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

  • HMRC Self Assessment Helpline:
    0300 200 3310

  • Outside the UK:
    +44 161 931 9070

  • Self Assessment Orderline:
    0300 200 3610

  • Outside the UK:
    +44 161 930 8331

  • Fax number:
    0845 900 0604

  • Self Assessment Paying Helpline:
    0845 366 7816

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:

    0300 200 3822

  • Outside the UK:
    +44 161 931 9070

HMRC Self Assessment Office Opening Times

  • Office opening times are:

    Monday to Saturday: 8.00am to 10.00pm
    Sunday: 9.00am to 10.00pm
    Closed: Christmas Day, Boxing Day, New Year’s Day and Bank Holidays

HMRC Self Assessment Office Address

  • The HMRC Self Assessment main postal address is:

    Self Assessment
    HM Revenue and Customs
    BX9 1AS
    United Kingdom

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.