Before you make a complaint, please read Before contacting us and Making a complaint.
Office/mailing address:
Taxpayers' Ombudsman
Suite 724
50 O'Connor Street
Ottawa ON K1P 6L2
Canada
Office hours:
8:15 a.m. to 4:30 p.m. (Eastern Time)
Monday to Friday (except holidays)
Telephone:
1-866-586-3839 (Canada and the United States)
613-946-2310 (outside Canada and the United States)*
* Please note that we accept collect calls.
Hours of telephone service:
8:15 a.m. to 4:30 p.m (Eastern Time)
Monday to Friday (except holidays)
Facsimile:
1-866-586-3855 (Canada and the United States)
613-941-6319 (outside Canada and the United States)