For a personal pension or SIPP, basic-rate relief is added at source. Higher-rate taxpayers must claim the extra 20% themselves. Additional-rate taxpayers claim 25%. Scottish higher-rate taxpayers claim 22%. There are three routes: (1) via Self Assessment if you already file, (2) via written claim to HMRC if you don't, (3) via a tax code adjustment for ongoing contributions. You can backdate claims four tax years (so in May 2026 you can still claim for 2021/22 onwards). Workplace auto-enrolment is usually different (salary sacrifice or net pay — full relief already given).
Which pensions need a manual claim?
| Pension type | How relief is given | Manual claim needed? |
|---|---|---|
| Personal pension / SIPP | Basic-rate (25% gross-up) at source. Higher-rate manually. | YES (if higher/additional rate) |
| Workplace pension (net pay arrangement) | Full relief at source via payroll — gross deduction. | No — automatic |
| Workplace pension (relief at source) | Basic-rate at source. Higher-rate manually. | YES (if higher/additional rate) |
| Salary sacrifice scheme | Full relief automatic (no income tax, no NI on sacrificed amount). | No — automatic |
| Old "stakeholder" pensions | Basic-rate at source. | YES (if higher/additional rate) |
The 2026/27 maths — how much relief you can claim
| Your highest tax rate | Relief already given | Total entitled relief | Manual claim worth |
|---|---|---|---|
| 20% basic rate | 20% (full) | 20% | £0 (no extra) |
| 40% higher rate | 20% (at source) | 40% | 20% of gross contribution |
| 45% additional rate | 20% (at source) | 45% | 25% of gross contribution |
| 60% trap (£100k-£125k) | 20% (at source) | ~60% | ~40% of gross contribution |
| Scottish 21% intermediate | 20% (at source) | 21% | 1% of gross contribution |
| Scottish 42% higher | 20% (at source) | 42% | 22% of gross contribution |
| Scottish 45% advanced | 20% (at source) | 45% | 25% of gross contribution |
| Scottish 48% top | 20% (at source) | 48% | 28% of gross contribution |
Worked example: £80,000 earner, £10,000 gross pension contribution
- You pay £8,000 from your bank account
- Provider adds £2,000 basic-rate relief → £10,000 in pension
- HMRC owes you 20% × £10,000 = £2,000 more
- Net cost of £10,000 pension contribution: £8,000 − £2,000 refund = £6,000
- Effective tax saving: 40%
Worked example: £110,000 earner (in 60% trap), £20,000 gross contribution
- You pay £16,000 from your bank account
- Provider adds £4,000 basic-rate relief → £20,000 in pension
- You're in the £100k-£125k PA-taper band. Each £1 of pension contribution restores £0.50 of PA, saving you 40% on that £0.50.
- HMRC owes you 20% × £20,000 (standard higher-rate) + 20% × £20,000 (restored PA = £10k × 40%) = £4,000 + £4,000 = £8,000 more
- Net cost of £20,000 pension contribution: £16,000 − £8,000 = £8,000
- Effective tax saving: 60%
Route 1: Self Assessment
If you already file Self Assessment, this is the easiest route.
Route 2: Written claim (no Self Assessment)
If you don't normally file SA, write to HMRC.
Route 3: Tax code adjustment (ongoing)
If you make regular ongoing contributions to a personal pension, ask HMRC to update your tax code to give you the relief throughout the year (rather than a lump-sum refund later).
Backdate four years — the windfall opportunity
Tax relief can be claimed up to four tax years back. As of May 2026, you can claim for:
- 2022/23 (return amendments closed Jan 2024, written claim only)
- 2023/24 (amendable until Jan 2026 — closed, written claim only)
- 2024/25 (amendable until Jan 2027 — SA route possible)
- 2025/26 (filing this year — SA route)
Worked example: 4-year backdate windfall
Mark earns £75,000, makes £8,000 net contributions (£10,000 gross) every year to a SIPP. Never claimed higher-rate relief.
- 4 years × £2,000 = £8,000 refund (plus interest at HMRC's prevailing rate, ~3-4%)
- Written claim with P60s and SIPP statements
- Typically settled in 30-60 days
Common mistakes
Calculate your higher-rate relief
The pension tax-relief calculator works out exactly how much HMRC owes you for any contribution at any income level (including Scotland and the 60% trap band).
Open the pension relief calculator →Sources and references
Higher-rate pension relief framework from gov.uk/tax-on-your-private-pension/pension-tax-relief. Backdating rules from gov.uk tax refund guidance. Annual Allowance rules from gov.uk Annual Allowance.
UK Tax Drag is not authorised by the Financial Conduct Authority and does not provide regulated financial or tax advice — see the content disclaimer for the full position. The methodology page documents how every guide is built and reviewed.
Other HMRC how-to guides
- How to write to HMRC — template letters
- How to check your tax code online
- How to register for Self Assessment
- Self Assessment walkthrough 2026/27
- How to claim higher-rate pension relief
- How to claim Marriage Allowance retrospectively
- How to claim work-from-home tax relief
- How to dispute a tax bill
- HMRC phone wait times + contact channels
- What to do if you can't pay your tax bill
- HMRC Response Centre (hub)
How UK Tax Drag holds itself to account
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