Non-Resident Income Tax in Singapore: 5 Mistakes to Avoid

Updated 5 Oct 2026 in Tax & GST

Non-resident employees pay the higher of 15% flat or progressive resident rates on employment income, without personal reliefs. The maths is not complicated, but a handful of errors come up again and again in this and related tax & gst calculations. Here is what to watch for.

You are generally a tax resident if you are a citizen or PR who normally lives here, or a foreigner who has stayed or worked in Singapore for at least 183 days in the calendar year. Non-residents do not get personal reliefs and are taxed differently, which is why residency status matters so much for expatriates.

IRAS issues a notice of assessment, usually from April onwards, and tax is due within a month, although most people opt for interest-free GIRO instalments. Estimating your bill early means you can budget for it instead of being surprised.

1. Ignoring the relief cap

Total personal reliefs are capped at S$80,000 a year.

2. Forgetting reliefs

Earned income relief, CPF relief and other reliefs reduce chargeable income before the rates apply.

3. Using last year's rates

Rates and rebates change in the Budget, so check the year of assessment.

4. Applying the top rate to all income

Singapore tax is progressive: each band is taxed at its own rate, so your effective rate is well below your marginal rate.

5. Assuming non-residents pay resident rates

Non-resident employment income is taxed at the higher of 15% or resident rates, without reliefs.

The correct method

Tax = max(15% × employment income, resident tax on the same income).

For example, with these inputs:

the calculator returns:

Related calculations

The Non-Resident Income Tax Calculator applies the formula consistently, so it is a quick way to double-check your own working.

Run your own numbers: Non-Resident Income Tax Calculator

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