Singapore Income Tax Calculator: Take-Home Pay YA 2025 (Resident Rates + CPF Under-55)

How Singapore resident income tax works

Singapore's resident income tax has 13 progressive slabs in YA 2025 starting at 0 percent below S$20,000 and rising through 2/3.5/7/11.5/15/18/19/19.5/20/22/23 percent to a top marginal rate of 24 percent above S$1,000,000. The slabs are intentionally finely-grained in the mid-income range to keep the effective rate gradual. For a typical middle-class earner the average rate is around 7 to 9 percent; only high earners above S$500,000 see effective rates above 17 percent. By international standards Singapore is one of the lowest income-tax jurisdictions for both individuals and corporates.

There are extensive reliefs that reduce taxable income: Earned Income Relief (S$1,000 standard), Spouse Relief (up to S$2,000), Qualifying Child Relief (up to S$4,000 per child), Working Mother's Child Relief (percentage of earned income), Course Fees Relief (up to S$5,500), and CPF Relief for voluntary contributions, among others. The calculator does not yet model reliefs other than SRS; for filers with significant relief entitlements, real tax can be substantially lower than shown. A relief overlay covering the main reliefs is on the roadmap.

CPF for citizens and permanent residents under 55

CPF is mandatory for Singapore citizens and permanent residents. The under-55 rate is 20 percent from the employee and 17 percent from the employer, totalling 37 percent of Ordinary Wages going into the worker's CPF accounts (Ordinary Account, Special Account, MediSave Account). The CPF Ordinary Wage ceiling is S$8,000 per month (S$96,000 per year) in 2025, scheduled to rise to S$8,500 in 2026 and S$9,000 in 2027. Above the ceiling, no CPF is deducted from Ordinary Wages.

The Additional Wage ceiling (for bonuses, commissions, and irregular payments) is a separate calculation: it is the difference between S$102,000 and the Ordinary Wages already contributed to in the year. This calculator does not model the Additional Wage ceiling because bonuses are typically irregular and worker-specific; salary-only earners hit the S$96,000 ceiling and that is the calculator's basis.

Workers aged 55 and over have different CPF rates that step down through age bands: 55-60, 60-65, 65-70, and over 70. The over-70 employee rate is just 5 percent. This calculator uses the under-55 rate; an age-aware overlay is on the roadmap.

CPF Relief and voluntary contributions

CPF contributions are not tax-deductible per se because they are mandatory and already excluded from taxable income at source. Voluntary CPF top-ups (e.g., voluntary contributions to Special Account or MediSave Account) within annual limits do attract tax relief under the CPF Cash Top-up Relief (capped at S$8,000 self and S$8,000 family members per year). The calculator does not model voluntary CPF top-ups separately; for filers making regular SA top-ups, real tax can be S$1,000 to S$2,000 lower than shown.

SRS as a voluntary deduction

The Supplementary Retirement Scheme allows tax-deductible contributions up to S$15,300 per year for citizens and PRs (S$35,700 for foreigners). Contributions reduce taxable income at the marginal rate; for a middle-income earner at the 11.5 percent slab, S$15,300 of SRS saves about S$1,760 in income tax. SRS funds can be withdrawn after age 62 with 50 percent of the withdrawal taxable, providing both a tax deferral and a partial permanent saving. SRS is one of the most attractive voluntary tax shelters for middle and higher Singapore earners.

What this calculator does not include

Non-resident tax rates (15 percent flat or progressive, no CPF). CPF rates for ages 55 and over. Additional Wage ceiling computation for bonus-heavy compensation. Earned Income Relief (S$1,000 standard for all earners). Spouse Relief, Qualifying Child Relief, Working Mother's Child Relief, and other family reliefs. Course Fees Relief. CPF Cash Top-up Relief for voluntary SA and MediSave contributions. NSman Relief for active reservists. Foreign Domestic Worker Levy Relief. Property tax (separate from income tax). For most salaried citizen/PR workers under 55, the calculator covers the dominant computation; eligible filers with reliefs should expect real tax to be lower than shown by up to a few thousand dollars depending on circumstances.

When this calculator is wrong by a lot

Three scenarios produce substantial differences from real take-home: workers over 55 (different CPF rates), foreigners on Employment Pass (no CPF, possibly different tax rates), and filers with substantial reliefs (Earned Income, Spouse, Child, CPF Top-up, etc.). For these cases, treat the calculator as a starting point and adjust for the missing pieces.