Your CPF is not one account, it is three, and each has a different job and a different interest rate. The Ordinary Account (OA) pays 2.5% and is for housing, education and some investments. The Special Account (SA) pays 4% and is for retirement. The MediSave Account (MA) also pays 4% and is for medical bills and insurance premiums. Since January 2026 the CPF wage ceiling is S$8,000 a month, and if you are 55 or below, 37% of your wages go into CPF, 20% from you and 17% from your employer.
From 1 July 2026 the SA and MA rate is 4% per annum, with the floor extended to 31 December 2026. If you are below 55, you earn an extra 1% on the first S$60,000 of combined balances, capped at S$20,000 from your OA. Understanding these basics makes every CPF decision easier.