Self-employed: Income Tax
Online
Tell HMRC about a change to your personal details
If HMRC needs to contact you about anything confidential they鈥檒l reply by phone or post.
Phone
Call HMRC if you鈥檙e 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鈥痗reate one before you check your details.
Telephone:
0300 200 3300
Textphone:
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.
Post
Write to HMRC at the address shown on the most recent letter they have sent you with questions about Income Tax if you鈥檙e self-employed.
If you do not have a letter write to this address.
HM Revenue and Customs 鈥� Self Assessment
PO Box 4000
Cardiff
CF14 8HR
United Kingdom