Income Tax: general enquiries

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Online forms

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

Read about the P800 calculation if you’ve received a P800 and have any questions.


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:

8am and 8pm, Monday to Friday
8am and 4pm Saturdays
Closed Sundays


Webchat is unavailable at the moment because of technical problems.


  • Telephone: 0300 200 3300
  • Textphone: 0300 200 3319
  • Outside UK: +44 135 535 9022

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

  • PAYE coding notices
  • Marriage Allowance
  • changing your personal details

Have your National Insurance number with you when you phone.

Find out about call charges

Opening times:

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

Closed bank holidays.

Best time to call:

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


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
United Kingdom

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Don’t include personal or financial information like your National Insurance number or credit card details.