Canada Revenue Agency
www.cra.gc.ca
Common menu bar links
Hours of service
- Corporation Internet Filing hours of operation
- Corporation Internet Filing Help Desk 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.
| Corporations resident in Canada | 1-800-959-2803 |
| Non-resident corporations We accept collect calls. |
1-819-536-2360 or 1-204-984-3594 |
If you received one of the following error messages while transmitting your corporation income tax return, please contact the EFILE Helpdesk for assistance. See EFILE Helpdesk Support for hours of service and contact information.
- 151 - The EFILE password provided is not valid.
- 153, 158 and 159 - The EFILE On-Line number provided is not valid.
- 152 - Your EFILE On-Line account is suspended.
- 156 - Your EFILE On-Line password has expired.
- 157 - You are not currently permitted to file the return using your EFILE password as suitability screening has not been completed.
