Submit a complaint
Personal information such as your social insurance number or personal tax details should never be sent to the Office of the Taxpayers' Ombudsman.
Submit your service-related complaint online using our electronic complaint form.
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
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).
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.
For information about filling out the complaint form, see our help file. You can also order printed copies and multiple formats of the Taxpayers' Ombudsman – Complaint Form (PDF), such as large print, Braille, audio, and etext (accessible electronic text), by calling 1-866-586-3839.
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