Salary Increment in Singapore: 5 Mistakes to Avoid
Shows the new salary after a percentage raise and how much more you earn per year. The maths is not complicated, but a handful of errors come up again and again in this and related cpf & salary calculations. Here is what to watch for.
The Employment Act sets out how hourly and daily rates are calculated for overtime, public holiday work and salary deductions. These formulas use the monthly basic rate of pay rather than gross salary, which is why the numbers can look lower than a simple division of your salary by hours worked.
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.
1. Ignoring the graduated band below S$750
Employees earning between S$500 and S$750 pay a phased-in contribution, not the full rate.
2. Treating bonuses like ordinary wages
Bonuses are additional wages, subject to the annual S$102,000 ceiling minus ordinary wages already counted.
3. Applying CPF to the full salary above the ceiling
Only the first S$8,000 of monthly ordinary wages attracts CPF. Applying the rate to a S$10,000 salary overstates CPF by S$740 a month for those 55 and below.
4. Forgetting rounding rules
Total CPF is rounded to the nearest dollar and the employee share drops cents, so results can differ by a dollar from a simple multiplication.
5. Mixing up gross and basic salary
Overtime and many MOM formulas use basic salary, while CPF uses total ordinary wages including fixed allowances.
The correct method
New salary = current salary × (1 + increment ÷ 100).
For example, with these inputs:
- Current monthly salary (S$): 4,500
- Increment (%): 5
the calculator returns:
- New monthly salary: S$4,725.00
- Monthly increase: S$225.00
- Annual increase (12 months): S$2,700.00
Related calculations
- CPF Allocation Calculator (OA, SA, MA): Shows how each month's 37% CPF contribution is split between your Ordinary, Special and MediSave accounts by age group.
- Overtime Pay Calculator (MOM): Uses the Ministry of Manpower formula to work out the hourly basic rate and overtime pay for employees covered by Part IV of the Employment Act.
- 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.
The Salary Increment Calculator applies the formula consistently, so it is a quick way to double-check your own working.
Run your own numbers: Salary Increment Calculator