SIPP Contribution Calculator UK 2026
Calculate SIPP contributions, tax relief and projected pension pot. See how basic rate, higher rate and additional rate taxpayers can boost SIPP savings.
SIPP Contribution Calculator 2026
Frequently Asked Questions
How does SIPP tax relief work in the UK?
When you contribute to a SIPP, the provider automatically claims basic rate tax relief (20%) from HMRC and adds it to your pot. So a £800 net contribution becomes £1,000 gross in your SIPP. Higher rate (40%) and additional rate (45%) taxpayers can claim the additional relief via their self-assessment tax return — but HMRC does not add it to the pension; it reduces your income tax bill instead.
Can higher rate taxpayers claim extra SIPP relief?
Yes. Higher rate (40%) taxpayers effectively receive 40% relief: 20% is added at source, and a further 20% is claimable via self-assessment, reducing your tax bill. Additional rate (45%) taxpayers can claim 45% total. A £1,000 gross pension contribution effectively costs a higher rate taxpayer only £600 and an additional rate taxpayer only £550 out of pocket.
What is the SIPP annual contribution limit for 2025/26?
The pension annual allowance for 2025/26 is £60,000 (or 100% of your UK earnings if lower). This covers all pension contributions including employer contributions. If you have accessed pension savings flexibly, the Money Purchase Annual Allowance (MPAA) of £10,000 may apply. Unused allowances from the past 3 years can be carried forward.
SIPP vs workplace pension — which is better?
Workplace pensions often include employer contributions (typically 3–5% of salary), which is essentially free money — this usually makes them the priority. SIPPs offer a wider investment choice and are useful for self-employed people, those with multiple income sources, or those who want more control. Many people have both: maximising employer-matched workplace contributions first, then using a SIPP for additional savings.
Can I put a lump sum into my SIPP?
Yes. You can make lump sum contributions at any time, up to the annual allowance of £60,000 (or your total UK earnings). If you have unused annual allowances from the previous three tax years, you may be able to carry these forward and contribute more in a single year. Lump sums receive the same tax relief as regular contributions.