A Singapore payslip has one compulsory deduction and, for most people, no tax line at all. Employers do not operate PAYE withholding: they pay your full salary less the employee CPF share, report your earnings to IRAS on form IR8A, and you settle income tax separately the following year. That single fact reshapes cash-flow planning here, because your first tax bill arrives roughly sixteen months after you start earning and then repeats annually against income you have already spent. The CPF deduction itself is not a flat percentage of salary either: it splits your pay into Ordinary Wages and Additional Wages, applies a monthly ceiling to the former and an annual formula to the latter, and steps down through age bands from 55 onwards. This calculator separates the Ordinary Wage cap, the Additional Wage formula, the age-band rate, and the deferred tax liability so the monthly number and the eventual assessment both make sense.

Key Regulatory Parameters & Frameworks (YA 2026)

Rule 01

Ordinary Wage Ceiling and the Phase-In

Only the first tranche of monthly Ordinary Wages attracts CPF. The Ordinary Wage ceiling completed a multi-year phased increase and stands at SGD 8,000 a month from 1 January 2026, up from SGD 7,400 in 2025 and SGD 6,000 before the phase-in began. Wages above the ceiling attract no CPF from either side, which is why high earners see their effective CPF rate fall as salary rises.

Rule 02

Additional Wages and the SGD 102,000 Formula

Bonuses, commissions, and other Additional Wages are subject to CPF up to an Additional Wage ceiling calculated as SGD 102,000 less the total Ordinary Wages already subject to CPF for that calendar year. Someone at or above the Ordinary Wage ceiling all year uses SGD 96,000 of that figure on salary, leaving only SGD 6,000 of bonus within the CPF net. Employers reconcile this at year end and may recover over-contributed amounts.

Rule 03

Age-Banded Contribution Rates

For members aged 55 and below the employee share is 20% and the employer share 17%, a combined 37%. The rates step down in bands above 55, and those bands have themselves been rising year by year under legislated increases for older workers, so the rate for a 58-year-old in one year is not the rate that applied the year before. Rates fall furthest above 70, where the employee share drops to 5%.

Rule 04

Who Is Actually In Scope

CPF is mandatory only for Singapore Citizens and Permanent Residents in employment. Employment Pass, S Pass, and Work Permit holders are excluded entirely, and employers may not contribute to CPF for them. A new Permanent Resident and their employer contribute at graduated rates for the first two years of PR status, with the option to jointly apply to contribute at full rates immediately.

Rule 05

No Withholding, But Employer Reporting Is Mandatory

Employers file form IR8A for each employee, and those with five or more employees must submit electronically under the Auto-Inclusion Scheme, which pushes the figures directly into your tax return. Appendix 8A covers benefits in kind such as housing and cars, Appendix 8B covers gains on share options and share awards, and form IR8S covers excess CPF contributions. Because the data arrives at IRAS automatically, most employees receive a No-Filing Service notice or a Direct Notice of Assessment rather than filing anything.

Example Calculation: Mid-Level Engineer

Scenario Context: Singapore Citizen, age 32, earning SGD 10,000 gross per month (SGD 120,000 annually), with no bonus and no reliefs beyond Earned Income Relief.

Calculation Stage	Computed Value
Annual Gross Salary	SGD 120,000
Ordinary Wages subject to CPF (capped at SGD 8,000 / month)	SGD 96,000 of the SGD 120,000
Employee CPF at 20% of the capped wage	SGD 1,600 / month, SGD 19,200 annually
Employer CPF at 17% (paid on top, not deducted)	SGD 1,360 / month, SGD 16,320 annually
Less Earned Income Relief (under age 55)	SGD 1,000
Chargeable income	SGD 99,800
IRAS progressive tax: SGD 3,350 on the first SGD 80,000 plus 11.5% on SGD 19,800	SGD 5,627

Final Deducted Result:Take-home pay of approximately SGD 95,173 a year, around SGD 7,931 a month before the tax bill is actually paid. Note the timing: the SGD 5,627 is assessed in the following Year of Assessment and payable then, so monthly cash in hand is closer to SGD 8,400 until the notice of assessment arrives. Total employer cost is SGD 136,320 once the employer CPF share is counted.

Frequently Asked Questions (FAQ)

Is CPF deducted from my bonus?▼

Yes, but only up to the Additional Wage ceiling, which is SGD 102,000 less the Ordinary Wages already subject to CPF that calendar year. If your monthly salary sits at or above the SGD 8,000 Ordinary Wage ceiling for all twelve months, SGD 96,000 is used up and only SGD 6,000 of bonus attracts CPF. Everything above that is paid to you in full, which is why bonus months can produce a much higher net percentage than you expect.

Why is no income tax deducted from my monthly pay?▼

Singapore does not operate PAYE. Your employer withholds only CPF and reports your income to IRAS after the year ends, and IRAS then issues an assessment. The practical consequence is a lag: income earned in 2025 is assessed in Year of Assessment 2026 and payable during 2026. Many people use the GIRO interest-free instalment plan to spread it over up to twelve months rather than paying the lump sum in one go.

How does my pass type affect CPF?▼

Only Citizens and Permanent Residents contribute. Employment Pass, S Pass, and Work Permit holders are outside the CPF Act altogether, and employers are prohibited from making CPF contributions for them. Employers of foreign workers on S Passes and Work Permits instead pay a foreign worker levy, which is a cost to the employer rather than a saving credited to the employee, so a foreign hire receives no equivalent retirement contribution.

Does my employer have to withhold anything if I leave Singapore?▼

Yes. Under the tax clearance rules an employer must file form IR21 at least one month before a non-Singapore-Citizen employee ceases employment or leaves Singapore for more than three months, and must withhold all monies due, including final salary, leave pay, and gratuity, until IRAS issues clearance or thirty days have passed. Plan for this in your final month, because the withheld amount can be substantial.