CPF Special Account Closure Impact Calculator 2025–2026
SA → RA → OA Split, 4% vs 2.5% Interest Loss & RSTU Recovery Strategy
Calculate the exact financial impact of the 2025 CPF Special Account closure on your retirement savings. See how your SA was (or will be) split between RA and OA at age 55, the annual and cumulative interest rate loss from 4% SA dropping to 2.5% OA on excess savings, and how voluntary RSTU top-ups can help recover the lost 4% rate.
From your CPF statement in Dec 2024 or via Singpass → My CPF. This is what your SA held just before the January 2025 closure.
If your RA was already partially funded, enter the balance before SA closure. Used to calculate how much SA went to RA vs OA.
Voluntary cash top-ups to RA via RSTU move money back to 4% and qualify for up to S$8,000/yr income tax relief.
Select your situation above (already 55+ or under 55), then enter your SA balance to see the exact split between RA and OA, the annual interest rate loss from 4% SA closing to 2.5% OA, and the cumulative compound cost over 10 and 20 years.
CPF Special Account Closure 2025 — What Happened to SA Savings for Members Aged 55 and Above, Interest Rate Impact & Recovery Options
In Budget 2024, the Singapore government announced the closure of the CPF Special Account for members aged 55 and above, effective January 2025. The SA — which earned a guaranteed 4% per annum — was closed for all members who had already turned 55. Their SA balances were redistributed as follows: funds up to the Full Retirement Sum (FRS: S$213,000 in 2026) were channelled into the Retirement Account (RA), which continues to earn 4%. Any excess SA above the FRS was transferred to the Ordinary Account (OA), which earns only 2.5% per annum — a permanent 1.5% annual rate reduction on those excess funds.
The impact varies significantly by SA balance. Members whose SA was at or below the FRS experienced no negative impact — all their SA moved to RA at 4%. Members with SA above the FRS (a common outcome for high earners who had consistently practised RSTU top-ups over decades) experienced the most significant impact: for every S$100,000 of excess SA now in OA, the annual interest loss is S$1,500 — compounding to over S$34,000 in lost interest over 20 years.
SA Closure Impact by SA Balance — Who Is Most Affected?
| SA at Closure | SA → RA | SA → OA (Excess) | Annual Loss | 10-Yr Compound Loss |
|---|---|---|---|---|
| S$100,000 | S$100,000 | S$0 | None | None |
| S$213,000 | S$213,000 | S$0 | None | None |
| S$280,000 | S$213,000 | S$67,000 | S$1,005/yr | ~S$11,600 |
| S$350,000 | S$213,000 | S$137,000 | S$2,055/yr | ~S$23,700 |
| S$500,000 | S$213,000 | S$287,000 | S$4,305/yr | ~S$49,700 |
The RSTU Recovery Strategy — Moving Funds Back to 4% RA
Members with excess SA now earning 2.5% in OA can partially recover the lost 4% rate by making voluntary Retirement Sum Top-Up (RSTU) cash contributions to their RA. Each dollar moved from cash to RA earns 4% (vs OA’s 2.5%), restoring the rate gap. Crucially, RSTU contributions qualify for up to S$8,000 per year in personal income tax relief — making the recovery strategy doubly beneficial. For a member in the 11.5% marginal tax bracket: S$8,000 RSTU top-up saves approximately S$920 in income tax AND restores 4% on those S$8,000 of funds. Over 10 years, this compounds to significantly more than keeping the funds in OA.
How This SA Closure Calculator Works — SA Split, Annual Interest Gap & Compound Loss Projection
Step 1 — Enter SA at Closure to Calculate the SA → RA → OA Split
Input your SA balance at the time of closure (January 2025) and any existing RA balance. The calculator determines: how much SA filled the FRS in RA (earns 4% p.a.), and how much excess SA moved to OA (now earns 2.5% p.a.). The fund flow diagram shows this split visually with the interest rate for each destination.
Step 2 — Annual and Cumulative Interest Loss Calculated
Annual loss = Excess SA × 1.5% (the gap between 4% and 2.5%). Cumulative compounding loss is calculated year-by-year: what the excess SA would have grown to at 4% vs what it actually grows to at 2.5% — showing the widening gap at years 5, 10, and 20. The chart plots both trajectories.
Step 3 — RSTU Recovery: How Much to Top Up to Offset the Loss
Enter your planned annual RSTU top-up (capped at S$8,000 for full tax relief). The recovery section shows: extra interest recovered per year from moving S$ from cash back to RA at 4%, plus the income tax saving from the RSTU deduction. Together, these make RSTU the primary tool for offsetting the SA closure impact.
3 Real Singapore SA Closure Examples — S$280K SA, S$350K SA & Under-55 Planning
Example 1: S$280K SA, Age 58, 2025
Example 2: S$350K SA, Age 60, Retired
Example 3: Age 42, Plan Before 55
3 Expert Tips on SA Closure — OA to RA Transfer, RSTU Timing & What Under-55s Should Do Now
The Fastest Way to Restore 4% on Excess SA: Transfer OA to RA (Irreversible)
Members with excess SA now sitting in OA at 2.5% can transfer those funds directly from OA to RA via my.cpf.gov.sg (Home → Retirement → Transfer OA to RA). The transfer is one-way and irreversible, but every dollar transferred earns 4% in RA instead of 2.5% in OA. Crucially, this OA-to-RA transfer does NOT qualify for the S$8,000 RSTU tax relief — only cash contributions via RSTU do. The optimal strategy: use OA-to-RA for large lump-sum restoration of the 4% rate, and use RSTU (cash contributions) for the ongoing annual S$8,000 tax relief claim. Together, both mechanisms allow members to partially or fully offset the SA closure impact depending on their OA balance and cash position.
Under 55? The SA Closure Affects Your Plans at 55 — Here is What to Do Before Then
Members who are currently under 55 still have a fully functioning SA earning 4% p.a. The SA closure does not affect them yet — but it will at age 55, when their SA is redistributed. The strategic implication: if your projected SA at 55 will exceed the FRS (S$213,000), the excess will move to OA at 2.5%. The solution is to model your projected SA now, maximise RSTU contributions to bring SA up to (but not massively above) the FRS by 55, and consider whether aggressive pre-55 SA top-ups make sense given the post-55 rate cap. For members with SA significantly below the FRS at 55, the SA closure has no negative impact — all SA will flow into RA at 4%.
The SA Closure Eliminated the “SA Shielding” Strategy — But RSTU Is Still Powerful
Pre-2025, sophisticated CPF members aged 55+ used “SA shielding”: transferring SA funds into CPFIS SA investments just before turning 55, preventing those funds from being auto-transferred to RA at RA creation, and preserving large SA balances earning 4% indefinitely. The SA closure eliminated this strategy entirely — SA was closed regardless of whether funds were in CPFIS SA or SA cash. However, the RSTU scheme (voluntary RA top-ups with S$8,000/yr tax relief) remains fully available and is now the primary tool for both restoring 4% returns AND reducing income tax. For members who relied on SA shielding, the RSTU annual discipline of S$8,000/yr cash contributions is the clearest replacement strategy.