Tax credits: general enquiries


Manage your tax credits

This service is the easiest and quickest way to:

You’ll need your National Insurance number.

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.

You can also find out information in:

Ask HMRC online

Ask HMRC’s digital assistant to find information on:

  • tax credits
  • renewals
  • Universal Credit


You can use Twitter to get general help from HMRC. We cannot discuss specific cases or an individual’s tax affairs, so please do not give any personal details.

Start your tweet with @HMRCcustomers

Twitter opening times:

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

Closed on Sundays and bank holidays.


Call HMRC:

You can use Relay UK if you cannot hear or speak on the phone, dial 18001 then 0345 300 3900. Find out more on the Relay UK website.

Before you call

This helpline uses speech recognition software, so you will be asked why you are calling HMRC. If you cannot use speech recognition software, you can get help from HMRC if you need extra support.

This helpline may also ask you some security questions. Make sure your personal details and address are up to date in your personal tax account or you could fail telephone security. If you do not have a personal tax account, you can create one before you check your details.

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

0345 300 3900

Outside UK:
+44 2890 538 192

Opening times:

Our phone line opening hours are:

Monday to Friday: 8am to 6pm

Closed weekends and bank holidays.

Best time to call:

Phone lines are usually less busy Tuesday to Thursday from 2pm to 4pm.

Find out about call charges


Tax credit renewal forms

Send tax credit renewal forms to this address. You do not need to include a street name or PO box.

Couriers should use a different address.

Tax Credit Office
HM Revenue and Customs
United Kingdom

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.

Couriers should use a different address.

HM Revenue and Customs
Tax Credit Office
United Kingdom