earning assets — buildings, machinery, motor vehicles, equipment and farm improvements — that the ordinary deduction provisions deliberately refuse to deduct. As established in the lesson on General Deductions, Section 15(2)(a)(i) of the Income Tax Act [Chapter 23:06] lets a taxpayer deduct expenditure incurred for the purposes of trade or in the production of income, "except … to the extent to which [it is] of a capital nature." That capital exclusion would otherwise leave a manufacturer who spends USD 500,000 on a factory with no relief at all for one of the largest costs of earning its income. Capital allowances close that gap: they are the special, scheduled deductions that Section 15(2)(c) authorises, and they are computed under the Fourth Schedule to the Act, headed "Deductions to be allowed in respect of buildings, improvements, machinery & equipment used for commercial, industrial & farming purposes."
The Fourth Schedule provides three principal allowances. The first is the special initial allowance ("SIA") under paragraph 2 — an accelerated, elective and binding front-loaded write-off of qualifying capital expenditure incurred in the year. The second is the allowance for wear and tear under paragraph 3 — the ordinary, slower depreciation deduction for assets that have not attracted SIA, or, where SIA has been claimed, the accelerated recovery of the remaining cost in the following years. The third is the scrapping allowance under paragraph 4 — a balancing deduction granted when an asset is scrapped for less than its written-down tax value. A fourth provision, the training investment allowance (former paragraph 5), was repealed by the Finance Act 18 of 2000 and survives only in transitional cross-references.
The rates are the load-bearing detail. The operative general SIA is 25% of qualifying cost in the first year of use, after which the balance is recovered as accelerated wear and tear at 25% per year for the next three years — so an ordinary business writes the asset off completely over four years (25% + 25% + 25% + 25%). For a small or medium enterprise (as defined in Section 2B of the charging Act) and for a licensed investor, the SIA is a 100% allowance, but the proviso to paragraph 9 requires it to be spread 50% / 25% / 25% over three years. Where SIA is not claimed, ordinary wear and tear runs at 2.5% straight-line for a commercial building (a 40-year life), 5% straight-line for farm improvements, industrial buildings, railway lines, staff housing and tobacco barns, and a reasonable amount the Commissioner accepts for plant and equipment (paragraphs 6 and 7).
Several monetary caps and definitions discipline what may be claimed. The cost of a passenger motor vehicle on which allowances may be computed is capped (currently USD 10,000 — paragraph 14, as amended by the Finance Act 13 of 2023); the cost of a farm dwelling is capped at USD 15,000 (paragraph 13); staff housing loses its character above a per-unit cost ceiling (currently USD 25,000 for buildings begun on or after 1 January 2008 — paragraph 1). The definition of "articles, implements, machinery and utensils" was extended in 2015 to include computer software, confirmed by the Supreme Court in ZIMRA v Stanbic Bank Zimbabwe Ltd 19-SC-013. A homestead never qualifies, and a building or work that ranks under the Seventh Schedule (farming development works — see the lesson on Taxation of Farmers) is carved out of "farm improvement" to prevent double relief.
The mirror image of the allowance is recoupment. Under paragraph (j) of the definition of "gross income" in Section 8(1) (cross-referenced in the lesson on Capital vs Revenue Receipts), any capital allowance that is later "recovered or recouped" — typically when the asset is sold — is pulled back into gross income, but only up to the total allowances actually granted; any excess of the sale price over original cost is not income tax but a capital gain under the Capital Gains Tax Act [Chapter 23:01]. A rollover in proviso (i) to paragraph (j) defers the recoupment where an asset destroyed or damaged is replaced within 18 months and brought into use within 3 years. The rates that convert taxable income into tax for the year of assessment 2025 remain 25% for companies and trusts (Finance Act [Chapter 23:04] Section 14(2)(c)) plus the 3% AIDS Levy, and the graduated individual scale up to 40% for sole traders and farmers.
This lesson walks the Fourth Schedule clause by clause — every definition, every rate, every cap, every election and every interaction — and shows, with full worked USD computations for individuals, SMEs and large corporates, exactly how to compute the SIA, the wear-and-tear allowance, the scrapping allowance and the recoupment, and how to avoid the documentation and election traps that draw ZIMRA audit attention.
