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 7, 2020 until Monday, February 10, 2020
• Friday, May 8, 2020 until Monday, May 11, 2020
• Friday, October 16, 2020 until Monday, October 19, 2020