Singapore Income Tax Calculator

What you actually pay on your income

Personal income tax in Singapore is charged on chargeable income, not on what you earned. Chargeable income is your total income for the year less the personal reliefs you qualify for. The rate table then applies in slices, so a higher income never pulls your whole income into a higher rate.

The first SGD 20,000 of chargeable income is not taxed at all. The next slice is taxed at 2%, then 3.5%, then 7%, and the rates climb in steps to 22%, 23% and finally the top rate of 24% on chargeable income above SGD 1,000,000. This table has applied since Year of Assessment 2024 and is the one IRAS uses for Year of Assessment 2026, which taxes what you earned in the preceding calendar year.

Working it out, in order

1. Add up your total assessable income for the calendar year — employment income, trade income, rent, and anything else that is taxable.
2. Deduct Earned Income Relief. It is SGD 1,000 if you were below 55 at the end of the year, SGD 6,000 from 55 to 59, and SGD 8,000 at 60 and above, and it can never exceed the earned income itself.
3. Deduct the other reliefs you qualify for.
4. Apply the personal income tax relief cap. Whatever you have claimed, total reliefs are capped at SGD 80,000 for each Year of Assessment.
5. Run the result through the resident rate table to get your gross tax.
6. Deduct any personal income tax rebate that has been announced for that Year of Assessment.

The thing people get wrong: reliefs are not a refund

A relief reduces your chargeable income, not your tax bill. Someone whose top slice is taxed at 7% saves seven cents of tax for every dollar of relief, not a dollar. That is why stacking reliefs is worth far less to a modest earner than it looks, and why the SGD 80,000 relief cap only ever bites on high incomes with several large claims.

The second misunderstanding is the rebate. A rebate is a percentage taken off the tax already computed, and it is announced Year of Assessment by Year of Assessment, not permanent. For Year of Assessment 2025 the rebate was 60% of tax payable, capped at SGD 200; for Year of Assessment 2024 it was 50%, capped at the same amount. Do not assume one exists this year until IRAS says so.

Why your Notice of Assessment may differ

Each relief has its own conditions, and several have their own sub-caps that a single "total reliefs" figure cannot capture. Relief for CPF contributions depends on the wage ceilings, relief for children depends on who claims it, and course fees and life insurance relief carry rules of their own.

Residency matters more than anything else. A non-resident is taxed on employment income at a flat 15% or at the resident rates, whichever produces more tax, and gets no reliefs at all. If your days in Singapore were near the boundary, work out your tax residency first — the answer changes the calculation completely.

Common questions

What is the difference between a Year of Assessment and a tax year? The Year of Assessment is the year in which you are assessed on the income of the preceding calendar year. Year of Assessment 2026 taxes what you earned in the calendar year before it.

Does the top rate of 24% apply to my whole income? No. Only the part of chargeable income above SGD 1,000,000 is taxed at 24%. Everything below it is taxed at the lower rates in the slices under it.

Is there a rebate this year? There is one only when it is announced, usually at the Budget. Do not build one into your own estimate unless IRAS has published it for that Year of Assessment.

Do I still pay if I earn very little? If your chargeable income after reliefs is within the first SGD 20,000 there is no tax to pay. You may still need to file if IRAS asks you to.

The rate table, the reliefs and any rebate are published by IRAS, which updates them after each Budget. Your Notice of Assessment from IRAS is the figure that counts.