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Tax credits: general enquiries

Contact HMRC for help with tax credits, to report changes to your circumstances or to complain about the service HMRC has provided relating to tax credits.

Updates to this page

From:
HM Revenue & Customs
Published:
14 May 2025
Last updated:
22 May 2026
Show all updates

  1. The phone number to call if you are outside of the UK has been updated. Information has been updated to confirm you can phone HMRC if you want to complain about the service HMRC has provided relating to tax credits.

  2. The phone number to call HMRC for general enquiries about tax credits and to report any changes that affect your claim has been updated.

  3. The Digital Assistant online service for tax credits queries is no longer available.

  4. Phone line opening times over Christmas and New Year have been added.

  5. The phone line opening times have changed from 8am to 6pm to 8am to 5pm.

  6. First published.

Tax credits ended on 5 April 2025. No more payments will be made. You’ll have been sent a letter if you are eligible for Universal Credit or Pension Credit instead.

Online

Check when you can expect a reply from HMRC
Find out when you can expect to receive a reply from HMRC to a query or request you’ve made.

X (previously known as Twitter)

You can use X to ask HMRC questions. We cannot discuss specific cases or individual tax affairs, so do not give any personal details.

Start your post with @HMRCcustomers

Opening times:

  • Monday to Friday: 8am to 8pm
  • Saturday: 8am to 4pm

Closed on Sundays and bank holidays.

Phone

Call HMRC:

  • if you have a general enquiry about your tax credits
  • if you want to complain about the service HMRC has provided relating to tax credits

You can use Relay UK if you cannot hear or speak on the phone, dial 18001 then 0300 322 9129. Find out more on the Relay UK website.

Before you call

You may be asked some security questions about your tax credits. Make sure you have your tax credits information when you call us or you could fail telephone security.

Telephone: 0300 322 9129

Outside UK: +44 300 322 9129

Opening times: Monday to Friday, 8am to 5pm. Closed bank holidays.

Find out about call charges

Get help from HMRC if you need extra support.

Post

Complaints or change of circumstances

Send complaints or changes in your circumstances to this address. You do not need to include a street name or PO box.

Make it clear why you’re writing. For example, write ‘change of circumstances’ or ‘complaint’ at the top of your letter.

HM Revenue and Customs
Tax Credit Office
BX9 1ER
United Kingdom

Find out the address to use if you’re using a courier instead of Royal Mail.

Related content

Guidance

HMRC contacts