Lexicon Tax

Claiming a Tax Refund: What to Do If You’ve Overpaid HMRC.

Claiming a Tax Refund: What to Do If You’ve Overpaid HMRC

If you think you’ve paid too much tax, you may be entitled to a refund from HMRC. Tax overpayments can happen for many reasons — from changes in your employment to incorrect tax codes or missed allowances. The steps you need to take will depend on whether you complete a Self Assessment tax return and how long ago the overpayment occurred.

Situations Where You May Be Due a Tax Refund

HMRC allows refunds for overpaid tax in a wide range of circumstances, including:

  • PAYE income from employment
  • Work‑related expenses (e.g., working from home, tools, uniforms, fuel)
  • Pension income
  • Overpayments identified through a Self Assessment return
  • Redundancy payments
  • UK income received while living overseas
  • Savings interest or PPI compensation
  • Income from life or pension annuities
  • Foreign income
  • UK income earned before leaving the country

Checking Your Eligibility

HMRC offers an online tool to help you check whether you can claim a refund and guide you through the process:
https://www.gov.uk/claim-tax-refund/y

How Far Back You Can Claim

You can usually claim a tax refund for up to four years after the end of the relevant tax year. This means claims can still be made for the 2021–22 tax year (which ended on 5 April 2022) until 5 April 2026.

To avoid missing out, make sure your claim is submitted within the deadline and that all information you provide is complete and accurate.