Tax overpayments and underpayments

If your P800 says you're due a refund

Your P800 tax calculation will tell you how you can get your refund.

If your P800 says you can claim online

Your P800 will tell you if you can claim your refund online. You’ll be sent the money within 5 working days - it’ll be in your UK account once your bank has processed the payment.

If you do not claim within 45 days, HM Revenue and Customs (HMRC) will send you a cheque. You’ll get this within 60 days of the date on your P800.

Contact HMRC if you cannot claim your refund online.

If your P800 says you’ll get a cheque

Your P800 will tell you if HMRC will send you a cheque. You do not need to make a claim.

You’ll get your cheque within 14 days of the date on your P800. If you’re owed tax from more than one year, you’ll get a single cheque for the entire amount.

If you do not have a P800

You can check how much Income Tax you should have paid.

Contact HMRC if you think you’ve paid too much tax. If they agree, they’ll send you a P800.