Corporation Tax: general enquiries


Corporation Tax

Check the steps to take if you need to pay Corporation Tax.

Pay your Corporation Tax bill

Find out ways to pay your Corporation Tax bill. If you’re having problems paying due to coronavirus (COVID-19), contact our helpline.


Speak to an adviser online about general Corporation Tax enquiries.


Call HMRC for help with general Corporation Tax enquiries.

You’ll need your 10 digit Unique Tax Reference (UTR) when you call.

Our advisers cannot give you this reference over the phone. You can get your UTR:

  • from your agent
  • on letters from HMRC
  • online (sign in using Government Gateway)

You can also ask for a copy of your Corporation Tax UTR if you do not know it.

If you are a Large Business, please contact your Customer Relationship Manager direct.

0300 200 3410

Outside UK:
+44 151 268 0571

Opening times:

Our phone line opening hours are:

Monday to Friday: 8am to 6pm

Closed on Saturdays, Sundays and Bank Holidays.

You can also find out information in:

Find out about call charges


Write to HMRC for help with general Corporation Tax enquiries.

If you have a Unique Tax Reference include it in your letter and on the first page of any documents you send.

You do not need to include a street name, city name or PO box when writing to this address.

Couriers should use a different address.

Corporation Tax Services
HM Revenue and Customs
United Kingdom

If you’re replying to a letter you’ve received about your Corporation Tax, you should use the address on that letter.