Complain about tax credits
You can complain about things like unreasonable delays or the way you’ve been treated.
How to complain
- complain online
- call to complain (telephone complaints are usually dealt with faster)
- write to complain
If you write, include:
- your National Insurance number
- your full name, address and telephone number
- details of what happened and when
- how you’d like your complaint settled
- the word ‘Complaint’ at the top of your letter
Send your complaint to:
HM Revenue and Customs
Tax Credit Office
If you do not agree with the response
Ask HMRC to review their response and send you a final decision.
If you’re unhappy with the final decision, you can contact the Independent Adjudicator.
You may be able to claim costs (for example for postage or phone calls) if HMRC admits they made a mistake. Ask them for details.