HM Revenue & Customs (HMRC)
Calling HM Revenue & Customs (HMRC) at +443453021429 connects you to the Tax Credit Overpayments department. This line is specifically for addressing issues related to tax credit overpayments, such as disputing overpayments, requesting calculation notices, and arranging repayments. Common reasons for calling include challenging overpayment decisions, understanding how overpayments were calculated, and setting up repayment plans. Wait times can be long, especially during peak hours or after major announcements. For shorter wait times, it is advisable to call early in the morning or mid-week. If your debt has been transferred to the Department for Work and Pensions (DWP), you should contact them directly for repayment queries.
Updated 4 Nov 2025
Expected outcomes
- Dispute tax credit overpayment
- Request calculation notice
- Arrange repayment plan
- Request mandatory reconsideration
- Clarify debt handling department
Call preparation
Assemble everything before you dial. These requirements are verified by our call analysts and updated as organizations change their scripts.
- Dispute form (TC846)
- Personal details
- Overpayment reference
- National Insurance number
- Bank details
- Supporting evidence
Known issues
Callers often experience long wait times, particularly during peak hours. To avoid this, try calling early in the morning or mid-week. There is frequent confusion over whether HMRC or DWP handles transferred debts; ensure you know which department to contact. Disputing overpayments can be challenging due to unclear guidance and slow responses. It is crucial to use the official dispute forms and keep records of all correspondence. If you encounter difficulties, ensure you have all necessary documentation and evidence ready when contacting HMRC.
