Step-by-Step Online Applications

Have a question about applying for a new GST/HST or Business Number? Please fill out the form below and one of our Agents will contact you within 24 business hours. Do Not use this form for information, questions, or changes to an existing GST/HST account.

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Customer Support

Business Hours: Mon-Fri 9am–4pm EST

Mailing Address
1730 St. Laurent Blvd, Suite 800
Ottawa, ON K1G 5L1

For questions on using our services to apply for a NEW GST/HST, or for a pending or recent application through our private services - Phone: (800) 687-1383

For information on an EXISTING GST/HST account, a return, or change of address etc. - Phone the CRA directly at: (800) 959-5525