Hours of service
The CRA online 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).
The CRA online services may also be unavailable during the following maintenance schedule:
- Friday, February 3, 2023 until Monday, February 6, 2023
- Friday, May 12, 2023 until Monday, May 15, 2023
- Friday, October 13, 2023 until Monday, October 16, 2023
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