This technical note outlines common corporate tax compliance issues and the relevant treatment frameworks following a review of current IRAS administrative positions and taxpayer obligations.
1. Foreign Source Income Tracking
Under Singapore’s territorial basis of taxation, foreign-source income is taxable upon remittance to Singapore. Section 14(1) of the Income Tax Act disallows deductions for expenses incurred to derive foreign income where that income is not remitted in the same year, unless a liberalised carry-forward treatment is elected.
Companies must maintain a tracking schedule for unremitted foreign source income (FSI) and corresponding allowable expenses. Two computation methods are available:
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Direct Method: Requires detailed matching of expenses to specific foreign income by year.
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Indirect Method: Permits apportionment of allowable expenses against unremitted foreign income.
Failure to track such income and expenses results in reporting inaccuracies when remittance subsequently occurs.
2. Foreign Source Income Exemption (FSIE) Scheme
Certain categories of foreign-sourced income—dividends, branch profits, and service income—may qualify for tax exemption under the FSIE scheme provided all three conditions are satisfied:
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Subject to Tax: The income must have been subject to tax in the foreign jurisdiction. Tax incentives granted for substantive business activities do not disqualify the condition, provided supporting documentation (e.g., incentive certificates, dividend vouchers) is retained.
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Headline Tax Rate: The foreign jurisdiction’s highest corporate tax rate must be at least 15 percent at the time of remittance. Dividends sourced from entities resident in jurisdictions with headline rates below 15 percent, or from entities such as Labuan companies operating under special legislation, do not satisfy this condition.
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Beneficial Condition: The Comptroller must be satisfied that the exemption benefits the Singapore resident taxpayer.
Documentary evidence, including the foreign payer’s accounts for the financial year prior to the dividend payment showing positive current-year tax, must be maintained.
3. Foreign Exchange Differences
The tax treatment of forex differences depends on the nature of the underlying transaction. Forex differences arising from foreign currency bank accounts used for mixed purposes—such as loan repayments or investments—are generally capital in nature and neither taxable nor deductible.
For a Designated Bank Account (DBA) used solely for revenue transactions, forex differences are treated as revenue in nature. From Year of Assessment (YA) 2020, accounts with capital transactions below de minimis thresholds—not more than 12 transactions or total value not exceeding $100,000 per year—may retain DBA treatment. Exceeding these limits disqualifies the account from DBA treatment permanently.
4. Interest Expense Deductibility
Interest expenses are deductible only where incurred in relation to income-producing assets. Deductions are disallowed for:
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Interest on non-income producing assets (e.g., assets under construction, idle assets).
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Interest attributable to investments generating exempt or passive investment income (e.g., one-tier tax-exempt dividends, foreign dividends exempt under Section 13(8)).
Where a company funds an investment yielding exempt income, interest directly attributable to that investment, along with an apportioned share of common interest (typically under the total asset method), is non-deductible.
5. Provisions
Deductions for provisions are allowed only when a legal liability has crystallised. General provisions—including those for stock losses, unutilised leave, bonuses, or directors’ fees where no payment has been made—are not deductible. For unutilised leave, deduction is permitted in the year of approval where a formal payout policy exists; otherwise, deduction arises only upon utilisation (i.e., when payment is made on employee departure).
6. Capital Allowances
Capital allowance claims are subject to strict criteria. Common errors include:
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Claiming allowances on non-qualifying assets (e.g., cars with open market value exceeding $30,000, office renovation costs, free gifts).
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Exceeding the $30,000 annual cap on low-value assets costing less than $5,000.
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Incorrect computation under hire purchase arrangements (claiming on full cost inclusive of interest, rather than principal repayments).
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Failure to compute balancing allowance or balancing charge upon asset disposal or write-off.
7. Foreign Tax Credit
Foreign Tax Credit (FTC) may be claimed against Singapore tax payable on the same income, subject to the following conditions:
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The company must be a Singapore tax resident.
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The income must be subject to tax in Singapore.
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The company must be in a tax-paying position.
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Foreign tax must have been correctly paid in accordance with the relevant Avoidance of Double Taxation Agreement (DTA).
FTC is restricted to the lower of foreign tax paid or Singapore tax attributable to the foreign income. The time limit for making an FTC claim is four years from the end of the YA in which the income is assessed.
8. Transfer Pricing
Related-party transactions must comply with the arm’s length principle, with proper transfer pricing (TP) documentation maintained. Non-compliance may result in TP adjustments increasing taxable profits. From YA 2019, a five percent surcharge applies to the amount of such adjustments.
Full remission of the surcharge may be granted where taxpayers voluntarily disclose non-arm’s length transactions and make retrospective upward adjustments within two years of the tax return filing due date, provided no queries, audit, or investigation has been initiated by IRAS. Cooperativeness, proper documentation, and a good compliance record are required for remission.