Submit a complaint

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.

Online

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
600-150 Slater Street
Ottawa, Ontario
K1A 1K3
Canada

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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