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Hours of service
The Corporation Internet Filing service is available 21 hours a day, Monday to Saturday, and 20 hours on Sunday. Corporation Internet Filing hours of operationFor technical reasons, corporation income tax returns may be filed over the Internet only during the following hours:
If you need assistance, call the Corporation Internet Filing Help Desk toll free at 1-800-959-2803 during our Help Desk hours of service. Corporation Internet Filing Help Desk hours of serviceThe Corporation Internet Filing Help Desk can answer your questions about Corporation Internet Filing. 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. Contact the Help Desk toll free at 1-800-959-2803. |
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