UK Contact Phone Numbers

Tax Credits Contact Number: 0843 850 2478

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Contacting Tax Credits Customer Service

Opening Times

Tax Credits customer service can be contacted between 8am to 8pm, Monday to Friday and 8am to 4pm on Saturdays. It is closed on Sundays, Christmas Day, Boxing Day and New Year’s Day.

Ways to get in touch

There are a number of ways you can contact Tax Credits customer service

By Telephone

If you are calling from within the UK, the number is 0843 850 2478

If you are calling from abroad, the number is +44 2890 538 192

You can also call using a text phone on 0345 300 3909

The cost of calls to 0345 numbers is up to 12p per minute on landlines and up to 45p per minute using a mobile phone. Calls from abroad may be significantly higher and you should check with your provider.

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By Online Chat

HMRC have recently introduced an online chat facility which can be accessed on their website. Visit this page for more details.

By Post

There are different postal addresses for Tax Credits, depending on what you want to do.

Renewal Forms

If you need a Tax Credit renewal form, you can obtain one by writing to this address:

HM Revenue and Customs - Tax Credit Office

Comben House

Farriers Way


L75 1AX

United Kingdom

Making a complaint to HMRC

If you need to make a complaint about your Tax Credits, contact HMRC at:

HM Revenue and Customs - Tax Credit Office



United Kingdom

Making a new Tax Credit Claim

HM Revenue and Customs - Tax Credit Office


L75 1AZ

United Kingdom

Useful Videos

What are Tax Credits?

Watch this useful video from the BBC which explains what Working Tax Credits and Child Tax Credits are.

Renewing Tax Credits online

Here’s a recent video from HMRC about renewing your Tax Credits

How HMRC Operates

Get a better understanding of Tax Credits by finding out how a large organisation like HM revenue and Customs operates.

What you can contact HMRC Tax Credits for

You can contact HMRC Tax Credits to do any of the following things:

  • get a new claim form
  • renew your existing claim
  • enquire about an existing claim
  • make inquiries about payments and overpayments
  • tell HMRC about changes to your personal circumstances that might affect your Tax Credits
  • complaint about Tax Credits

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Problems with calling HMRC about Tax Credits

HMRC receive many thousands of calls each day which can cause the lines to very busy and leave people in long queues. To save time and expense, it is best to call them on Tuesdays and Thursdays from 8.30 to 10.30 in the morning and from 2.00 to 4.00 in the afternoon. This is when they are least busy meaning you won’t have to queue as long.

How to get put through to the right department

HMRC have an automated answering system that uses voice recognition software to understand what you say. It will ask you simple questions requiring simple answers to help get you through to the right people. Remember to speak slowly, clearly and loud enough to be heard.

If the speech recognition software does not understand you, it may connect you with an operator who can deal with your enquiry for you.

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Have the information you need

To reduce the length and the cost of your call, be prepared for the questions the Tax Credit staff will ask you by having all the relevant information at your fingertips. These include your name, address, Tax Reference Numbers, National Insurance Numbers, Employee Number and any references from previous correspondence. Also, make sure you have the names of other Tax Credit staff you have dealt with in the past.

When you contact HMRC about Tax Credits make sure you keep accurate records of any telephone calls or live chat conversations. Make a note of the names of people you speak to, the dates and times of conversations, and an account of the content of the conversation, especially taking note of any agreed actions that were to be taken by either yourself or HMRC. This can be useful if you need to contact them again or make a complaint.

Making a complaint to HMRC about Tax Credits

Renew Tax Credits

If you wish to complain to HMRC about your Tax Credit you should do so, in the first instance, by telephone. Remember to take the name of the person you are talking to, as it can be easier if you always speak to the same person. To complain successfully, you should tell them what your complaint is and what resolution you would expect. If you are not satisfied with the response, ask to speak to a more senior member of the team.

It is important to stay calm when making a complaint; becoming annoyed and angry won’t help your case and may get you into trouble. Remember that HMRC will record your call.

If your problem remains unresolved, you should proceed by writing a formal complaint to the Complaints Team, Tax Credit Office, Preston, PR1 4AT. Keep a copy of the letter for yourself before posting the original. You should receive confirmation that your complaint is being dealt with and the name and number of the person dealing with it.

Informing HMRC of changes to your circumstances:

Help for those with additional needs:

Help managing your Tax Credits: