Pension Tax Relief Calculator UK 2025/26 | How Much Could You Save?

How Pension Tax Relief Works for the Self-Employed

When you contribute to a personal pension or SIPP (Self-Invested Personal Pension), the government adds basic-rate tax relief automatically — turning a £800 net contribution into £1,000 in your pension pot. Higher and additional-rate taxpayers can claim further relief through Self Assessment, effectively making a £1,000 pension contribution cost them just £600 or £550 respectively.

For self-employed people, pension contributions also reduce your self-assessment profit, which in turn reduces your Class 4 National Insurance liability — adding another layer of saving beyond the income tax relief.

Pension Tax Relief Rates 2025/26

Your Tax Rate	You Pay In	Pension Receives	Effective Cost to You
Basic (20%)	£800	£1,000	£800
Higher (40%)	£800	£1,000	£600 (after SA claim)
Additional (45%)	£800	£1,000	£550 (after SA claim)

Source: HMRC / gov.uk · Rates correct for 2025/26 tax year.

Higher and additional-rate relief must be claimed through your Self Assessment return — it is not added automatically. This is one of the most commonly missed reliefs in freelancer tax returns.

Annual Pension Allowance

The annual allowance — the maximum you can contribute with tax relief — is £60,000 for 2025/26 (or your total earnings if lower). If you have started drawing pension benefits flexibly, the Money Purchase Annual Allowance (MPAA) reduces this to £10,000. Contributions above the annual allowance attract a tax charge.

For most freelancers earning under £60,000, the annual allowance is not a binding constraint. The focus should be maximising pension contributions up to earnings level, particularly in high-income years where you are approaching the 40% or 60% marginal tax rates (the latter between £100,000 and £125,140 where the personal allowance tapers away).

SIPPs for Freelancers

A Self-Invested Personal Pension (SIPP) is a pension wrapper that gives you control over your investment choices. SIPPs are particularly popular with freelancers because you contribute when and how much you choose — there are no fixed monthly requirements — making them well-suited to irregular income patterns.

Major UK SIPP providers include Vanguard, AJ Bell, Hargreaves Lansdown and interactive investor. Contributions receive the same tax relief as any personal pension. See also our guide on SIPP withdrawal tax for what happens when you draw your pension.

Frequently Asked Questions

FAQ

How much pension tax relief can I claim?+

You receive relief at your marginal rate. Basic-rate taxpayers get 20% added by the pension provider (£800 becomes £1,000). Higher-rate taxpayers claim an additional 20% through Self Assessment; additional-rate taxpayers claim an extra 25%. The maximum annual contribution with relief is £60,000 or your total earnings, whichever is lower.

Do self-employed people get pension tax relief?+

Yes. Self-employed people receive exactly the same pension tax relief as employees. The relief is claimed either automatically (basic rate) or through Self Assessment (higher and additional rate). There is no employer contribution, so the individual must fund the pension entirely, but the tax relief makes this highly efficient.

Is a SIPP better than an ISA for a freelancer?+

For reducing your current tax bill, a SIPP is usually better because contributions attract tax relief. An ISA provides no upfront relief but withdrawals in retirement are tax-free. For income over £100,000 approaching the personal allowance taper, SIPP contributions are especially powerful because they reduce income below the threshold, restoring the personal allowance.

How do I claim pension tax relief on Self Assessment?+

Enter your gross pension contributions in the pension section of your Self Assessment return. HMRC calculates the additional relief owed (for higher/additional-rate taxpayers) and either reduces your tax bill or refunds the difference. Keep records of contributions made during the tax year.