FRS 39 Income Tax: Financial Instruments, Elections and Transition

Edition and the historical scope

This twenty-page third edition was published on 30 January 2026, following editions dated 30 December 2005 and 27 March 2023. It deals with financial statements applying the August 2005 version of FRS 39. FRS 39 became applicable to annual periods beginning on or after 1 January 2005, but the guide expressly notes that FRS 109 replaced it for annual periods beginning on or after 1 January 2018. The updated publication date does not make FRS 39 the general accounting standard for a current period.

The FRS 39 tax regime generally follows accounting for instruments on revenue account to reduce adjustments. Statutory provisions, established case law and important departures from tax principles remain exceptions. This article covers the main rules and both annexes, with their historical transition dates.

The pre-FRS 39 position

Under the earlier treatment, realised revenue-account financial-asset disposal gains were taxable and losses deductible. A lower-of-cost-and-market write-down could be deductible, with reversals up to cost taxed. Capital-account gains, losses and diminution provisions were outside those treatments. Contractual interest on qualifying borrowings was deductible under section 14(1)(a); premiums or discounts on liabilities not constituting accretion to capital could be taxed or deducted.

A concession dating from 1996 accepted accounting for derivatives of banks and certain frequent users. Trading derivatives were marked to market through profit and loss. Hedges had to be identified from the outset; where closing dates differed, realised results were amortised over the underlying transaction and matched with its income or costs under clear rules. These conditions form part of the older regime rather than a blanket accounting-following rule for every taxpayer.

Annex 1: all accounting categories

The four asset categories are fair value through profit or loss (held for trading or designated), available for sale, held to maturity, and loans/receivables. Liabilities are either fair value through profit or loss, again held for trading or designated, or other liabilities measured at amortised cost.

Fair value is the general measurement basis. Loans, receivables and held-to-maturity investments instead use amortised cost and the effective-interest method. Unquoted equity whose fair value cannot be reliably measured, together with linked derivatives requiring delivery of that equity, is carried at cost under the described standard. Fair-value techniques where no active market exists consider time value, currency and commodity prices, equity prices, credit risk, volatility, prepayment/surrender risk and servicing costs. Effective interest discounts estimated cash flows over the expected life and includes integral fees, transaction costs and discounts/premiums.

Annex 1: where gains and losses enter the accounts

Fair-value-through-profit-or-loss changes go to profit and loss. Available-for-sale changes normally go directly to equity, while impairment and foreign-exchange items go to profit and loss; cumulative equity results move to profit and loss on derecognition. For amortised-cost instruments, derecognition, impairment and amortisation results enter profit and loss; effective-interest changes are shown as interest income or expense. This accounting interest includes more than the contractual coupon, which explains several tax adjustments below.

Revenue assets: taxable unrealised results and equity movements

For revenue assets at fair value through profit or loss, all recognised profit-and-loss gains or losses are taxable or deductible even if unrealised. Annex 2 presumes held-for-trading assets are revenue assets. Available-for-sale gains and losses left in equity are not taxed or deducted then; cumulative amounts become taxable or deductible on transfer to profit and loss at derecognition. Impairment, relevant reversals and foreign-exchange results recognised in profit and loss receive their stated tax treatment. For equity securities, an impairment reversal remains in equity and is taxed only when disposed of.

For held-to-maturity assets and loans on revenue account, taxable interest follows the effective-interest amount in the accounts, including the relevant amortised components. The taxpayer generally need not reverse those accounting amounts.

Capital assets and debt-security exceptions

A taxpayer claiming capital treatment should submit an asset list for the Comptroller’s determination. Agreed capital gains and losses are neither taxed nor deducted, and fair-value or impairment amounts in profit and loss require adjustment. A later request to treat an asset as revenue normally changes treatment prospectively. The Comptroller can nevertheless tax a realised gain previously accepted as capital if evidence at realisation shows revenue character.

Capital-account debt securities still produce taxable contractual/coupon interest rather than effective-interest book income. Negotiable certificates of deposit follow section 10(12). Discounts or premiums on capital-account debt securities are assessed at maturity or redemption under section 10(8A). Capital classification does not mean every receipt associated with an instrument is exempt.

Impairment and reversals

FRS 39 impairment replaces the former general/specific doubtful-debt provisioning framework described in the guide. Impairment of revenue financial assets is deductible and a reversal is taxable. No indexation adjusts the reversal for a change in tax rates; this also applies to writing back specific doubtful-debt provisions allowed before FRS 39. Capital-asset impairment remains subject to the capital exclusion.

Banks and finance companies: dated collective-impairment concessions

The guide refers to MAS Notices 612, 1005 and 811 issued on 11 March 2005. Entities lacking robust estimates or sufficient historical loan-loss data had to maintain collective impairment of at least 1% of gross loans and receivables after individual impairment. Subject to section 14G, a five-year tax concession began in the first accounting-adoption YA, with compliance expected by its end. Budget 2009, 2012 and 2015 extensions ultimately ran to YA 2019 or YA 2020 depending on year-end. Those dated endpoints should not be presented as a fresh 2026 concession.

Where an entity could calculate FRS 39 impairment, the whole revenue-asset amount was deductible. Additional collective impairment required on prudence grounds under the applicable MAS notice was also allowed, as described in the regime. Reversals of previously allowed amounts were taxable without indexation.

