If your taxable income for the 2026–27 tax year is less than £17,570, you will not pay any 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 is 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 have 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 2022–23 tax year, the deadline to make a claim is 5 April 2027.

If you have taxable income of less than £17,570 in 2023-24 you will have no tax to pay on interest received. This figure is calculated by adding the £5,000 starting rate limit for savings (where 0% of the interest is taxable) to the current £12,570 personal allowance. In addition, there is also a Personal Savings Allowance (PSA). This allowance ensures that for basic-rate taxpayers the first £1,000 interest on savings income is tax-free (effectively allowing qualifying basic-rate taxpayers to receive up to £18,570 in tax-free interest per year). For higher-rate taxpayers the tax-free personal savings allowance is £500. Taxpayers paying the additional rate of tax on taxable income over £125,140 cannot benefit from the PSA.

It is important to note that if your total non-savings income exceeds £17,570 then the starting rate limit for savings is unavailable. There is a tapered relief available if your non-savings income is between £12,570 and £17,570 whereby every £1 of non-savings income above a taxpayer's personal allowance reduces their starting rate for savings by £1.

Interest from savings products such as ISA's and premium bond wins do not count towards the limit. Taxpayers with tax-free accounts and higher savings can still continue to benefit from the relevant PSA limits.

Banks and building societies no longer deduct tax from bank account interest as a matter of course. Taxpayers who need to pay tax on savings income are required to declare this as part of their annual self-assessment tax return.

Taxpayers that have overpaid tax on savings interest can submit a claim to have the tax repaid. Claims can be backdated for up to four years from the end of the current tax year. This means that claims can still be made for overpaid interest dating back as far as the 2019-20 tax year. The deadline for making claims for the 2019-20 tax year is 5 April 2024.