CPF Top-Up Singapore 2026: SA, RA and MediSave — Which Account and When

Why Topping Up Your CPF Is One of the Highest-Return Moves Available

CPF accounts are not just mandatory savings. For Singaporeans with the flexibility to make voluntary top-ups, the Special Account, Retirement Account, and MediSave Account collectively offer a guaranteed 4% return — in a near-zero-risk structure backed by the Singapore Government.

Compare that to a fixed deposit at a local bank (typically 2.0–3.0% for short tenors in 2026), or to CPF’s own Ordinary Account at 2.5%. The interest rate gap compounds significantly over a decade or two.

The landscape changed in January 2025 when the Special Account was closed for members aged 55 and above who had met the Full Retirement Sum. If you are below 55, you still have an active SA — and voluntary top-ups to it remain open. If you are 55 or older, your retirement savings now sit in a Retirement Account, which you can top up directly.

This guide covers all three accounts — SA, RA, and MA — their top-up mechanics, the 2026 limits, the tax relief rules, and a worked SGD example so you can see the numbers in action.

RSTU: Topping Up Your SA (Below Age 55)

If you are below 55, you still have a Special Account. The RSTU scheme lets you top it up with cash — and every dollar you add earns 4% per annum (plus up to 1% extra on the first $60,000 of combined CPF balances, capped at $20,000 for OA).

How Much Can You Top Up?

The cap is the current year’s Full Retirement Sum (FRS) minus your existing SA and OA balances. In 2026:

For SA top-ups, the cap is FRS ($220,400) minus your combined OA+SA balances. Once your SA balance reaches the FRS (or your combined OA+SA reaches FRS), further RSTU top-ups to SA are not allowed — but you can still do Voluntary Contributions.

Tax Relief for SA Top-Ups

Cash top-ups to your own SA qualify for income tax relief of up to $8,000 per calendar year. This limit is shared across your SA/RA and MA top-ups combined — so if you top up $5,000 to SA and $3,000 to MA, you claim $8,000 in total, not $16,000.

You can also top up your family members’ SA — parents, parents-in-law, grandparents, spouse, and siblings. This earns a separate tax relief of up to $8,000 per year (provided the recipient meets the income conditions).

For the full tax relief mechanics, see our SRS Tax Relief guide and the IRAS website — the tax relief rules are covered in a separate article (R2 in our retirement series).

MediSave Top-Up: The Often-Overlooked Account

Most CPF guides focus on SA and RA top-ups because of the tax relief angle. But the MediSave Account is equally worth topping up — particularly for members approaching or past the BHS.

Basic Healthcare Sum (BHS) 2026: $79,000

Your MA is capped at the Basic Healthcare Sum. In 2026, the BHS is $79,000 for members aged 65 and below. Once you reach this cap, any mandatory contributions that would have gone to MA are instead channelled to your OA and SA (or RA after 55).

You can top up your MA at any time, up to the BHS. Cash contributions to MA also qualify for the tax relief (sharing the $8,000 combined cap with SA/RA top-ups).

New in 2026: Matched MediSave Scheme (MMSS)

Starting 1 January 2026, Singapore introduced the Matched MediSave Scheme. Members aged 55 to 70 with lower MediSave savings receive matching grants of up to $1,000 per year on voluntary cash top-ups to their MA. The matching runs for five years (2026–2030).

Eligible members will be notified by CPF Board via email or letter. If you fall in the 55–70 age range and have received a notification, prioritising your MA top-up (up to $1,000 matched) is a straightforward way to earn an instant 100% return on that portion.

What Happens If Your MA Exceeds BHS?

Excess contributions above the BHS cannot stay in MA. Any overshoot is redirected to OA (for members below 55) or OA/RA (for members 55 and above). This is why topping up MA only makes sense when you are below the BHS cap.

Worked SGD Example: Mr Lee, Age 38

Mr Lee is a 38-year-old Singaporean with the following CPF balances:

His top-up options for 2026:

• SA RSTU: He can top up SA up to FRS ($220,400) minus his OA+SA balance ($75k + $55k = $130k). That means he can top up $90,400 to SA in total. He chooses to add $8,000 this year for the full tax relief.
• MA top-up: His MA is at $52,000; BHS is $79,000. He can top up $27,000 more. However, if he tops up MA, that shares the $8,000 tax relief cap with his SA top-up. He decides to split: $5,000 to SA + $3,000 to MA = $8,000 tax relief claimed.

Impact of $8,000 SA Top-Up (Annual, for 10 Years)

After 10 years, Mr Lee’s $80,000 in top-ups has grown to approximately $96,049 — an additional $16,049 from interest alone. In an OA, the same $80,000 would have grown to about $90,286 (earning $10,286 in interest). The SA earns an additional $5,763 in interest over the 10-year period.

Note: All figures are illustrative. Actual growth depends on the timing of top-ups within the year and any changes to CPF interest rates. Top-up amounts that attract MMSS matching grants do not receive income tax relief in the year matched.

Which Account Should You Top Up First? A Decision Framework

Step 1: Are You Aged 55–70 and Eligible for MMSS?

If CPF Board has notified you, top up your MA first — up to the matched $1,000 per year. An immediate 100% return on matched funds beats almost everything else.

Step 2: Is Your MA Below the BHS ($79,000)?

If your MA is significantly below the BHS and you are below 55, consider topping it up. It earns the same 4% as your SA, and the medical coverage buffer is valuable. Weigh this against SA: both earn 4%, but SA compounds toward retirement income, while MA funds healthcare expenses.

Step 3: Are You Below 55 with SA Space Below FRS?

RSTU to SA is the default high-value move for working Singaporeans below 55. The 4% compounding at this life stage over 10–25 years generates meaningful additional retirement savings. The tax relief (up to $8,000/year) reduces your net cost further.

Step 4: Are You 55+ and Below ERS in RA?

Top up RA to enhance your CPF LIFE payout. Every $10,000 added to your RA at 65 adds roughly $50–$60/month to your monthly CPF LIFE payout for life. If you expect to live past 80, this is excellent value. See our full CPF Retirement Sum guide for payout projections.

When NOT to Top Up

• You need the cash in the near term. CPF top-ups are irreversible — once in, the money stays in CPF until retirement age (or death).
• You have high-interest debt. Credit card debt at 24–28% p.a. should be cleared before locking money in at 4%.
• You are using OA for housing shortly. RSTU top-ups to SA reduce your OA+SA to FRS headroom, but your OA remains separate. Just note that voluntary top-ups cannot be reversed.

How to Make a CPF Top-Up (Step by Step)

1. Log in to the CPF website using Singpass.
2. Navigate to My Requests > Building My Retirement Savings > Top Up My CPF Retirement Savings.
3. Choose: Top up your own SA/RA (RSTU) or top up a family member’s SA/RA.
4. Select payment method: PayNow (immediate), GIRO (recurring), or eNETS.
5. For MA top-ups: navigate to My Requests > Growing My Savings > Top Up My MediSave.
6. Tax relief is automatically reflected in your income tax assessment for the calendar year in which the top-up is made.

Related Tools

• CPF Top-Up Calculator (Singapore) — Calculate your RSTU headroom, interest earned and tax relief at your marginal rate.
• Retirement Planning Calculator (Singapore) — Combine your CPF projections with other assets to see your total retirement picture.
• CPF MediSave Account — What It Covers

Disclaimer: This article is for general information only and does not constitute financial advice. All CPF figures are as at October 2026 and sourced from CPF Board (cpf.gov.sg) and IRAS (iras.gov.sg). CPF rules and interest rates are subject to change. Consult a licensed financial adviser before making top-up decisions based on your personal circumstances.