The simplest way to pay HMRC for your self-assessment income tax bill is by bank transfer.
HMRC Bank details:
Sort code | Account number | Account name |
---|---|---|
08 32 10 | 12001039 | HMRC Cumbernauld |
08 32 10 | 12001020 | HMRC Shipley |
You can use either HMRC bank account.
The most important is the payment reference. This is your 10-digit Unique Taxpayer Reference (UTR) followed by the letter 'K'.
https://www.gov.uk/pay-self-assessment-tax-bill/bank-details