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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 accounts so it is important to read Do you need an account before registering.

The CRA is asking that all new registrants provide the social insurance number (SIN) of at least one owner/director and the business activity of the business when registering.

Topics for Business Number (BN) registration

Do you need an account
Find out if you have to register		 How it works
Basic information on how the BN system works
Before you register
Information you need to register for a BN		 How to register
Registering your BN by mail, phone, Internet, or in person
Operating in Quebec
Information you need if you operate a business in Quebec		 After you register
What happens after you register
Softwood Lumber Registration
Registering for Softwood Lumber Export Charge and BN. Registration forms, export permit, and more

CRA Partnerships
Provincial Partnerships and Federal Government Departments
Events and seminars for business

Frequently asked questions

What is the difference between a Business Number (BN) and a Business Identification Number (BIN)?

What do I need to know if I am hiring a baby-sitter?

What is the difference between a partnership and a joint venture?

Forms and publications

Related topics

Date Modified: 2007-06-06

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Important Notices