Most accounting provisions are not tax deductible in Singapore when they are made. IRAS treats an expense as incurred only when the legal liability to pay arises, so a provision that anticipates a future cost is added back in the tax computation and deducted later, when the cost is actually incurred. The main exceptions are specific provisions: IRAS allows a specific provision for obsolete stock and a specific provision for doubtful trade debts, but not general ones. Warranty, reinstatement, unutilised leave, legal claim and restructuring provisions are usually deductible only when the liability crystallises or the money is spent.
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Accounting standards often require provisions that the tax rules do not yet recognise, so the difference must be tracked each year to claim the deduction once, at the right time.
What test does IRAS apply to a provision?
Three ideas from IRAS’s guidance do most of the work.
- The expense must be incurred. IRAS says an expense is considered incurred when the legal liability to pay arises, whether or not payment has been made. An estimate of a cost that may arise later is not yet incurred.
- Specific provisions need a present liability and a reasonable estimate. IRAS has explained that a specific provision of a revenue nature is not deductible on accrual unless the company can show that there is already a legal liability to pay at the time of accrual and that the amount is reasonably estimated.
- Anticipatory and capital items are excluded. IRAS’s guidance for construction companies says provisions made under accounting standards are not deductible because they are anticipatory in nature. Costs that are capital in nature are disallowed altogether, for example under section 15(1)(c) of the Income Tax Act 1947, which IRAS cites for reinstatement costs.
A provision that fails these tests is not lost forever in most cases. It is a timing difference: the deduction moves to the year the cost is incurred. Our guide to deductible and non-deductible business expenses covers the general rules behind this.
Which provisions are deductible, and when?
| Provision | Deductible when made? | When the deduction is usually claimed |
|---|---|---|
| Specific provision for obsolete stock | Yes, IRAS lists it as deductible | In the year it is made, if supported item by item |
| General provision for obsolete stock (for example a flat percentage) | No | When specific items are written down or written off |
| Specific provision for doubtful trade debts, or a credit-impaired (stage 3) impairment loss | Yes, if on revenue account and supported by objective evidence | In the year it is made; a later reversal is taxable |
| General provision, or stage 1 and stage 2 expected credit losses on trade receivables | No | When the debt becomes credit-impaired or is written off |
| Warranty or defects liability provision | No, no expense has been incurred | When repairs or rectification costs are incurred |
| Liquidated damages provision | No | When the damages are due and payable |
| Reinstatement or restoration provision | No | Only when actual costs are incurred, and only if IRAS’s conditions are met; otherwise capital |
| Provision for unutilised leave | Generally no | When the leave is paid or encashed |
| Accrued bonus or directors’ fees | Yes, if properly ascertained and IRAS’s conditions are met | Year of accrual, otherwise year of payment |
| Provisions for legal claims, onerous contracts or restructuring | No, anticipatory | When the liability crystallises or the cost is incurred, if revenue in nature |
Obsolete stock: specific write-downs pass, blanket percentages do not
IRAS’s list of business expenses places a specific provision for obsolete stock among deductible items and a general provision among non-deductible items. IRAS has also given a general provision for stock obsolescence as an example of a non-deductible provision.
The difference is evidence. A specific provision names the stock lines affected and shows why each one will sell for less than cost: no movement for a long period, damage, expired shelf life, a discontinued model or post-year-end sales at lower prices. A policy of providing a fixed percentage on all stock older than a certain age, without looking at the items, is the kind of general provision IRAS disallows. Our article on writing down obsolete and slow-moving stock explains how to carry out the net realisable value test that supports a specific write-down.
Doubtful debts and expected credit losses
For companies reporting under FRS 109 or SFRS(I) 9, IRAS’s e-Tax guide allows a deduction only for impairment losses on credit-impaired financial assets on revenue account, broadly stage 3 of the expected credit loss model, supported by reasonable and supportable objective evidence. No deduction is allowed for non-credit-impaired trade receivables, contract assets and lease receivables measured using the simplified approach. If those receivables later become credit-impaired, the loss becomes deductible then. Impairment losses that were allowed and are later reversed are taxable. Our guide to provisioning for bad debts and writing off receivables covers the debtor-by-debtor review in more detail.
Warranty, reinstatement and leave provisions
Warranty. Under the accounting standards, a business that sells goods with a warranty often recognises the expected cost of claims at the point of sale. For tax, IRAS’s construction guidance says provisions for expenses are not deductible because no expenses have been incurred, and that a deduction is allowed when defective work is rectified and the expenses are incurred. Apply the same logic to product warranties: add back the provision, and deduct the actual repair, replacement and service costs as they are incurred.
