or call us at: 416-239-1361 or 1-800-565-8698
Click to apply for a business number or a CRA program account (GST, etc), or call CRA's toll-free business enquiries line at 1 800 959-5525
Click for information on Ontario Tax & Benefit Programs, PST/RST numbers for business, etc., or for a PST/RST number, call the GTA Regional Tax Office at 416-222-3226 or 1-888-565-6433.