Tax credits: general enquiries


Manage your tax credits

This service is the easiest and quickest way to:

You’ll need your National Insurance number.

Use HMRC’s automated assistant Ask Ruth


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


Advisers can only talk to you about Child Tax Credit and Working Tax Credit. They won’t be able to transfer you to another webchat team.

Webchat is unavailable at the moment because of technical problems.


Call HMRC:

You can find out if you qualify for tax credits by phoning the helpline.

0345 300 3900

0345 300 3909

Outside UK:
+44 2890 538 192

Opening times:

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

Best time to call:

Phone lines are usually less busy:

  • Tuesday to Thursday between 8.30am and 10.30am, and 2pm to 4pm
  • on Sundays

HMRC may ask if you want to add voice identification to your account. You can find out more in the Voice Identification Privacy Notice.

Find out about call charges


Tax credit renewal forms

Send tax credit renewal forms to this address.

You don’t need to include a street name or PO box:

Tax Credit Office
HM Revenue and Customs
United Kingdom

Complaints or change of circumstances

Send complaints or changes in your circumstances to this address.

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

You don’t need to include a street name or PO box:

HM Revenue and Customs
Tax Credit Office
United Kingdom

New tax credit claims

Send new tax credit claims to this address.

You don’t need to include a street name or PO box:

Tax Credits Claims
HM Revenue and Customs
United Kingdom