CPF Special Account Interest Calculator
Projects Special Account growth at the 4% floor rate.
Result
- Projected SA balance
- S$128,436.20
- Interest earned
- S$44,436.20
How to use the cpf special account interest calculator
- Enter the current sa balance (S$).
- Enter the monthly contribution (S$).
- Enter the years.
- Enter the interest rate (%).
- The results update as you type, or press Calculate.
- Read the projected sa balance first, then the supporting figures below it.
Formula
Future value with monthly compounding: B(1+r)^n + m((1+r)^n − 1)/r.
Worked example
For example, with these inputs:
- Current SA balance (S$): 30,000
- Monthly contribution (S$): 300
- Years: 15
- Interest rate (%): 4
the calculator returns:
- Projected SA balance: S$128,436.20
- Interest earned: S$44,436.20
Background
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.
Total compensation in Singapore is more than the number on your offer letter. Employer CPF, variable bonuses, the Annual Wage Supplement (often called the 13th month) and benefits all add value, and comparing offers on take-home pay alone can hide meaningful differences.
Frequently asked questions
How does the cpf special account interest calculator work?
It applies this formula: Future value with monthly compounding: B(1+r)^n + m((1+r)^n − 1)/r.
Are these figures exact?
They follow the published CPF and MOM formulas, but your employer's payroll may round slightly differently or include allowances in a different way. Your payslip is the final reference.