CPF
CPF Special Account (SA)
The retirement-focused CPF account earning a 4% floor, locked away to compound until age 55.
What it is
In plain language.
The Special Account is built for retirement. It earns a government-guaranteed minimum of 4% per year, a meaningfully higher floor than the Ordinary Account, in exchange for being far less accessible.
SA savings are largely untouchable until you reach 55, when they are used to form your Retirement Account. This forced lock is the point: it lets the 4% floor compound for decades on money you cannot easily spend.
Note that from 2025 the Special Account is closed once a member turns 55. At that point SA savings transfer to the Retirement Account up to your Full Retirement Sum, and any excess goes to the OA. The SA matters most during your working years before 55.
How it works
In Singapore, in practice.
A portion of every monthly CPF contribution is allocated to the SA, with the share rising as you move through your 30s, 40s, and early 50s. You can also voluntarily top it up via the Retirement Sum Topping-Up scheme.
The SA earns the higher of 4% or a pegged formula, tax-free. The bonus interest on combined balances applies here too, so SA dollars within the first $60,000 can earn an effective 5%.
Note that new investing from the SA under CPFIS-SA was closed from January 2024, so the SA can no longer be invested. Under the CPF Investment Scheme only Ordinary Account savings (above the first $20,000) are investable. The high 4% guaranteed floor is one reason many members simply let the SA compound.
Run the numbers
See it in your own figures.
See what investing a fixed amount here every month could grow to, at an illustrative return.
What regular investing could grow to
Investing a fixed amount every month, compounding at an illustrative return. Projected, not guaranteed.
Where it sits
Its place in the instrument map.
A sound plan is built in layers, from a guaranteed base up to small, high-risk satellites. This is the role CPF Special Account (SA) plays, and the layers around it.
Small, high-risk positions you could afford to lose entirely.
Direct stocks and REITs held for long-run growth.
Funds, ETFs, and bonds that spread risk across many holdings.
Government-backed income and the SRS tax wrapper.
Guaranteed and liquid: your CPF base and emergency cash sit here.
The trade-offs
What it does well, and what to watch.
Good for
- Long-horizon savers who value a guaranteed 4% floor
- People comfortable locking money away until 55 for compounding
- Those building toward the Full Retirement Sum early
Watch outs
- Money in SA is effectively locked until 55 and cannot be used for housing or emergencies.
- From 2025 the SA closes at 55, so it is a working-years account, not a lifelong one.
- Topping up SA via RSTU is irreversible. The cash is committed to retirement and cannot be taken back.
In the market
What this looks like.
Real Singapore examples, shown to make the instrument concrete. These are illustrative, not endorsements.
How it connects
Instruments that work with this.
CPF Ordinary Account (OA)
The CPF account you can use for housing, insurance, and approved investments, earning a guaranteed 2.5% floor.
Full breakdown CPFCPF Retirement Account (RA) & Retirement Sums
The account created at 55 from your OA and SA, sized to the Basic, Full, or Enhanced Retirement Sum and earning a 4% floor.
Full breakdown CPFCPF Top-Ups (RSTU & MediSave)
Voluntary top-ups to your SA/RA or MediSave that boost retirement and health savings at a 4% floor, with potential tax relief.
Full breakdown CPFCPF MediSave Account (MA)
Your dedicated healthcare savings account, earning a 4% floor for hospital bills, MediShield Life, and approved premiums.
Full breakdownSources
Where the facts come from.
- SA guaranteed floor interest rate of 4% per yearSingaporeConfig.cpf.cpfInterestRates.sa
- Extra interest on combined balances applies to SASingaporeConfig.cpf.cpfInterestRates.extraInterestFirst30k
- Age-banded SA allocation of monthly contributionsSingaporeConfig.cpf.cpfContributionRates
- CPFIS-SA closed to new investments from January 2024SingaporeConfig.cpfis.saSuspendedSince
- Special Account closure from age 55 and SA-RA transferhttps://www.cpf.gov.sg/member/retirement-income/retirement-withdrawals
See where CPF Special Account (SA) fits your own plan.
This is educational, not advice. When you want a detailed look at how this fits your situation, a licensed adviser will map it to your income, CPF, and goals.