As a business owner in Canada, obtaining a Business Number (BN) from the Canada Revenue Agency (CRA) is a crucial step in ensuring your enterprise is compliant with regulations and operates smoothly. A Business Number serves as a unique identifier for your business and is required for various applications, such as registering for GST/HST, payroll deductions, and corporate tax accounts. This guide will walk you through the steps of obtaining a Business Number from the CRA, especially if you’re operating in Ontario.
What is a Business Number (BN) and Why Do You Need One?
A Business Number is a 9-digit number assigned to your business by the CRA. It simplifies your dealings with the federal government by providing a single identifier for your business accounts. Here’s why you need a Business Number:
- To register for the Goods and Services Tax (GST) or the Harmonized Sales Tax (HST).
- If you have employees, you’ll need it to set up your payroll deductions.
- For corporate tax submissions and other tax-related needs.
- To facilitate interactions with provincial and municipal authorities.
Steps to Obtain a Business Number
Getting a Business Number from the CRA can be done in several ways. Choose the method that works best for you:
1. Online Application
The easiest and quickest method to obtain your BN is through the CRA’s online portal. Follow these steps:
- Visit the CRA’s Business Number page.
- Click on the link for the online application.
- Fill out the necessary details about your business, including your business structure (sole proprietorship, partnership, corporation, etc.).
- Submit the form, and your Business Number will be assigned immediately.
2. Phone Application
If you prefer speaking with a representative or have questions along the way, you can apply via phone:
- Call the CRA Business Enquiries line at 1-800-959-5525.
- Ensure you have all necessary information ready, including your Social Insurance Number (SIN) and details about your business.
After completing the phone application, you will receive your Business Number by mail.
3. Mail Application
For those who favor traditional means, you can also apply for a Business Number by completing a paper form:
- Download and print the Form RC1, Request for a Business Number.
- Fill it out carefully with all required information.
- Mail the completed form to the appropriate CRA address, which can be found on the form itself.
Applying by mail may take longer than other methods, so plan accordingly.
What Information Do You Need to Apply?
Regardless of how you choose to apply, you will need to provide certain information:
- Your legal business name, as registered.
- Your primary business location.
- Details about the business structure (e.g., sole proprietorship, partnership, corporation).
- An accurate layout of your business activities.
- Your Social Insurance Number (SIN) or business number if this is not your first time registering a business.
Additional Considerations
After receiving your Business Number, keep these points in mind:
- Your BN is a permanent number that stays with your business, even if you change your business name or registered address.
- Make sure to keep your information updated with the CRA to avoid discrepancies.
- A Business Number is not the same as a Business License, which may also be required based on your location and type of business.
Helpful Resources
For more detailed information about business regulations, resources, and support, refer to the following links:
📚 Resources & References
In conclusion, obtaining a Business Number from the CRA is an essential step for every business owner in Canada. Whether you choose to apply online, by phone, or through the mail, the process is designed to be straightforward. With your Business Number in hand, you can focus on building and growing your business in Ontario and beyond!


