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If your device is more than five years old, your system may need an upgrade

Over the next two years, the computing industry will eliminate certain security protocols that are more than 10 years old. The Canada Revenue Agency (CRA) regularly updates its secure online services to ensure they feature the highest security standard, which is Transport Layer Security (TLS) 1.2. The CRA encourages you to upgrade to TLS 1.2 so that your system is as secure as possible. For information on whether or not you may need to upgrade, go to Setting up your device to use CRA online services.

Browser requirements

To ensure that you have uninterrupted access to the CRA login services, your browser must:

  • support TLS 1.0 or higher (TLS 1.2 is recommended);
  • have TLS 1.0 or higher enabled;
  • have Cookies enabled; and
  • have JavaScript enabled.

If your browser does not meet these requirements, you may need to enable Cookies and/or JavaScript or enable TLS 1.0, 1.1 and 1.2. If your system configuration and settings are not compatible and you choose not to upgrade or change them, you may be unable to access the CRA login services.

Recommended browsers

The following browsers meet these requirements and can be used to access CRA login services:


  • Windows Vista
    • Firefox 40
    • Chrome 44 and 45
  • Windows 7
    • Internet Explorer 9 and 10
    • Firefox 40
    • Chrome 44, 45, and latest
  • Windows 8
    • Internet Explorer 10
    • Firefox 36, 40, and 45
    • Chrome 44


  • Snow Leopard
    • Firefox 28, Chrome 44
  • Mountain Lion
    • Firefox 28, Chrome 42
  • Maverick
    • Safari 9.1.2, Firefox 28, Chrome 34


  • Ubuntu 10.04
    • Firefox 28

You may be able to access our CRA login services using other web browsers and recently released versions of supported browsers however, they may not have been fully tested with the CRA login services. If you encounter difficulties while using these browsers, it is recommended that you try again using one of the supported browsers listed above or an earlier version of a supported browser.

Please note, depending on your browser, you may experience difficulties printing some pages from the CRA's secure online services. If this occurs, please try "File – Print" found in the menu options in your browser.


The CRA is not responsible for any difficulties or problems in downloading and installing software. Technical support is provided by the software suppliers.

Cookies and JavaScript

You should also check that your cookies and JavaScript are enabled in your browser settings. All browsers are configured a little differently, so you should check the Internet options of your browser for ways to enable the cookie and JavaScript functionality.

These services use persistent cookies. These persistent cookies will not store any identifying data.

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