Working Tax Credits Contact number: 0345 300 3900

Phone the HMRC on their contact number for working tax credits applications 0345 300 3900 to discuss the outcome of an application to the UK benefits system or to ask for an online link to a calculator tool in order to confirm your eligibility to claim.


About the UK Benefit

Working Tax Credits are a United Kingdom state benefit for people who work but are on low income. The benefit is paid by the UK HM Revenue and Customs (HMRC) to top up wages and despite their name, are not to be confused with the tax credits that are linked to a person’s tax bill. Notably, as of 2017, Working Tax Credit will be integrated and replaced by the new Universal Credit benefit during a gradual roll-out scheme.


HMRC: Working Tax Credit Enquiries – 0345 300 3900

Call HMRC on their working tax credit enquiries number 0345 300 3900 to contact an advisor for over-the-phone support regarding your benefit claim. For instance, callers can use this number to ask for a working tax credit application form to be sent to their home address after confirming their eligibility for the UK benefit. Therefore, you may also wish to ask an advisor for a breakdown of how much you’ll be paid once giving essential information such as your total income in the previous tax year over the phone. It should be noted that you will not be able to apply for working tax credits without details of your National Insurance number on hand. Alternatively, you should call HMRC to report a change of circumstances that may alter how much you will be paid in the way of your benefit entitlement or if you longer qualify for support at all. If you have made a recent claim then you may wish to ask a HMRC advisor when you are likely to receive a decision regarding your application before asking when you’ll be paid if successful.

You should also phone the HMRC to ask for technical assistance when logging into the online portal to manage your tax credits. For instance, if you have forgotten your National Insurance number or your HMRC account details then you should use this number to ask for the necessary support. However, it is advised that you register any complaints following your frustration with the working tax credits application process or dissatisfaction with the outcome of your claim on the address found at the bottom of this page.


Information about Call Costs and Contact Hours

The working tax credit helpline uses a 03 area code that will charge callers the same standard per-minute rate as any other local number that is made from a UK mobile or landline telephone.

Moreover, callers will be glad to know that they can get in touch with a HMRC advisor any day of the week as working tax credits helpline is available to be contacted during the opening hours of 8am – 8pm, Monday to Friday, 8am – 4pm Saturdays and 9am to 5pm on Sundays.


HMRC Phone Numbers

HMRC Department UK Phone Number
Working Tax Credit Enquiries 0345 300 3900
HMRC General Enquiries 0300 200 3300
National Insurance Enquiries 0300 200 3500
Self-assessment Enquiries 0300 200 3310
Tax Credits Enquiries 0345 300 3900
Child Benefit Enquiries 0300 200 3100
VAT Enquiries 0300 200 3700


Write to the HMRC

You are advised to make a complaints regarding your working tax credit application in writing before sending a written appeal to the HMRC Head Office at the following UK postal address:

HM Revenue and Customs,
BX9 1AS,
United Kingdom.