Enter each spouse’s income and reliefs, then move the shared items — Qualifying Child Relief, Parenthood Tax Rebate, Parent Relief — between the two columns and watch the family total. The lowest total wins.

Every line links to the IRAS page it comes from, and the calculator states the year of assessment it is working to.

Year of Assessment 2026 (income earned in 2025)

Resident tax rates from YA 2024
Chargeable incomeRate
$0 – $20,0000%
$20,000 – $30,0002%
$30,000 – $40,0003.5%
$40,000 – $80,0007%
$80,000 – $120,00011.5%
$120,000 – $160,00015%
$160,000 – $200,00018%
$200,000 – $240,00019%
$240,000 – $280,00019.5%
$280,000 – $320,00020%
$320,000 – $500,00022%
$500,000 – $1,000,00023%
> $1,000,00024%

Rates from IRAS