EFILE Helpdesk support for T1 Returns

For any EFILE web service questions regarding error messages and/or authentication problems for EFILE numbers/passwords (including those for T2 tax preparer for EFILE), please contact your designated EFILE Helpdesk at the phone number indicated on your EFILE Renewal/Registration Confirmation page or as listed below.

For any problems with the Auto-fill my return login process, contact the Individual income tax enquiries line.

For questions, or help filing your T2 Corporation income tax returns, please consult the Corporation Internet Filing Help Desk phone numbers and hours of service.

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

Alberta, British Columbia,

London, Manitoba,

Northwest Territories, 

Regina, Saskatoon,

Thunder Bay, Windsor,

and Yukon

Winnipeg Tax Centre
66 Stapon Road
Winnipeg MB R3C 3M2
Local and long distance calls:
Fax: 204-984-5302

Central Time

8:15 a.m. to 6:30 p.m.


Barrie, Kingston,

New Brunswick, 

Newfoundland and Labrador,

Nova Scotia, Peterborough,

St. Catharines, Toronto Centre,

Toronto East, Toronto North,

Toronto West, and

(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 or 1-855-338-5495

Eastern Time

7:00 a.m. to 4:30 p.m.


 Laval, Montréal,

Nunavut,  Ottawa,


Sherbrooke, and

(northeastern Ontario only)

Shawinigan-Sud Tax Centre
4695 Shawinigan-Sud Boulevard
Shawinigan QC G9P 5H9
Local calls: 819-537-5753
Long distance calls: 1-800-265-6201
Fax: 819-536-5487 or 1-888-959-2929

Eastern Time

8:15 a.m. to 4:30 p.m.




Outaouais, Québec,

Rimouski, and Trois-Rivières

Jonquière Tax Centre
2251 René-Lévesque Blvd
Jonquière QC G7S5J2
Local and long distance calls:
Fax: 418-699-0203 or 1-800-497-5806

Eastern Time

8:15 a.m. to 4:30 p.m.


 Belleville, Hamilton, 


and Prince Edward Island

Prince Edward Island Tax Centre
275 Pope Road – Suite 105
Summerside PE C1N 6A2
Local calls: 902-432-5316
Long distance calls: 1-877-522-2061
Fax: 902-432-5836 or 1-877-522-2062

Atlantic Time

8:15 a.m. to 4:30 p.m.



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