Submit a complaint

Emergency response to COVID-19

Due to building closures in response to COVID-19, we are unable to access mailed or faxed complaints. If your situation is urgent, please call us at 1-866-586-3839 or submit an online complaint. We continue to work hard to respond to your complaints and thank you for your patience. Please note, response times may be lengthened during this time. For information on how to keep yourself and your families safe, please visit or call 1-833-784-4397. 

Please note:

Personal information such as your social insurance number or personal tax details should never be sent to the Office of the Taxpayers' Ombudsman.

What is a service complaint?

Do you feel your service rights have not been respected or you have not received fair treatment by the CRA? The Office of the Taxpayers’ Ombudsman (OTO) can help. We provide an objective, independent, and fair review of issues and uphold your service rights set out in the Taxpayer Bill of Rights. Service-related issues include:

  • receiving incomplete and/or inaccurate information
  • undue delays in processing
  • inability to access the CRA by telephone
  • poor employee behaviour
  • all relevant documents not taken into account
  • not receiving reasons for a decision
  • particular circumstances not considered by the CRA


Submit your service-related complaint online using our electronic complaint form

*Please note that by submitting a complaint online, we may request a signed Permission to Disclose form upon initial review of your complaint.

By mail

Complete and print the Taxpayers' Ombudsman – Complaint Form and mail it along with any supporting documentation to:

Office of the Taxpayers' Ombudsman
Suite 1000-171 Slater Street
Ottawa, Ontario
K1P 5H7

By fax

Complete and print the Taxpayers' Ombudsman – Complaint Form and fax it along with any supporting documentation to 1-866-586-3855 or 613-941-6319 (outside Canada and the United States).

Taxpayers' Ombudsman – Complaint Form

Do you have questions or need help?

If you need help completing the complaint form or would like to discuss the details of your service-related issue, call us at 1-866-586-3839.

If you require specific accessibility measures, please call 1-866-586-3839.

The Taxpayers' Ombudsman – Complaint Form (PDF) is available in multiple formats, such as large print, Braille, audio, and etext (accessible electronic text).

Find out more about the complaint process and our privacy commitment.

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