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EFILE Helpdesk Support for T1 Returns

If you have any EFILE web service questions regarding error messages and/or authentication problems for EFILE numbers and passwords (including those for T2 EFILERS), please make every attempt to contact your designated EFILE Helpdesk at the phone number indicated on your EFILE Renewal/Registration Confirmation page or as listed below.

For all other questions please contact the applicable enquiries telephone number.


EFILERS served by
tax services offices in:
Designated EFILE Helpdesk Hours of operation
Monday to Friday
British Columbia, Yukon, and Regina Surrey Tax Centre
9755 King George Blvd
Surrey, BC, V3T 5E6
Local calls: 604-585-7369
Long distance calls: 1-800-268-1822
Fax: 604-951-7011
8:15 a.m. to 4:30 p.m.
Alberta, Manitoba, Northwest Territories, London, Saskatoon, Thunder Bay, and Windsor Winnipeg Tax Centre
66 Stapon Road
Winnipeg MB R3C 3M4
Long distance calls:
1-800-461-1806
Fax: 204-984-5302
8:15 a.m. to 4:30 p.m.
Toronto Centre, Toronto East, Toronto North, Toronto West, and Sudbury**
(Sudbury/Nickel Belt only)
Sudbury Tax Centre
1050 Notre Dame Avenue
Sudbury ON P3A 5C1
Local calls: 705-670-6499
Long distance calls: 1-800-361-6283
Fax: 705-670-6500
8:15 a.m. to 4:30 p.m.
Laval, Montréal, Nunavut, Ottawa, Rouyn-Noranda, Sherbrooke, and Sudbury**
(northeastern Ontario only)
Shawinigan Tax Centre
P.O. Box 5000
Main Station
Shawinigan-Sud QC
G9N 8M1
Local calls: 819-537-5753
Long distance calls: 1-800-265-6201
8:15 a.m. to 4:30 p.m.
Chicoutimi,
Montérégie-Rive-Sud, Outaouais, Québec, Rimouski, and Trois-Rivières
Jonquière Tax Centre
P.O. Box 1900
Station PDF
Jonquière QC G7S 5J1
Local calls: 855-699-4640
Long distance calls: 1-855-699-4640
Fax: 418-699-0203 or 1-800-497-5806
8:15 a.m. to 4:30 p.m.
New Brunswick, Newfoundland and Labrador, Nova Scotia, Kingston, Peterborough, and St. Catharines St. John's Tax Centre
P.O. Box 12071
Station A
St. John's NL A1B 3Z1
Local calls: 709-772-5809
Long distance calls: 1-800-563-2331
Fax: 709-772-3611
8:15 a.m. to 4:30 p.m.
Prince Edward Island, Belleville, Hamilton, and Kitchener/Waterloo Summerside Tax Centre
Suite 105
275 Pope Road
Summerside PE C1N 6E8
Local calls: 902-432-5316
Long distance calls: 1-877-522-2061
Fax: 1-877-522-2062
8:15 a.m. to 4:30 p.m.

If you do not know which tax centre to contact, check the following Web page for T1 return processing workloads.

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