Every Singapore company that buys equipment, furniture, computers, or other business assets is entitled to claim capital allowances — tax deductions that reduce chargeable income over time. Yet capital allowances are one of the most under-utilised tax reliefs in Singapore, largely because the rules under the Income Tax Act are not well understood outside of accounting circles.

This guide explains how Singapore capital allowances work, which assets qualify, how to choose between the available write-off options, and how to avoid the mistakes that result in allowances being lost.

What Are Capital Allowances?

Capital allowances are tax deductions granted under the Singapore Income Tax Act (ITA) in respect of capital expenditure on qualifying business assets. Unlike ordinary revenue expenses (such as salaries, rent, and utilities), capital expenditure on plant, machinery, and equipment cannot be deducted immediately as a business expense. Instead, the cost is deducted over time through capital allowances.

The key provisions are Sections 19 and 19A of the ITA, which govern allowances on plant and machinery, and Section 14Q, which covers renovation and refurbishment costs.

Qualifying Assets for Capital Allowances

Capital allowances under Sections 19 and 19A apply to plant and machinery used in the production of income. This includes:

  • Computers and IT equipment (laptops, servers, printers)
  • Office furniture and fittings
  • Manufacturing and production equipment
  • Tools and machinery
  • Air-conditioning units and electrical fittings

Assets that do not qualify under Sections 19/19A include:

  • Land and buildings (these may qualify for industrial building allowances under a separate regime)
  • Motor vehicles that are not S-plated taxis or hired cars (see below)
  • Assets used for private purposes rather than business

Section 19: The Standard Write-Down Allowance

Under Section 19 of the ITA, capital allowances are granted over the asset’s working life as prescribed by IRAS, or over three years — whichever is shorter. IRAS publishes prescribed working life tables for different asset categories. For example, computers have a prescribed working life of three years; heavy machinery may have a longer prescribed life.

In practice, most assets will be written down over three years under Section 19, with the allowance split equally (one-third per year). This is the default option if no accelerated allowance election is made.

Section 19A: Accelerated Capital Allowances

Section 19A gives companies the option to accelerate capital allowances beyond the standard three-year write-down. There are two accelerated options:

One-Year Write-Off (Section 19A(1))

The entire cost of qualifying plant and machinery can be deducted in the year of acquisition. This is the most aggressive option and is most beneficial when the company has high taxable income in the year of purchase and wants to maximise the deduction in that year.

Three-Year Write-Off (Section 19A(1A))

One-third of the cost is deducted in each of the three years following acquisition. This mirrors the Section 19 three-year schedule but is based on acquisition year rather than the prescribed working life calculation.

Which Option to Choose?

The one-year write-off is generally most beneficial where the company is profitable and seeks to minimise tax in the year of purchase. The three-year write-off is useful when the company has lower profits in the acquisition year but expects higher profits in subsequent years. Companies combining capital allowances with the Start-Up Tax Exemption (SUTE) should model the interaction carefully, as the timing of deductions affects how much income falls within the SUTE-exempt bands.

Low-Value Assets: The S$5,000 Threshold

For individual assets costing S$5,000 or less, a company may claim a one-year write-off automatically without making an election under Section 19A. This simplifies record-keeping for small purchases such as individual pieces of office equipment, provided the company does not group assets together to exceed the S$5,000 threshold.

Section 14Q: Renovation and Refurbishment Costs

Expenditure on the renovation or refurbishment of business premises (such as fitting out an office) is not plant and machinery and does not qualify under Sections 19/19A. However, Section 14Q provides a special deduction: qualifying renovation and refurbishment costs can be deducted over three consecutive years (one-third per year), subject to a cap of S$300,000 per three-year qualifying period.

Qualifying costs include installation of fixed partitions, flooring, ceiling works, lightings, and other fixtures that are part of the renovation of existing premises. Costs of acquiring new premises or constructing new buildings are excluded.

Motor Vehicles: Special Rules

Motor vehicles are treated differently from other plant and machinery for capital allowance purposes. The general rule is that capital allowances are not available for private motor vehicles — that is, vehicles carrying a Singapore “E” or “U” registration plate that are not used exclusively for business purposes such as taxis or goods vehicles.

S-plated vehicles (Singapore-registered commercial vehicles, goods vehicles, and buses) and vehicles used exclusively for hire (such as taxis operated by transport companies) qualify for capital allowances. A company car used by a director or employee for both business and personal purposes typically does not qualify. Companies that provide company cars should take advice on the capital allowance position before acquisition.

Intellectual Property: Section 19B

Capital expenditure on the acquisition of qualifying intellectual property rights — including patents, know-how, copyrights, and trademarks — may qualify for writing-down allowances under Section 19B of the ITA. The allowance is spread over five years (or, for certain IP, 10 years). The IP must be used in the company’s trade or business to produce income.

How to Claim Capital Allowances

Record-Keeping

Maintain a fixed asset register listing every qualifying asset, its acquisition date, cost, the write-off method elected, and the remaining unclaimed balance. IRAS may request this information during an audit. Receipts, invoices, and delivery notes should be retained for at least five years.

Tax Return Filing

Capital allowances are claimed in the company’s corporate income tax return (Form C-S or Form C). The relevant schedules require the company to declare opening balances, additions, disposals, allowances claimed, and closing balances for each asset pool. Most Singapore accounting firms prepare a capital allowance schedule as part of the annual tax filing process.

Election Timing

The election for accelerated allowances under Section 19A must be made in the tax return for the relevant YA. Once the election is made, it cannot be changed retrospectively. This makes it important to plan the timing of major asset purchases relative to financial year ends and expected taxable income levels.

Common Mistakes That Result in Lost Allowances

1. Failing to distinguish capital expenditure from revenue expenditure

Repairs and maintenance of existing assets are revenue expenses deductible in full in the year incurred. Improvements or extensions that increase the value or extend the useful life of an asset are capital expenditure qualifying for capital allowances. Misclassifying improvements as repairs results in incorrect current-year deductions that IRAS may disallow.

2. Claiming allowances on non-qualifying assets

Land, buildings, motor vehicles used privately, and assets used partly for non-business purposes do not qualify (or qualify only partially). Over-claiming capital allowances is a tax compliance risk.

3. Not claiming at all

Many owner-managed companies simply do not claim capital allowances because their accountant was not asked or the company has been unprofitable. Unclaimed allowances can be carried forward and set off against future profits, so it is never too late to start claiming — provided records are available.

4. Missing the one-year write-off for the S$5,000 rule

Small items costing S$5,000 or less are routinely missed in capital allowance schedules. A systematic review of all asset purchases at year end ensures these are captured.

Conclusion

Capital allowances are a straightforward but frequently under-utilised mechanism for reducing corporate tax in Singapore. The choice between Section 19 and Section 19A write-off methods, combined with careful timing of asset purchases, can meaningfully shift the timing and quantum of tax deductions — especially when combined with other reliefs such as the Start-Up Tax Exemption or the Singapore compliance calendar’s annual filing deadlines.

Every Singapore company should maintain a current fixed asset register and confirm with its tax adviser that capital allowances are being claimed correctly each year.

Get Help with Your Singapore Tax Compliance

Raffles Corporate Services provides corporate income tax compliance for Singapore private limited companies, including capital allowance reviews, ECI filing, and Form C-S preparation.

Contact us at [email protected] or via WhatsApp at +65 8501 7133.

— The Editorial Team, Raffles Corporate Services