Moving into a higher tax band costs less than many people think

“If I take the promotion, I go into the next tax bracket and lose it all in tax.” It is one of the most persistent money myths, in Singapore as elsewhere, and it is wrong. Singapore’s resident income tax is progressive by slices. A higher rate applies only to the part of income that falls inside the higher band, never to the income below it.

This guide walks through the rate table IRAS publishes for YA 2024 onwards, which applies to YA 2026, shows the arithmetic with real figures and explains the difference between the income on your payslip and the income the rates are applied to.

Chargeable income is not your salary

The rate table is applied to chargeable income. To get there, start with your total income, deduct allowable expenses and approved donations to reach assessable income, and then deduct your personal reliefs. What is left is chargeable income.

The distinction matters beyond tax. Several government schemes use assessable income as a test, including the GST Voucher and the Assurance Package Cash payment scheduled for December 2026, so it is worth knowing which number is which on your Notice of Assessment. The reliefs themselves, and the S$80,000 cap on them, are covered in why some tax reliefs stop counting once you reach S$80,000.

The resident rate table

IRAS publishes the resident rates as a series of bands. The third column below adds up the tax on each full band so you can find any total quickly.

Source: IRAS, Individual Income Tax rates. Cumulative column calculated from IRAS’s band amounts.

A worked example: crossing into the 11.5% band

Take two illustrative residents. Mei Ling has chargeable income of S$80,000. Raj has S$85,000, after a pay rise that pushed him across the S$80,000 line.

Illustration with invented names. Assumes tax residency and no rebate; averages rounded to one decimal place.

Raj’s extra S$5,000 cost him S$575 in tax and left him S$4,425 better off. His average rate on all his chargeable income is still below 5%, even though his top slice is taxed at 11.5%. The “bracket” only ever applies to the top slice.

A higher rate applies only to the part of income inside the higher band, never to the income below it.

Marginal rate and average rate

Two numbers are worth keeping apart. The marginal rate is the rate on your next dollar: 11.5% for Raj. The average rate is total tax divided by chargeable income: 4.6% for Raj. The marginal rate is what matters when you weigh a bonus, a side income or a relief. A S$1,000 relief, for instance, saves Raj S$115 in tax but would have saved Mei Ling only S$70, because her top slice is taxed at 7%.

That is also why a relief or a voluntary contribution can be worth very different amounts to two people who pay in the same sum.

What about a tax rebate this year?

Personal income tax rebates are announced in a Budget for a particular Year of Assessment, and they are not automatic every year. IRAS’s rebate page lists a rebate of 50% of tax payable, capped at S$200, for YA 2024, and 60% of tax payable, capped at S$200, for YA 2025. The page, last updated on 11 August 2026, lists no rebate for YA 2026. Readers should therefore not assume one when estimating this year’s bill, and should check the IRAS page rather than social-media summaries.

Good to know

These rates are for tax residents. For non-residents, employment income is taxed at the higher of a flat 15% or the resident progressive rates, and most other income at 24%. Generally, a foreigner who stays in Singapore for more than 183 days in a year is treated as a tax resident.

How the bill is collected

Singapore does not withhold income tax monthly from most salaries. IRAS issues a Notice of Assessment after you file, and the tax can be paid in one go or by GIRO in instalments. Knowing roughly what your bill will be, using the table above, helps you set aside the amount through the year rather than meeting it all at once.

Who this matters for, and what to check

• Anyone weighing a raise or overtime: only the extra income is taxed at the higher rate.
• Anyone near a band edge: a relief is worth its amount times your marginal rate.
• Anyone budgeting for YA 2026: no personal tax rebate is listed by IRAS for this year.
• Anyone checking eligibility for a support scheme: use assessable income, not chargeable income or salary.
• Retirees with part-time work: Earned Income Relief from age 55 can bring chargeable income down significantly.

The takeaway

Moving into a higher band never makes you poorer. Each rate in Singapore’s resident table touches only the income inside its own band, so the cost of crossing a line is the higher rate on the extra slice alone. Work out your chargeable income, read the table from the top, and you have a reliable estimate of the bill.