CPF Top-Up Tax Relief Calculator (2026)
See how much tax you save by topping up your CPF SA or RA under the RSTU scheme.
What is the CPF Top-Up Tax Relief Calculator?
The CPF Top-Up Tax Relief Calculator estimates how much income tax you save by making voluntary cash top-ups to your CPF Special Account or Retirement Account under the Retirement Sum Topping-Up (RSTU) scheme. It uses the IRAS YA2026 progressive tax brackets to compute your actual tax savings.
Quick Answer
Result updates as you type
Tax savings from top-up
$560.00
Effective return: 7% on $8,000 top-up
Tax before
$3,349.93
Tax after
$2,789.93
You save
$560.00
Relief breakdown
Tax relief cap: $8,000 self + $8,000 family. Subject to $80,000 overall personal relief cap. Top-ups go to SA (below 55) or RA (55+). Verify with CPF Board.
Disclaimer
This calculator provides estimates and should not be viewed as a prediction. Actual CPF contributions, allocations, and payouts may vary due to policy changes, individual circumstances, and rounding rules. It is not intended to be your sole source of financial guidance.
Rates last verified: 4 Apr 2026.
Verify with CPF Board (https://www.cpf.gov.sg). Full disclaimer at smartcalculator.sg/disclaimer.
Quick Reference
- • Self top-up tax relief: up to $8,000 per Year of Assessment
- • Family member top-up relief: additional $8,000 per Year of Assessment
- • Total RSTU relief: up to $16,000 per year
- • Personal relief cap: $80,000 (all reliefs combined)
- • Top-ups go to SA (below 55) or RA (55 and above), earning 4.0% p.a.
- • Tax relief cap: $8,000 for self top-up + $8,000 for family member top-up = max $16,000/year
- • Top-ups are irrevocable — cannot be withdrawn before retirement age
- • Can top up for parents, grandparents, spouse, siblings — all qualify for tax relief
Who This Calculator Is For
Workers Wanting Tax Relief
Cash top-ups to your own or a family member's RA/SA qualify for tax relief of up to $8,000 per year (self) + $8,000 (family).
- Self relief: Up to $8,000/year
- Family relief: Additional $8,000/year
- Relief cap: $80,000 total personal reliefs
Near-55 Workers
SA closes at 55. Topping up SA before 55 locks in 4.0% p.a. interest. After 55, top-ups go to RA instead.
- SA rate: 4.0% p.a. — locked in before 55
- SA closure: Effective January 2025 at age 55
- Post-55: Top-ups redirect to RA
Members with MediSave Below BHS
Top-ups to MediSave are allowed if your balance is below the Basic Healthcare Sum (BHS). These also earn 4.0% p.a. interest.
- MA rate: 4.0% p.a.
- Top-up limit: Up to Basic Healthcare Sum (BHS)
- Use: Medical expenses and MediShield Life
Family Members and Employers
Employers can make top-ups on behalf of employees. Parents can top up children's CPF accounts to start compounding early.
- Employer top-up: No tax relief for employee
- Parent to child: Qualifies for $8,000 family relief
- Eligible family: Spouse, parents, siblings, grandparents
How CPF Top-Up Tax Relief Works
The Retirement Sum Topping-Up (RSTU) scheme lets you make voluntary cash top-ups to your own or your family members' Special Account (SA) or Retirement Account (RA). These top-ups qualify for income tax relief, effectively giving you a guaranteed return equal to your marginal tax rate.
You can claim up to $8,000 for self and an additional $8,000 for family members, for a total of $16,000 in tax relief per year. The top-up goes to the SA for members below 55, or the RA for members 55 and above.
All personal tax reliefs are subject to an overall cap of $80,000 per Year of Assessment. If your total reliefs already exceed this cap, the CPF top-up relief will not provide additional tax savings, though the top-up itself still earns CPF interest.
Worked example: Your assessable income is $85,000. Your chargeable income after other reliefs is $75,000, putting you in the 11.5% marginal tax bracket on income above $80,000. A $8,000 CPF top-up to your SA reduces your chargeable income to $67,000 — moving you firmly into the 7% bracket and saving approximately $800–$1,200 in income tax (depending on the exact bracket interaction), while also earning 4% p.a. on the $8,000 for retirement. The combined tax saving + 4% return makes the effective ‘return’ on this $8,000 far exceed any comparable risk-free investment.
