About Kiasu Kit
Free, plain-language calculators and guides for life in Singapore.
Who we are
Kiasu Kit is an independent site built in Singapore. It is not affiliated with any government agency.
We build the tools we wanted ourselves: quick answers to questions like “how much CPF comes off my pay” or “which leave days give the longest break”.
How we calculate
Rates and rules come from official sources: IRAS for tax, CPF Board for CPF, MOM for overtime and public holidays, HDB and MAS for home loans, HealthHub and ActiveSG for Healthpoints.
The calculators follow the formulas those agencies publish.
Results are estimates for typical cases. Your actual bill or payout can differ, for example if you have reliefs or income types the calculator doesn’t ask about.
Your privacy
What you type into the calculators stays in your browser, and you don’t need an account. See the privacy policy for details.
Spotted a mistake?
Rules change often. If a number looks wrong, tell us.