Calculate CPF contributions correctly for every employee in Singapore

CPF applies only to Singapore Citizens and Permanent Residents employed in Singapore. Work pass holders, including Employment Pass and S Pass holders, are not subject to CPF, and neither are foreigners on dependent or long-term visit passes. Before you run any calculation, confirm the employee's residency status. Getting this wrong in either direction creates real compliance problems: under-contributing exposes the employer to penalties, while deducting CPF from an ineligible employee creates a payroll error that has to be corrected. Once eligibility is confirmed, the next question is which rate table applies.

CPF contribution rates are not flat. They vary by the employee's age bracket and by the level of wages paid. Younger employees and their employers contribute at the highest rates, and those rates taper progressively as the employee moves through older age bands, reflecting the policy intent of making older workers less costly to employ. Wages are also split into two categories for CPF purposes: Ordinary Wages (OW), which are wages earned in the month they are paid (such as basic salary), and Additional Wages (AW), which are payments like bonuses or commissions that are not tied to a single month. Each category has its own ceiling, and the calculation method differs between them.

The Ordinary Wage ceiling caps the amount of monthly OW that is subject to CPF contributions. Wages paid in a month above that ceiling are not subject to CPF as Ordinary Wages. This matters most for higher-earning employees: if a salary exceeds the ceiling, only the portion up to the ceiling attracts contributions. Separately, there is an Annual Wage Supplement (AWS) ceiling that governs Additional Wages across the full year. The AW ceiling is calculated as the annual CPF wage limit minus the total OW already subject to CPF in that year, so an employee who earns a high ordinary salary throughout the year may have little or no AW ceiling remaining by the time a year-end bonus is paid.

Every CPF member has three accounts: the Ordinary Account (OA), the Special Account (SA), and the MediSave Account (MA). Total contributions are not deposited as a lump sum into one account. Instead, they are split across the three accounts according to allocation rates that also vary by age. Younger members see a larger share going to the OA, which can be used for housing, education, and investment. As members age, the allocation shifts progressively toward MediSave, reflecting higher anticipated healthcare needs. Employers and employees do not need to manage this split themselves; CPF Board applies the allocation automatically once the total contribution is submitted.

Employees who are newly granted Permanent Residency do not immediately contribute at the full citizen rate. For the first two years of PR status, both the employee and employer contribute at graduated, lower rates. This is sometimes called the SPR (Singapore Permanent Resident) graduated contribution rate. From the third year onward, full rates apply. Employers who miss this distinction and apply full rates from day one are technically over-contributing, which creates a refund process. Applying the wrong rate in the other direction, under-contributing, triggers a shortfall that must be made up with interest.