Tax rules for savings interest

tiemadmin • 19 June 2025

You could earn up to £18,570 in tax-free savings interest in 2025–26, thanks to the personal allowance, starting rate for savings, and the Personal Savings Allowance.

If your taxable income for the 2025–26 tax year is less than £17,570, you will not pay tax on the interest you receive. This figure combines the £5,000 starting rate for savings (taxed at 0%) with the £12,570 personal allowance.

In addition, the Personal Savings Allowance (PSA) provides further tax-free savings interest: basic-rate taxpayers can earn up to £1,000 in interest tax-free, while higher-rate taxpayers can earn up to £500. Those who pay the additional rate of tax on income over £125,140 are not eligible for the PSA. This means that a basic-rate taxpayer with no other income could receive up to £18,570 in tax-free interest.

It's important to understand that if your total non-savings income exceeds £17,570, you are no longer eligible for the starting savings rate. However, if your non-savings income falls between £12,570 and £17,570, the starting rate is reduced by £1 for every £1 your income exceeds your personal allowance.

Interest earned from ISAs or premium bond winnings is not included in these thresholds and remains tax-free. Those with higher savings in tax-free accounts can continue to benefit from their applicable PSA.

Banks and building societies no longer deduct tax from interest payments automatically. If you do owe tax on savings income, you must declare it through a self-assessment tax return.

If you’ve overpaid tax on your savings interest, you can submit a claim for a refund. Claims can be backdated up to four years from the end of the current tax year. For the 2021–22 tax year, the deadline to make a claim is 5 April 2026.

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