See exactly how much tax relief the government adds to your pension contributions — and what your money is really worth once relief is applied.
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Pension tax relief is one of the most valuable tax benefits available to UK taxpayers. It means the government effectively tops up your pension contributions — the higher your tax rate, the more generous the top-up.
Most personal pensions use the "relief at source" method. You pay your contribution from your post-tax income, and the pension provider automatically claims 20% basic rate relief from HMRC and adds it to your pot. So if you pay in £80, your pension receives £100.
If you are a higher rate (40%) or additional rate (45%) taxpayer, you are entitled to more relief than the 20% added automatically. The extra relief must be claimed through a Self Assessment tax return. If you do not submit a Self Assessment return, you are effectively leaving money on the table.
Some workplace pensions use a "net pay arrangement" where contributions are taken before tax is calculated — meaning you automatically get full relief at your marginal rate without needing to claim through Self Assessment.
A higher rate taxpayer contributes £800 per month. Their pension provider adds £200 basic rate relief, making £1,000 in the pension. Through Self Assessment they can claim a further £200 (the difference between 40% and 20% on the gross contribution of £1,000). Their effective cost is £600 for £1,000 in their pension.
Tax relief is only available on contributions up to the annual allowance of £60,000. Use our Pension Contribution Calculator to check your position against the annual allowance.