If you need to call the CRA

During this tax season, CRA’s contact centres received more than 7 million calls.. If you need to call CRA, start by checking telephone wait times. CRA offers estimated wait times on the Contact the CRA page. Please note that starting on May 10, 2025, hours of service for the CRA contact centres will be adjusted and open Monday to Friday from 8:00 am to 8:00 pm, Eastern Time and closed on weekends and holidays.

More than 96% of calls made to the enquiries contact centres occur Monday to Friday between 8:00 am and 8:00 pm, Eastern Time. An adjustment to hours of service is being made to increase efficiency, answer more calls during peak hours and ensure Canadians are receiving service in the official language of their choice.

Source: https://www.canada.ca/en/revenue-agency/news/newsroom/tax-tips/tax-tips-2025/tax-filing-deadline-passed-still-file-2024-income-tax-benefit-return.html