Who benefits most from CPF top-ups: (1) Salaried employees in the 11.5–15% marginal tax brackets — where tax savings are significant; (2) Anyone with a SA/RA shortfall relative to the Full Retirement Sum; (3) Parents who want to start their children's CPF accounts with a lump sum gift (top-up to a child's SA qualifies for tax relief); (4) Self-employed persons not subject to mandatory CPF contributions. Note: once funds are topped up to the SA or RA, they cannot be withdrawn before age 55 (SA) or before CPF LIFE payouts start (RA) — they are locked in for retirement.
Self Top-Up
Cash top-up to your own SA or RA
Up to $8,000 tax relief
Family Top-Up
Cash top-up to family members' SA or RA
Additional $8,000 tax relief
Personal Relief Cap
All reliefs combined cannot exceed the cap
$80,000 per Year of Assessment
Cash Top-Up vs Transfer (OA→SA/RA): Key Differences
Two ways to boost your SA or RA balance — but only cash top-ups qualify for tax relief. Both are irreversible.
| Method | Source of Funds | Tax Relief | Reversible? | Best For |
|---|---|---|---|---|
| Cash top-up | Your bank account | Yes — up to $8,000/year | No | Maximising tax relief |
| OA→SA/RA transfer | Your existing OA balance | No | No | Earning higher 4% interest |
| Employer top-up | Employer funds | No (for employee) | No | Corporate retirement benefits |
Both cash top-ups and OA transfers are permanently locked in SA/RA until retirement. Cash top-ups are the only method that qualifies for RSTU tax relief.
Frequently Asked Questions
How much can I top up my CPF for tax relief?expand_more
You can claim up to $8,000 in tax relief for topping up your own Special Account (SA) or Retirement Account (RA) under the Retirement Sum Topping-Up (RSTU) scheme. An additional $8,000 is available for topping up your family members' accounts, for a total of $16,000 per Year of Assessment.
Who counts as a family member for CPF top-up relief?expand_more
You can top up the SA/RA of your spouse, parents, parents-in-law, grandparents, grandparents-in-law, and siblings. The recipient must be a Singapore citizen or permanent resident. Top-ups to your family members' accounts qualify for the additional $8,000 tax relief.
Does the top-up go to SA or RA?expand_more
If the recipient is below age 55, the top-up goes to their Special Account (SA). If they are 55 or above, the top-up goes to their Retirement Account (RA), up to the current Full Retirement Sum (FRS). Note that from January 2025, the SA was closed for members aged 55 and above.
Is the CPF top-up tax relief subject to the $80,000 personal relief cap?expand_more
Yes. All personal income tax reliefs, including CPF top-up relief, are subject to an overall personal relief cap of $80,000 per Year of Assessment. This means the combined value of all your reliefs (earned income, CPF, NSman, spouse, etc.) cannot exceed $80,000.
What is the difference between RSTU and voluntary CPF contributions?expand_more
The Retirement Sum Topping-Up (RSTU) scheme is a cash top-up to your SA/RA that qualifies for tax relief. Voluntary contributions (VC) are additional CPF contributions on top of mandatory ones, allocated across OA, SA, and MA. Only RSTU top-ups qualify for the specific $8,000 self + $8,000 family tax relief.
Can I top up my child's CPF account and get tax relief?expand_more
Yes. Cash top-ups to a child's CPF Special Account qualify for tax relief of up to $8,000 per year under the Retirement Sum Topping-Up Scheme, as long as the child is a Singapore Citizen or PR. The relief is claimed by the person making the top-up (the parent/grandparent), not the child. However, the funds cannot be accessed until the child reaches CPF withdrawal age — they are committed to retirement. This is a powerful way to give children a head start on retirement savings while reducing your own tax bill.
What is the maximum I can top up to the Special Account?expand_more
You can top up your SA up to the Full Retirement Sum (FRS) less the existing balance in your RA and SA. The FRS for the 2026 cohort is $220,400. If your SA currently has $50,000 and RA has $0, you can top up a maximum of $170,400. However, the tax relief is capped at $8,000 per year for self top-ups, so large top-ups do not yield proportionally larger tax savings in the year of contribution. The $8,000 tax relief cap makes it most beneficial to make annual top-ups consistently rather than one large lump sum. Also note: from 2026, the first $1,000 of MediSave top-ups may qualify for a dollar-for-dollar government grant under the Matched MediSave Scheme instead of tax relief.
Sources
- • CPF Board (cpf.gov.sg) — Retirement Sum Topping-Up Scheme eligibility and limits
- • IRAS (iras.gov.sg) — Tax relief amounts, personal relief cap, and YA2026 tax brackets
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