Self-employed: Income Tax


Tell HMRC about a change to your personal details

Tell HMRC you have stopped being self-employed

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


Call HMRC if you’re self-employed and have an Income Tax enquiry or need to report changes to your personal details.

Before you call

This helpline may ask you some security questions. Make sure your personal details and address are up to date in your personal tax account or you could fail telephone security. If you do not have a personal tax account, you can create one before you check your details.

0300 200 3300

0300 200 3319

Outside UK:
+44 135 535 9022

Opening times:

Monday to Friday: 8am to 6pm

Closed on Saturdays, Sundays and bank holidays.

You can also find out information in either your:

Best time to call:

Phone lines are less busy before 10am, Monday to Friday.

Find out about call charges


Write to HMRC at the address shown on the most recent letter they have sent you with questions about Income Tax if you’re self-employed.

If you do not have a letter write to this address.

HM Revenue and Customs — Self Assessment
PO Box 4000
CF14 8HR
United Kingdom