How to claim a tax refund in the UK

You claim a UK tax refund by contacting HMRC (Her Majesty's Revenue and Customs) directly — either online through your personal tax account, by phone, or by post. The method depends on whether you are employed, self-employed, or claiming a VAT refund as a visitor. HMRC will not automatically send you money you are owed; you have to tell them you overpaid.

Most refunds arrive within 4 to 8 weeks of HMRC receiving your claim, though some take longer if they need to investigate. The speed also depends on how you submit your claim: online claims are usually faster than postal ones, and Self Assessment refunds are processed automatically once your return is filed.

Key Takeaways

  • HMRC does not automatically refund overpaid tax — you must contact them to claim, and the method depends on your employment status.
  • Employed workers can claim through their personal tax account online, by phone on 0300 200 3300, or by post with a completed SA302 form.
  • Self-employed people must file a Self Assessment tax return; HMRC calculates the refund and pays it to your bank account.
  • VAT refunds for international visitors require a VAT refund form completed at the point of sale and submitted to HMRC with receipts and proof of export.
  • Refunds typically take 4 to 8 weeks, but complex cases or those requiring investigation can take several months.

Claiming a refund if you are employed

If you work for an employer and PAYE (Pay As You Earn) tax has been taken from your wages, you can claim a refund through your personal tax account on the HMRC website. You will need your National Insurance number and a valid password or biometric login. Once logged in, select "Check your Income Tax" and follow the prompts to declare any overpayment.

If you do not have an online account or prefer not to use one, phone HMRC on 0300 200 3300 (Monday to Friday, 8am to 8pm). Have your National Insurance number and recent payslips ready. You can also write to HMRC at the address on your most recent tax letter, enclosing a completed SA302 form (available from the HMRC website) and evidence of overpayment, such as payslips or a P60 form.

HMRC will review your claim and send the refund to your bank account. If you have overpaid by a small amount (usually under £50), HMRC may offset it against future tax bills instead of sending a cheque. You can request a full refund by stating this clearly on your claim form or when you phone.

Claiming a refund if you are self-employed

Self-employed people must file a Self Assessment tax return each year. If your return shows you have overpaid, HMRC calculates the refund automatically and sends it to your bank account within 4 to 8 weeks of the deadline (usually 31 January). You do not need to submit a separate claim — the refund is processed as part of the return.

You can file your return online through your personal tax account, by post using a paper form SA100, or through a tax agent or accountant. If you have not yet registered for Self Assessment, you must do so before you can file. You can register online on the HMRC website or by phone on 0300 200 3300. Registration itself takes a few days, so do this as soon as you become self-employed.

If you believe you have overpaid during the tax year and do not want to wait until the return deadline, you can contact HMRC to request an interim refund. This is less common and requires evidence that you have genuinely overpaid — for example, if you have made quarterly payments but your income has dropped significantly.

VAT refunds for international visitors

If you are a visitor from outside the UK and have purchased goods subject to VAT, you may be able to reclaim the VAT when you leave the country. This is not a standard HMRC process; instead, you use a VAT refund scheme operated by private companies at airports and ports. The most common schemes are Global Blue and Planet, though others exist.

At the point of sale, ask the shop for a VAT refund form (sometimes called a "tax-free shopping form"). The shop will complete their part and you will complete yours with your passport details and address. Keep your receipts and the goods in their original packaging and unopened condition — you may need to show them to customs officials.

When you leave the UK, present the form, receipts, and goods to the VAT refund desk at the airport or port before you check in or pass through customs. They will verify everything and either refund the VAT in cash, to your card, or by bank transfer. Processing times vary by scheme, but most refunds are processed within 2 to 4 weeks if sent by post. Cash refunds are usually available on the spot, though they may carry a small fee.

What to do if your refund is delayed

If your refund has not arrived within 8 weeks, contact HMRC to check the status. Phone 0300 200 3300 or log into your personal tax account to see if there are any messages from HMRC asking for more information. Sometimes HMRC needs clarification on your claim before it can process the refund — for example, proof that you have left the UK (for VAT refunds) or evidence of your changed circumstances.

If HMRC has lost your claim or there is an error, ask for a reference number and the name of the person handling your case. Keep this information for your records. If you are still waiting after 12 weeks, you can ask HMRC to escalate your case or lodge a complaint with the Adjudicator's Office, which handles disputes between taxpayers and HMRC. The Adjudicator can investigate complaints about how HMRC has handled your case, though they cannot force HMRC to pay you if the refund is not owed.

Refunds and overpayment relief

HMRC can only refund tax you have actually overpaid. If you have paid the correct amount of tax for your circumstances, there is no refund to claim. However, if your circumstances change during the tax year — for example, you lose your job or your income drops — you may be able to claim overpayment relief to reduce your tax bill for the rest of the year.

Overpayment relief is different from a refund. Instead of receiving money back, your tax code is adjusted so less tax is taken from your remaining wages. You can request this by contacting HMRC and providing evidence of your changed circumstances, such as a redundancy letter or a letter from your employer confirming reduced hours. This is useful if you want to keep money in your pocket now rather than wait for a refund later.

Frequently Asked Questions

How long does a UK tax refund take?

Most refunds arrive within 4 to 8 weeks of HMRC receiving your claim or processing your Self Assessment return. Complex cases, those requiring investigation, or claims submitted by post can take 12 weeks or longer. You can check the status of your refund through your personal tax account or by phoning HMRC on 0300 200 3300.

Can I claim a refund for tax paid in previous years?

Yes, but there are time limits. You can usually claim back up to 4 years of overpaid tax, though this varies depending on your circumstances. Contact HMRC as soon as you realise you have overpaid, as delays can affect how far back you can claim.

What if I do not have a bank account for the refund?

HMRC will normally send a cheque to your address instead. Tell HMRC when you submit your claim that you do not have a bank account, or update your details through your personal tax account. Cheques can take an additional 1 to 2 weeks to arrive after HMRC issues them.

Do I need to pay tax on my refund?

No. A tax refund is money you have already paid; it is not new income. You do not pay tax on the refund itself.

What happens if HMRC says I owe tax instead of a refund?

If your claim reveals you have underpaid tax, HMRC will send you a bill for the amount owed plus interest. You can pay in full, request a payment plan, or appeal if you believe the calculation is wrong. Contact HMRC immediately if you receive an unexpected bill.