Business number registration
Most requested services for business number registration
- Register with the CRA's electronic services
Find out how to register businesses, representatives and payroll accounts quickly and easily with CRA’s electronic services.
Services and information
Certain business activities require registration with the CRA.
Register for a business number or CRA program accounts by mail, phone, fax, or online.
For common business changes, make updates online, inform the CRA, and other actions.
Grant or cancel authorization to a representative, the types of access you can give, and the ways to authorize.
Your business number registration can be connected to other federal or provincial programs.
Learn about changes that the CRA has introduced to support businesses through the COVID-19 pandemic.
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