Contact us

• For information about filing an information return electronically, contact our e-service Helpdesk for businesses at 1-877-322-7849. If you are outside of Canada, you can contact the e-service Helpdesk for businesses at 709-772-8371.
• For information about completing slips and summaries, see Completing slips and summaries or call 1-800-959-5525.
• For information or assistance creating an XML file call the Electronic Media Processing Unit at 1-800-665-5164, between 7:00 and 17:00 (EST).

To get email updates about electronic filing, see Electronic Filing for Businesses.