CPF contributions are calculated based on your monthly gross income and age group. There are 8 age brackets, each with different employee and employer contribution rates. Your income is subject to CPF contributions up to the current income ceiling, which rose in stages from $6,000 to $8,000 between September 2023 and January 2026 following Budget 2023. SimplyCPF handles all these variables automatically. Just enter your income and birth date to get your exact contribution amounts.

CPF contribution rates vary by age group. For employees aged 55 and below, the total contribution rate is 37% (20% employee + 17% employer). Rates step down for older age groups: above 55 to 60 (34% total), above 60 to 65 (25% total), above 65 to 70 (16.5% total), and above 70 (12.5% total). The allocation across accounts also changes with age: older workers see more allocated to MediSave rather than the Ordinary Account, and from 55 the middle share goes to the Retirement Account because the Special Account no longer receives contributions. Rates shown are those effective 1 January 2026. Use the calculator to see the exact rates for your age group.

The CPF income ceiling rose from $6,000 to $8,000 in stages between September 2023 and January 2026. If your monthly income is above the old ceiling of $6,000, more of your income becomes subject to CPF contributions as the ceiling increases. This means your employee CPF contribution goes up and your take-home pay decreases slightly, but your total CPF savings (including employer contributions) increase. SimplyCPF's ceiling comparison feature shows you the exact dollar impact on both your take-home pay and your retirement savings.

CPF contributions are distributed across three accounts: the Ordinary Account (OA) for housing, insurance, investment, and education; the Special Account (SA) for retirement and retirement-related investments; and the MediSave Account (MA) for healthcare and medical insurance. The distribution varies by age: younger workers have more allocated to OA, while older workers see more going to SA and MA. The OA earns 2.5% p.a. (floor rate), while SA and MA earn a minimum of 4% p.a. with the potential to earn more when market rates are higher.

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No sign-up or login is required. SimplyCPF is completely free and ungated. You can start calculating your CPF contributions immediately without creating an account or providing any personal information.

CPF interest rates vary by account type. The Ordinary Account (OA) has a fixed floor rate of 2.5% per annum. The Special, MediSave, and Retirement Accounts (SMRA) have their rates pegged to the 12-month average yield of 10-year Singapore Government Securities (SGS) plus 1%, with a minimum floor rate of 4% per annum. You always receive the higher of the pegged rate or the floor rate.

The floor rate is the minimum guaranteed interest rate your CPF accounts will earn regardless of market conditions. For SMRA accounts, the pegged rate is calculated as the 12-month average of 10-year SGS yield plus 1%. When the pegged rate falls below the floor rate (4%), you receive the floor rate instead. This ensures your CPF savings continue to grow even during periods of low interest rates.

Your SMRA (Special, MediSave & Retirement Accounts) earns more than 4% when the pegged rate exceeds the floor rate. The pegged rate is calculated as the 12-month average of 10-year Singapore Government Securities (SGS) yield plus 1%. When this calculated rate is higher than the 4% floor, you receive the higher pegged rate. This allows your CPF savings to benefit from higher market interest rates.

The 10-year SGS yield directly affects the interest rate for your Special, MediSave, and Retirement Accounts (SMRA). The SMRA interest rate is pegged to the 12-month average of the 10-year SGS yield plus 1%. When SGS yields are high, your SMRA earns more. When SGS yields are low and the calculated rate falls below 4%, the floor rate of 4% applies to protect your savings. This pegging mechanism ensures your CPF interest rates reflect market conditions while maintaining a safety net.

No. SimplyCPF is an independent tool and is not affiliated with, endorsed by, or officially connected to the Central Provident Fund Board (CPF Board), Ministry of Manpower (MOM), or any other government agency. However, all contribution rates and income ceiling data are sourced directly from CPF Board publications. The calculation logic is open-source and fully verifiable on GitHub.

SimplyCPF is an open-source project released under the MIT licence. All contributions are welcome. Feel free to clone or fork the repository on GitHub and create a pull request. The project also provides a Developer API with 12 endpoints for programmatic access to CPF calculations. Visit the developer documentation for details.