Business number registration
Key business registrations with the federal government.
Most requested
Services and information
When you need a business number or CRA program accounts
Certain business activities require registration with the CRA.
How to register for a business number
Register for a business number or CRA program accounts by mail, phone, fax, or online.
Changes to your business and tax accounts
For common business changes, make updates online, inform the CRA, and other actions.
Authorize a representative for your business
Designate someone to deal with the CRA related to business number or program accounts.
CRA registration and provincial or other federal programs
Your business number registration can be connected to other federal or provincial programs.
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