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.

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 Saturday: 8am to 8pm

Closed on Sundays and bank holidays.


Call HMRC:

You can also use Relay UK if you cannot hear or speak on the phone: dial 18001 then 0345 300 3900.

Before you call

This helpline may 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 already have a personal tax account, you can set one up.

When you call

This helpline uses speech recognition software, so you will be asked why you are calling HMRC. Try to answer with short phrases and words, for example:

  • ‘change my address’
  • ‘question about claiming tax credits’
  • ‘renewing tax credits’

If you cannot use speech recognition software, find out how to deal with HMRC if you need extra support.

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.

You can also find out information in:

Best time to call:

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

Get help from HMRC if you need extra support.

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 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