SA100 : How do I add my bank details so HMRC send my refund to my bank account?
You can add your bank account details, for receiving a refund from HMRC, on the 'Almost there' page. Please:
1. Click SAVE & CONTINUE then YES
2. Select YES to the question: Would you like to receive repayment via bank transfer?
update the details as required. Please note this must be a UK bank account.
Your bank details will then be added to your tax return.