Business number registration
Key business registrations with the federal government.
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.
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