Reinstatement. IRAS generally treats the cost of restoring leased premises to their original condition as capital expenditure disallowed under section 15(1)(c). A deduction is available only where the costs have actually been incurred and do not relate to a provision recognised under the accounting standard for property, plant and equipment, where the reinstatement is a contractual requirement of the tenancy agreement, and where the premises are not vacated because the business is ceasing. A provision built up over the lease term is therefore never deductible as it is made.
Unutilised leave. IRAS has listed a provision for unutilised leave among expenses wrongly claimed as tax deductions in its published audit findings. The safer approach is to add back the movement in the leave provision and deduct leave pay when it is paid or encashed.
Bonuses and directors’ fees follow their own rules on when an accrual becomes deductible, explained in our guide to the accrued bonus tax deduction.
How do provision adjustments work in the tax computation?
- Start from profit before tax. Any increase in a non-deductible provision charged to profit and loss is added back.
- Claim the amounts actually used. When the company pays a warranty claim or a reinstatement contractor and charges it against the provision, there is no expense in profit and loss that year. The amount incurred is deducted in the computation, if it is otherwise deductible.
- Exclude write-backs of disallowed provisions. If part of a provision that was added back in an earlier year is released to profit and loss, that credit is deducted in the computation so it is not taxed. The exception is a reversal of an impairment loss that IRAS previously allowed, which is taxable.
- Keep a movement schedule. For each provision, record the opening balance, additions, amounts used, amounts written back and the closing balance, and the tax treatment of each line. This schedule is what keeps the deduction from being claimed twice or missed.
A company filing Form C-S does not submit its tax computation with the return, but it must have the computation and schedules ready if IRAS asks.
Example: a distributor’s year-end provisions
Example: A hypothetical electronics distributor with a continuing business closes its accounts at 31 December 2026. Its profit and loss account includes:
- A specific obsolete stock provision of $18,000 for three discontinued product lines, each supported by sales data and a price list showing they now sell below cost
- A further general stock provision of $10,000, being 5% of all stock aged over 12 months
- An increase of $12,000 in the warranty provision, while warranty repairs actually paid and charged against the provision during the year were $7,000
- An increase of $4,000 in the unutilised leave provision
- A write-back of $3,000 from a reinstatement provision that was added back in earlier years, after the landlord agreed a smaller scope of works
In the tax computation, the $18,000 specific stock provision is left as a deduction. The $10,000 general stock provision, the $12,000 warranty provision increase and the $4,000 leave provision increase are added back. The $7,000 of warranty repairs actually incurred is deducted. The $3,000 reinstatement write-back is deducted so it is not taxed, because the original provision was never allowed. The company’s movement schedule carries the remaining balances forward so that the warranty and leave costs can be claimed as they are paid in later years.
Year-end checklist for provisions
- A list of every provision in the trial balance, with opening and closing balances
- Item-level support for any obsolete stock provision: stock ageing, movement reports, post-year-end selling prices
- Debtor-level support for any doubtful debt or credit-impaired loss: correspondence, payment history, legal letters
- Warranty claim records showing costs actually incurred in the year
- The tenancy agreement clause on reinstatement and any contractor invoices
- Leave records and payroll records of leave paid or encashed
- Board or management approval for bonus accruals, and the payment dates
- Last year’s tax computation and provision movement schedule
Frequently asked questions
Our auditor requires a general provision. Can we deduct it?
Not when it is made. The accounts can include it, but for tax it is added back. The deduction comes when specific items are identified and written down, or when the cost is incurred.
Is a write-down of stock to net realisable value the same as a provision?
The accounting effect is similar, and IRAS’s distinction still applies. A write-down supported item by item is a specific provision that IRAS treats as deductible. A blanket percentage is a general provision that it does not.
Do we lose the deduction if we add back a provision this year?
Usually not. For revenue costs such as warranty repairs and leave pay, the deduction is claimed in the year the cost is incurred. The exception is a cost that is capital in nature, such as reinstatement that does not meet IRAS’s conditions, which is not deductible at all.
Is a provision for a lawsuit against the company deductible?
Not while it is only an estimate of a possible outcome. Whether the eventual settlement or award is deductible depends on whether it is revenue in nature and connected with earning the company’s income. See our guide on whether legal and professional fees are tax deductible.
Does the accounting standard decide the tax treatment?
No. The accounting standards decide what appears in the financial statements. The Income Tax Act 1947 and IRAS’s guidance decide what is deductible and when. That is why the two figures are reconciled in the tax computation every year.
Need help with provisions in your tax computation?
If your company carries stock, warranty, reinstatement or leave provisions and you want them treated correctly for tax, contact the Raffles Corporate Services team at [email protected] or on WhatsApp at +65 8501 7133. We can review the provisions in your trial balance, build the movement schedules, prepare the tax computation and Form C-S or Form C, and coordinate with your auditor on the year-end figures.
Kevin Yeo, Raffles Corporate Services