Self Assessment: general enquiries

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Online forms

• Tell HMRC you've changed name or address

If HMRC needs to contact you about anything confidential they’ll reply by phone or post.

Online help and support

You can also watch videos and join webinars for help with Self Assessment.

Webchat

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Advisers are available to chat. Speak to an adviser now.

Phone

• Telephone: 0300 200 3310
• Textphone: 0300 200 3319
• Outside UK: +44 161 931 9070

Call HMRC for advice on Self Assessment.

If you have a National Insurance number and Self Assessment Unique Taxpayer Reference (UTR) have them with you when you phone.

Find out about call charges

Opening times:

8am to 8pm, Monday to Friday
8am to 4pm Saturday

Closed Sundays, Christmas Day, Boxing Day and New Year’s Day

Contact Self Assessment: online services for problems filing your tax return online or if you’ve lost your online service user name or password.

Get help dealing with HMRC if you have additional needs.

Post

Write to HMRC at this address with all Self Assessment queries except complaints.

You don’t need to include a street name, city name or PO box when writing to this address.

Couriers should use a different address.

Self Assessment

HM Revenue and Customs

BX9 1AS

United Kingdom