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.

If you’ve received a P800 and have any queries, you can read about the P800 calculation or watch a video.


  • 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 and changing your personal details.

Find out about call charges

Opening times:

8am to 8pm, Monday to Friday
8am to 4pm Saturday

Closed Sundays and bank holidays

Best time to call:

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

Have your National Insurance number with you when you phone.


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, eg your National Insurance number or credit card details.