A Business Number (BN) is a unique nine-digit number assigned by the Canada Revenue Agency (CRA) to businesses and individuals who need to register for GST/HST, payroll deductions, or corporate income tax. It is used to identify your business for tax purposes and is required for various business activities, such as opening a business bank account or registering for a GST/HST account.
Getting a BN is relatively simple and can be done online, by mail, or by phone. The application process typically takes a few weeks to complete. Once you have a BN, you will need to keep it up to date by filing your taxes on time and informing the CRA of any changes to your business information.