EFILE transmission service – Hours of operation
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EFILE transmission service – Hours of operation
The Canada Revenue Agency's EFILE, ReFILE and T1135 web services are now closed for the electronic filing of your clients' initial and amended T1 personal income tax and benefits returns and T1135 forms for T1. These services will re-open on Monday, February 23, 2026 at 8:30 a.m. (Eastern Time).
The Canada Revenue Agency's T3 EFILE and T1135 web services are now closed for the electronic filing of your clients' T3 Trusts returns and T1135 forms for T3. These services will re-open on Monday, February 23, 2026 at 8:30 a.m. (Eastern Time).
The services are available 21 hours a day. Due to daily maintenance activities, the services are not available for three hours a day from 3 am to 6 am (Eastern time).
| Time zone | Monday to Sunday |
|---|---|
| Pacific time | 3:00 a.m. to midnight |
| Mountain time | 4:00 a.m. to 1:00 a.m. |
| Central time | 5:00 a.m. to 2:00 a.m. |
| Eastern time | 6:00 a.m. to 3:00 a.m. |
| Atlantic time | 7:00 a.m. to 4:00 a.m. |
| Newfoundland time | 7:30 a.m. to 4:30 a.m. |
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2026-01-30