About

Go Home Early Singapore is a small set of free calculators for employees: monthly pay after CPF, and the income tax that follows for citizens, Permanent Residents and foreigners. It is an independent project. It is not run by, endorsed by or connected with the Inland Revenue Authority of Singapore (IRAS), the Central Provident Fund Board or any other government body.

Why this exists

The operator has handled pay, tax and payroll calculations for a small team firsthand. The calculators available gave different numbers for the same inputs and did not say where the numbers came from, so the figures had to be worked out again from the official pages. This site publishes that working, with the source and the check date next to each number.

Rates come from the source

CPF contribution rates and wage ceilings come from the CPF Board. Income tax rates, reliefs and the non-resident rule come from IRAS. The Sources and rates page lists each value, where it came from and the date it was last checked, and what could not be confirmed.

Checked against official examples

The calculations are tested against the worked examples on the official pages, hand calculations from the published tables, and an independent second implementation that agrees to the cent on every test case. The site is not released with a failing test.

Updates

CPF rates and ceilings are set each January and the tax rules can change with the Budget. When they do, the values and the checked dates are updated together. If you find an error, tell us.

Your numbers

Every calculation runs in your browser. What you enter is not sent to a server. See the privacy policy.