Tax overpayments and underpayments
If your tax calculation letter (P800) says you’re due a refund
Your tax calculation letter (also known as a P800) will tell you how you can get your refund.
If your tax calculation letter says you can claim online
You can claim using the online bank transfer service or request a cheque online. You’ll need:
- the reference number from your P800 letter
- your National Insurance number
Other ways to claim
You can also claim a refund:
- through your personal tax account
- through the HMRC app
- by contacting HMRC and asking them to send you a cheque
When you’ll get your refund
You’ll be sent the money within:
- 5 working days if you’ve claimed online
- 6 weeks if you’ve asked HMRC to send you a cheque
If your tax calculation letter says you’ll get a cheque
Your tax calculation letter will tell you if HMRC will send you a cheque.
You do not need to contact HMRC to make a claim - you’ll automatically get the cheque by post.
When you’ll get your refund
You’ll get your cheque within 14 days of the date on your letter.
If you’re owed tax from more than one year, you’ll get a single cheque for the entire amount.