Income Tax: general enquiries

Online

Tell HMRC about changes that could affect your tax code

This service is part of the personal tax account, and you can use it to check:

  • your tax code
  • the information HMRC holds about your employment
  • an estimate of how much tax you’ll pay

Tell HMRC you've changed name or address

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

Twitter

You can use Twitter to get general help from HMRC. We can’t discuss specific cases or an individual’s tax affairs, so please don’t give any personal details.

Start your tweet with @HMRCcustomers

Opening times:

Monday to Saturday: 8am to 10pm
Sunday: 9am to 10pm

Webchat

Webchat is unavailable at the moment because of technical problems.

Phone

Call HMRC for help with questions about Income Tax, including:

  • PAYE coding notices
  • tax overpayments or underpayments
  • P800 tax calculations

You can also get help with identification and verification problems if you’re trying to register for a personal tax account.

Have your National Insurance number with you when you phone.

Telephone:
0300 200 3300

Textphone:
0300 200 3319

Outside UK:
+44 135 535 9022

Opening times:

Monday to Friday: 8am to 8pm
Saturday: 8am to 4pm
Sunday: 9am to 5pm

Closed bank holidays, Easter Sunday, Christmas Day, Boxing Day and New Year’s Day.

Best time to call:

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

Find out about call charges

Post

Write to HMRC at this address for all Income Tax 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.

Pay As You Earn and Self Assessment
HM Revenue and Customs
BX9 1AS
United Kingdom