The CPF Special Account (SA) is the retirement-savings account of members below 55. It receives a rising share of each month’s contribution as a member ages, earns 4% a year plus extra interest, and at 55 is folded into the Retirement Account.

Updated Published 4 min read CPF
Singapore · Q4 2026 · Special Account interest
4%
floor rate
With extra interestup to 5%
Share of contribution · 35 and below16.2%
Share · above 50 to 5531.1%
Closes at55 (since 2025)
SA interest rate4%1 Oct – 31 Dec 2026
Max with extra interest5%on the first SGD 60,000 combined
Allocation · 35 and below16.2%of each contribution
Allocation · above 50 to 5531.1%of each contribution
Top-up ceilingSGD 220,400Full Retirement Sum, 2026
Floorto 31 Dec 20274% legislated floor

Key takeaways

  • SA savings earn 4% a year — the same as the MediSave and Retirement Accounts and above the 2.5% on the Ordinary Account — plus 1% extra on the first SGD 60,000 of combined balances for members below 55.
  • The share of each contribution that goes to the SA rises with age: 16.2% at 35 and below, 31.1% from above 50 to 55.
  • Cash top-ups to the SA under the Retirement Sum Topping-Up scheme are allowed up to the Full Retirement Sum (SGD 220,400 for the 2026 cohort) and earn tax relief of up to SGD 8,000 a year.
  • Since 2025 the SA closes when a member turns 55: savings move to the Retirement Account up to the FRS and any remainder to the Ordinary Account.
  • SA savings above SGD 40,000 can be invested under the CPF Investment Scheme; the first SGD 40,000 stays in the account.
Definition

What the Special Account is for

Of the three accounts a working member holds, the SA is the one earmarked purely for retirement. It cannot be used for housing or education, which is why it carries the higher rate. Contributions are split by the CPF Board’s allocation ratios for the member’s age band, and the split tilts towards the SA as retirement approaches.

Base interest4%Pegged to the 12-month average 10-year SGS yield plus 1%, with a 4% floor extended to 31 Dec 2027.
Extra interest+1%On the first SGD 60,000 of combined OA, SA and MA balances (at most SGD 20,000 from the OA). Credited to the SA.
Allocation at 35 and below16.2%Of a 37% contribution. The OA takes 62.2% and MediSave 21.6% at that age.

Queries for an “SA cap” usually mean the top-up ceiling: voluntary cash into the SA stops at the Full Retirement Sum, SGD 220,400 for members turning 55 in 2026. There is no cap on the balance itself, which keeps compounding until 55.

Worked example

How a SGD 5,000 salary is split, by age

On a SGD 5,000 monthly wage the combined contribution is SGD 1,850 (37%). The allocation ratios decide how much of it reaches the SA each month.

Age bandSA shareTo SATo OATo MediSave
35 and below16.2%SGD 300SGD 1,150SGD 400
Above 35 to 4518.9%SGD 350SGD 1,050SGD 450
Above 45 to 5021.6%SGD 400SGD 950SGD 500
Above 50 to 5531.1%SGD 575SGD 750SGD 525

A year of interest on SGD 50,000 in the SA

Base at 4%SGD 2,000
Extra 1% on the first SGD 60,000SGD 500
Total · effective rateSGD 2,500 · 5.00%

Assumes the SA is the member’s only CPF balance, so the whole extra-interest tier applies to it. With OA and MediSave balances the SGD 60,000 tier is shared across accounts.

What it means for you

Where the SA shows up before 55

Retirement projectionCPF calculator
Because the SA compounds at 4% and is never drawn for housing, it is usually the fastest-growing account in a projection to 55.
Cash top-ups earn tax relief and count towards reaching the FRS before 55; the tracker shows how far a balance is from the cohort sum.
SA money above SGD 40,000 may be invested under CPFIS-SA in a narrower product list than the OA; the guaranteed 4% is the benchmark any investment has to beat.
The SA balance is the first source for the Retirement Account. Whatever exceeds the FRS after the transfer goes to the OA and becomes withdrawable.
Mandatory SA contributions are part of CPF Relief; cash top-ups add up to SGD 8,000 of relief a year, all within the SGD 80,000 cap on total reliefs.
Common misconceptions

Five things people get wrong

The SA can be used for a flat.
Only Ordinary Account savings can be used for housing. The SA is reserved for retirement and, above SGD 40,000, approved investments.
A member keeps an SA for life.
Since 2025 the SA closes at 55. Savings go to the Retirement Account up to the FRS and the remainder to the OA.
There is a cap on how much the SA can hold.
The balance is uncapped. Only voluntary cash top-ups are limited, at the Full Retirement Sum.
SA interest is 2.5%.
That is the OA rate. The SA earns 4%, and up to 5% on the first SGD 60,000 with extra interest.
Transferring OA to SA can be reversed.
An OA-to-SA transfer is one-way; the money stays in the SA until 55. CPF Board states this before every transfer.
Sources: CPF Board

This page is provided for educational and informational purposes only. It does not constitute financial advice. All figures and worked examples are estimates for illustrative purposes, are subject to change, and do not reflect any individual’s circumstances. Always refer to the CPF Board and seek independent professional advice before making any financial decisions.