Pension Tax Relief Calculator 2026/27
Pension contributions benefit from tax relief, which effectively means the government tops up what you put in. For basic rate taxpayers, £80 from your pocket becomes a £100 pension contribution. Higher and additional rate taxpayers can reduce the cost further by claiming extra relief through self-assessment, but many people miss this. This calculator shows the exact cost of any pension contribution at your income level, including Scottish income tax rates, and tells you how much additional relief to claim back.
How pension tax relief works
-
1Basic rate relief is added by your pension provider
For relief-at-source pensions, you contribute from your net (after-tax) pay. Your pension provider then claims 20% basic rate relief from HMRC and adds it to your pot. This happens automatically regardless of whether you pay income tax or not.
-
2Higher and additional rate taxpayers can claim more
If you pay tax at 40% or 45% (or Scottish higher rates), you are entitled to more than the basic 20% relief. The extra relief is not added automatically, you must claim it through a self-assessment tax return or by calling HMRC.
-
3Salary sacrifice works differently
If your employer uses a salary sacrifice arrangement, contributions are deducted before tax and NI are calculated. You do not need to claim anything, the relief is built in. You also save National Insurance on the contributed amount.
2026/27 pension tax relief rates
| Tax band | Effective cost of £100 pension | How to claim extra |
|---|---|---|
| Basic rate (20%) | £80 | Automatic via provider |
| Higher rate (40%) | £60 | Self-assessment tax return |
| Additional rate (45%) | £55 | Self-assessment tax return |
| Scottish higher rate (42%) | £58 | Self-assessment tax return |
| Scottish top rate (48%) | £52 | Self-assessment tax return |
What your results mean
The effective cost figure shows how much the pension contribution actually costs you after all tax relief is factored in. For a basic rate taxpayer contributing £1,000 gross, the out-of-pocket cost is £800. For a higher rate taxpayer who also claims their additional relief, the cost falls to £600. The money in the pot is still the full £1,000, you are simply paying less than the face value to put it there.
Why additional rate relief is so often missed
HMRC does not proactively tell you that you are owed additional pension tax relief. It is your responsibility to claim it, either via self-assessment or by contacting HMRC directly to have your tax code adjusted. If you have been making pension contributions as a higher rate taxpayer for several years without claiming, you may be able to backdate claims up to four years. The sums can be significant, a higher rate taxpayer contributing £10,000 per year and missing the additional claim is leaving £2,000 per year on the table.
Scottish taxpayers have different rates
Scotland has its own income tax rates. While basic rate relief is still added at 20% by pension providers (the same UK-wide), Scottish higher rate taxpayers (42% band) are entitled to 22% additional relief, and those in the top rate band (48%) can claim 28% additional relief. The calculator above accounts for these differences when you select Scottish rates.
Annual allowance limit: Tax relief on pension contributions is only available up to the annual allowance of £60,000 (2026/27), or 100% of your earnings if lower. Contributions above this limit attract a tax charge. Use the Annual Allowance Checker to verify you are within the limit.
Frequently asked questions
You claim higher rate pension tax relief through a self-assessment tax return. If you do not already file a self-assessment return, you can register with HMRC and include your pension contributions on the return. Alternatively, you can contact HMRC directly by phone or through your personal tax account online, and they can adjust your tax code to give you the relief immediately rather than as a lump sum at the end of the tax year. You can backdate claims for up to four years.
Yes. The annual allowance of £60,000 is measured against gross pension contributions, which includes the tax relief. So if you contribute £48,000 net and the pension provider adds £12,000 in basic rate relief, the gross contribution is £60,000 and you have used the full allowance. Employer contributions also count towards the allowance.
Under a relief-at-source arrangement, basic rate relief is added to contributions even if you do not pay income tax. This is sometimes called the "net pay glitch bonus" for non-taxpayers. However, under a net pay arrangement (used by some workplace pension schemes), relief is only given if you actually pay tax at that rate. If you are a non-taxpayer in a net pay scheme, you may not receive any relief at all, this is a known anomaly that has been the subject of government review.
With relief at source, you pay pension contributions from your net (after-tax) pay, and your provider claims basic rate relief from HMRC. Higher rate taxpayers must claim further relief separately. With net pay, contributions are deducted from your gross pay before tax is calculated, so you automatically get relief at your marginal rate. Salary sacrifice is similar to net pay in outcome. Most personal pensions and SIPPs use relief at source. Many employer-run workplace pensions use net pay or salary sacrifice.
Yes, but with limits. If you have no earnings, you can still contribute up to £3,600 gross per year to a pension (the equivalent of £2,880 net with 20% relief added). This applies to personal pensions and SIPPs. This limit means a parent who has left work to care for children can still contribute to their pension using savings, with the government topping up each contribution by 25% (the equivalent of basic rate relief on the gross amount).
Disclaimer: This calculator provides estimates for guidance purposes only. Tax relief rules are subject to change. It does not constitute financial or tax advice. Always consult a regulated financial adviser or qualified tax adviser for personal pension planning.