Paying your Self Assessment Tax
6th January 2026
With 31st January 2026 soon approaching, it is important to ensure that you make payment of your Self Assessment Tax that is due before this deadline to avoid interest on late payments.
You can find ways to pay here: https://www.gov.uk/pay-self-assessment-tax-bill.
If making payment by debit or credit card, you will need to quote your tax reference when making the payment to ensure that HMRC allocate this correctly.
Your Self Assessment reference number, also referred to as your UTR. This is shown on the payslip HMRC sends you and is located in the reference box. It can also be found on the front page of your Self Assessment Tax Return.
The reference number is made up of ten digits followed by the letter ‘K’ – for example 1234567890K – this reference is only an example and should not be used to make a payment.
You can now also pay your Self Assessment tax bill via the free and secure HMRC app, which can be downloaded at the App Store or Google Play. To find out more search ‘HMRC app’ on GOV.UK.
If you cannot pay your Tax Bill on time
Those who are unable to pay their tax bill in full can access support and advice on GOV.UK. HMRC may be able to help by arranging an affordable payment plan, known as Time to Pay. If possible, you should try to do this online; go to GOV.UK for more information. Alternatively, you can call the payment support service on 0300 200 3820. Unfortunately, agents are unable to do this on behalf of clients.
Disclaimer - All information in this post was correct at time of writing.
