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, October 15, 2021 until Monday, October 18, 2021
  • Friday, February 4, 2022 until Monday, February 7, 2022
  • Friday, May 13, 2022 until Monday, May 16, 2022
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