Use your federal business number to interact with the CRA and other government programs. Find out how to get one, register for CRA program accounts, and manage changes to your business.
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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