Genuine interest-free and below-market loans

For genuine interest-free loans, where there is no payment corresponding to the entries, disregard the accounting discount and notional interest income: the former is not deductible and the latter not taxable. This exception is for book entries, not a way to exclude actual interest payments.

For a below-market loan, accounting effective interest can recognise an initial discount and further income above a contractual rate, such as 2% against a 5% market rate. The guide taxes only contractual interest, so adjustments remove the additional book amounts. Annex 2 likewise describes contractual-rate expense treatment for these non-arm’s-length loans.

Financial liabilities and capital borrowings

Except for capital-accretion borrowings and convertible debt, tax generally follows FRS 39. Fair-value-through-profit-or-loss results are taxable or deductible even when unrealised; held-for-trading liabilities are presumed not to constitute capital accretion. Other eligible liabilities follow effective-interest expense.

For borrowing constituting accretion to capital, only contractual interest was allowed through YA 2007. From YA 2008, qualifying borrowing costs substituting for interest or reducing interest cost were also allowed under section 14(1)(a). A qualifying redemption discount or premium is deducted when actually incurred at maturity/redemption, based on redemption price minus issue price. This treatment also applies to debt exchangeable for another company’s shares.

Convertible debt: the complete S$100 example

Accounting separates debt convertible into the issuer’s own shares into liability and equity components. An embedded conversion option can create an accounting discount without any actual payment, and its capital/equity component is not deductible.

In the guide’s example, a bond is issued for S$100, redeemable for S$110. Initial liability fair value is S$95 and equity is S$5. Accounting amortises S$15, the difference between S$110 and S$95. If the redemption premium qualifies under section 14(1), tax allows only the actual S$10 premium, at the relevant redemption point, while the S$5 equity component is disallowed. Tax therefore does not simply deduct the full accounting amortisation.

Hedges follow the underlying revenue or capital item

For a hedge of a revenue asset or liability, such as a trade receivable, unrealised hedge gains are taxable and losses deductible. Where the underlying item is capital, unrealised results are neither taxed nor deducted and the accounts require tax adjustment. Annex 2 separately notes that accounting treatment can differ where hedge-accounting conditions are met; the underlying tax character still matters.

Interest adjustment and the asset-value election

Interest and substitute borrowing costs relating to non-income-producing assets are not deductible. Direct tracing may identify the relevant funds; otherwise the Total Asset Method computes disallowed interest as the cost/value of non-income-producing assets divided by that of total assets, multiplied by interest expense. Before FRS 39, historical cost excluded depreciation, bad-debt provisions and valuation movements.

Under FRS 39 treatment, use the balance-sheet value of the relevant financial assets. A taxpayer may instead elect historical cost in writing with the return, tracking all historical asset costs separately and keeping supporting records. Apply that choice consistently. Moving later to the FRS 39 balance-sheet basis is irrevocable. A taxpayer remaining on the pre-FRS 39 tax regime uses historical cost. This valuation election is distinct from choosing the entire tax regime.

Transition and the five-year instalment condition

On initial adoption, instruments are classified and remeasured at fair value or amortised cost. Differences generally adjust opening retained earnings; available-for-sale differences instead enter a separate equity component until derecognition or impairment. Revenue-account opening-retained-earnings adjustments are taxed or deducted in the first FRS 39 tax YA. Available-for-sale amounts still in equity are not taxed or deducted in that first YA.

Tax transition also accounts for differences between previous book carrying amounts and prior tax-recognised amounts, for example receivables, premiums/discounts, upfront fees and deferred income. Additional transition tax can receive a five-year instalment plan only if the taxpayer moves to FRS 39 tax treatment no later than the fifth YA after first accounting adoption. A later move has no such concession. For a delayed move, determine adjustments at the first day of the annual period in which the tax regime is first applied.

Opting out, record conditions and compulsory movement

FRS 39 tax treatment is the default for adopters. To remain on the earlier regime, elect in writing with the return for the first adoption YA. A later move to FRS 39 tax treatment is irrevocable. The source expressly says the paragraph 5.2 requirements have legal force: furnish calculations explaining tax adjustments and retain supporting documents. The storage period may exceed ordinary statutory retention where an asset has not yet been disposed of.

Failure to comply forces a move from the YA of failure. Even if records later improve, the taxpayer cannot revert. A taxpayer not required to apply FRS 39, including relevant sole proprietors/partners or a company temporarily exempted by ACRA, continues under the earlier tax treatment described in the guide.

Annex 2 coverage, revision history and enquiries

The seven groups in Annex 2 are covered above: assets, impairment, interest-free/below-market loans, liabilities, hedges, transition and taxpayers not required to comply. Its summary does not eliminate the detailed qualifications in the main text.

Amendments in 2006 expanded transition adjustments; 2009 clarified capital debt receipts, borrowing costs and convertible debt; 2010 added hedges and asset valuation; 2012 and 2015 extended the bank concession. The 2023 revision identified FRS 109 replacement, updated MAS notice and statutory references, and clarified that FRS 39 TAM uses balance-sheet asset values. The current PDF is dated January 2026. It lists 1800-356 8622 for enquiries and retains the official source for checking the historical rules.