Self Assessment

HMRC may require you to complete a self assessment tax return for various reasons, from being self employed to having job expenses when you are employed under PAYE.

On this page you will find information about:

HMRC Self Assessment Helpline Phone Numbers

Self Assessment Payment Helpline Phone Numbers

The Self Assessment payment helpline is specifically for people who cannot pay their tax bill on time.

  • Self Assessment Payment Helpline:
    0845 366 1204

  • Outside the UK:
    +44 12 7420 4880

HMRC Self Assessment Office Opening Times

  • Office opening times are:

    Monday to Friday, 8.00 am to 8.00 pm
    Saturday, 8.00 am to 4.00 pm
    Sunday, Closed
    Closed Christmas Day, Boxing Day and New Year’s Day and Bank Holidays.

HMRC Self Assessment Office Address

  • The HMRC Self Assessment main postal address is:

    HM Revenue & Customs
    Self Assessment
    PO Box 4000
    CF14 8HR

For further Tax Contacts, please follow the links below:

More Info

Tax Refunds

If you are new to self assessment and need to register for online services or have completed a tax return for many years and have a query, you can find the phone numbers you need to contact HMRC here.