Project your CPF Retirement Account at 55 and estimate your CPF LIFE monthly payout from 65, based on your actual OA and SA balances rather than just one of them.
At age 55, CPF combines your Special Account balance with money from your Ordinary Account, up to your Full Retirement Sum, to form your Retirement Account. Anything above that amount stays in your Ordinary Account, where it remains accessible and doesn't affect your CPF LIFE payout. Many simpler calculators skip this step and look only at your Special Account, which understates the payout for anyone with a meaningful OA balance.
Your Full Retirement Sum also isn't fixed. CPF Board raises it most years, so the amount that applies to you depends on the year you actually turn 55, not today's figure. This calculator projects your Full Retirement Sum forward using CPF Board's historical growth rate of roughly 3.5% a year, and grows your Retirement Account with ongoing contributions the same way CPF does.
The contribution rates, allocation ratios, and wage ceilings used here are taken directly from CPF Board's published tables rather than third-party summaries, which sometimes disagree with each other and with CPF Board itself.