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Wednesday, 3 October 2023

Contact details for help and advice with completing your tax return and for general advice about Self Assessment.

Contact point

Self Assessment and your tax return
Address

You can write to HM Revenue & Customs by using the postal address on recent correspondence from them.

If you don't have any recent correspondence write to:

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

0845 900 0444
Website (opens new window)

https://www.hmrc.gov.uk/sa/index.htm
Opening Hours

Monday to Friday 8.00 am to 8.00 pm.
Saturday 8.00 am to 4.00 pm.
Closed Sundays, Christmas Day, Boxing Day and New Year's Day