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Agents and HMRC

Help for tax advisers in their work with HMRC, including contact information, links to HMRC's toolkits and support in how to make complaints.

HMRC contact information

HMRC contact information, including telephone numbers, online options and postal addresses, together with tips.

HMRC toolkits

Learn about the HMRC toolkits that provide guidance on areas of error frequently seen in tax returns.