CPF on Bonus (Additional Wage) Formula Explained, With Examples
Every cpf on bonus (additional wage) result comes from one formula. Once you understand what goes into it, you can sanity-check any figure you are given, whether by an employer, a bank, a teacher or another website.
The formula
AW ceiling = S$102,000 − (ordinary wage capped at S$8,000 × 12). CPF applies to the bonus up to that ceiling at the same percentage rates as ordinary wages.
What each input means
- Bonus / additional wage for the year (S$): the value you enter in the calculator.
- Monthly salary (S$): the value you enter in the calculator.
- Age (years): the value you enter in the calculator.
Example
For example, with these inputs:
- Bonus / additional wage for the year (S$): 15,000
- Monthly salary (S$): 5,000
- Age (years): 30
the calculator returns:
- Additional Wage ceiling left: S$42,000.00
- Bonus subject to CPF: S$15,000.00
- Employee CPF on bonus: S$3,000.00
- Employer CPF on bonus: S$2,550.00
- Bonus after CPF: S$12,000.00
How the result changes
The table keeps the other inputs at their example values and changes bonus / additional wage for the year (s$).
| Bonus / additional wage for the year (S$) | Additional Wage ceiling left | Bonus subject to CPF | Employee CPF on bonus | Employer CPF on bonus | Bonus after CPF |
|---|---|---|---|---|---|
| 15,000 | S$42,000.00 | S$15,000.00 | S$3,000.00 | S$2,550.00 | S$12,000.00 |
| 7,500 | S$42,000.00 | S$7,500.00 | S$1,500.00 | S$1,275.00 | S$6,000.00 |
| 11,250 | S$42,000.00 | S$11,250.00 | S$2,250.00 | S$1,912.50 | S$9,000.00 |
| 18,750 | S$42,000.00 | S$18,750.00 | S$3,750.00 | S$3,187.50 | S$15,000.00 |
| 22,500 | S$42,000.00 | S$22,500.00 | S$4,500.00 | S$3,825.00 | S$18,000.00 |
Why it matters
In Singapore, payslip maths decides how much you can save, invest and spend, and CPF takes a sizeable share before the money reaches your bank account. Knowing the numbers in advance makes salary negotiations, job switches and budgeting far less of a guess.
CPF distinguishes between ordinary wages, which are paid for work in the month such as basic salary and fixed allowances, and additional wages, such as annual bonuses and leave encashment. Ordinary wages are capped at S$8,000 a month from January 2026, while additional wages are capped by an annual ceiling of S$102,000 minus the ordinary wages already subject to CPF in the year.
The Central Provident Fund is Singapore's mandatory savings scheme for citizens and permanent residents. Contributions are shared between employee and employer and flow into the Ordinary Account for housing, education and investment, the Special Account for retirement, and MediSave for healthcare. Because the money is locked up for specific purposes, many people underestimate how much of their total pay it represents.
Payslips must be itemised, showing basic pay, allowances, overtime, deductions and CPF. Comparing a payslip against an independent calculation is the easiest way to catch mistakes, especially in the first month of a new job, after a pay rise, or when you cross an age band.
Related calculations
- Monthly to Hourly Rate Calculator: Converts a monthly salary into the hourly rate MOM uses for overtime and deductions.
- Daily Rate of Pay Calculator: Finds the daily rate of pay used for public holiday work, rest days and unpaid leave deductions.
- Pro-Rated Salary Calculator: Calculates salary for an incomplete month, such as when you join or leave mid-month.
- Salary Increment Calculator: Shows the new salary after a percentage raise and how much more you earn per year.
Use the CPF on Bonus (Additional Wage) Calculator to plug in your own numbers.
Run your own numbers: CPF on Bonus (Additional Wage) Calculator