HM Revenue & Customs (HMRC)
Calling HM Revenue & Customs (HMRC) at +443002003310 connects you to the Self Assessment department, where you can register for Self Assessment, file tax returns, and resolve payment queries. This line is crucial for individuals and businesses needing to manage their tax obligations. Common reasons for calling include registration assistance, filing returns, and payment inquiries. Expect longer wait times in January and around major deadlines. To avoid delays, consider calling outside peak hours or using online services when possible.
Updated 4 Nov 2025
Expected outcomes
- Register for Self Assessment
- File tax return
- Resolve payment queries
- Get registration guidance
- Inquire about deadlines
- Seek documentation advice
Call preparation
Assemble everything before you dial. These requirements are verified by our call analysts and updated as organizations change their scripts.
- Unique Taxpayer Reference
- National Insurance number
- Government Gateway ID
- Income records
- Payment reference
- Personal details
Known issues
Callers often experience long wait times, especially near Self Assessment deadlines. To mitigate this, try calling outside peak hours or use online services when available. Difficulty reaching an agent is another common issue due to automated menus and limited availability. Ensure you have all necessary information ready to expedite the process. Persistence through the menus can help in speaking to an agent. These steps can help reduce frustration and improve your experience.
