CRA Business Number (BN)
Every business must have a CRA Business Number. This is the 9 digit standard identifier for your business. This is applicable for a federal or provincial corporation, or a sole proprietorship or a master business license or a trade name or a partnership). However, a separate business number is not required, if you are registering:
- 1. a master business license or trade name under an existing corporation that already has a business number, or,
- 2. a sole proprietorship and you already have business number assigned by CRA.