Pay a Self Assessment penalty
By debit or corporate credit card online
You can pay online.
There’s a fee if you pay by corporate credit card or corporate debit card. The fee is not refundable.
There’s no fee if you pay by personal debit card.
You cannot pay by personal credit card.
Use your 11-character payment reference when you pay. This is your 10-digit UTR followed by the letter ‘K’.
You’ll find it either:
- in your HM Revenue and Customs (HMRC) online account
- on the notice of penalty assessment HMRC sent you
If you use the wrong reference number your payment may be delayed or used to pay a different tax bill that you owe. If your payment has paid the wrong tax bill, contact Self Assessment general enquiries to ask for your payment to be moved.
HMRC will accept your payment on the date you make it, including on bank holidays and weekends, not the date it reaches their account.