Tax credits: general enquiries


Manage your tax credits

This service is the easiest and quickest way to:

You’ll need your National Insurance number.

Ask HMRC online

Ask HMRC’s digital assistant to find information on:

  • tax credits
  • renewals
  • Universal Credit

If the digital assistant cannot help, you can ask to transfer to a webchat with an HMRC adviser if they’re available.


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
Sunday: 9am to 5pm
Closed on bank holidays.


Call HMRC:

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.

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

0345 300 3900

Outside UK:
+44 2890 538 192

Opening times:

Our phone line opening hours are:

Monday to Friday: 8am to 6pm

Closed on Saturdays, Sundays and bank holidays.

If your call is not urgent please use webchat to contact us.

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