Business Number (BN) registration

The BN is a numbering system that simplifies and streamlines the way businesses deal with the federal government. It is based on the idea of one business, one number.

Not all businesses require a BN and CRA program accounts so it is important to read Do you need a program account before registering.

The CRA is requesting that all new registrations provide the Name and the Social Insurance Number (SIN) of at least one owner/director of the business and the Major Business Activity (MBA) when registering.

Forms and publications

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