How to Get a Business Number in Ontario After Incorporation (2026)
A Business Number (BN) is a 9-digit CRA identifier assigned to your corporation after incorporation. In Ontario, you receive it automatically within 2–5 business days after filing your Articles of Incorporation federally. Provincial incorporations require manual registration at canada.ca or by calling CRA at 1-800-959-5525. What is a Business Number in Ontario? A BN is…