Hours of service
Corporation Internet Filing hours of operation
The Corporation Internet Filing service is available 21 hours a day, Monday to Saturday, and 20 hours on Sunday. Corporation income tax returns may be filed over the Internet only during the following hours:
| Region | Monday to Saturday | Sunday |
|---|---|---|
| British Columbia and Yukon (Pacific Time) | 3:00 a.m. to midnight | 3:00 a.m. to 11 p.m. |
| Alberta, Northwest Territories, and Nunavut (Mountain Time) | 4:00 a.m. to 1:00 a.m. | 4:00 a.m. to midnight |
| Saskatchewan, Manitoba, Northwest Territories, and Nunavut (Central Time) | 5:00 a.m. to 2:00 a.m. | 5:00 a.m. to 1:00 a.m. |
| Ontario, Quebec, and Nunavut (Eastern Time) | 6:00 a.m. to 3:00 a.m. | 6:00 a.m. to 2:00 a.m. |
| New Brunswick, Nova Scotia, and Prince Edward Island (Atlantic Time) | 7:00 a.m. to 4:00 a.m. | 7:00 a.m. to 3:00 a.m. |
| Newfoundland and Labrador (Newfoundland Time) | 7:30 a.m. to 4:30 a.m. | 7:30 a.m. to 3:30 a.m. |
| Non-Resident of Canada (Eastern Time) | 6:00 a.m. to 3:00 a.m. | 6:00 a.m. to 2:00 a.m. |
Corporation Internet Filing Help Desk hours of service
The Help Desk provides bilingual service and is available, Monday to Friday, except statutory holidays, from 9:00 a.m. to 4:00 p.m. local time.
| Calls from Canada | 1-800-959-2803 |
|---|---|
| Calls from outside of Canada We accept collect calls. |
1-613-221-3223 |
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