Starting a business in Alberta involves more than choosing a business structure and registering your company. Alberta Business Number and Tax Registration are important steps for businesses that need to deal with the Canada Revenue Agency (CRA), register for GST, manage payroll, or meet corporate tax obligations.
An Alberta Business Number (BN) provides your business with a unique identifier for dealing with the CRA, while separate tax accounts may be required depending on your business activities. Understanding when you need a BN, which tax accounts apply, and how the registration process works can help you avoid delays and unnecessary compliance issues.
What Is an Alberta Business Number (BN)?
An Alberta Business Number, commonly called a BN, is a unique 9-digit number assigned to a business or legal entity by the CRA. It acts as a standard identifier when your business interacts with the CRA and other government programs.
The BN itself is not the same as a tax account. Instead, CRA program accounts are linked to your BN. For example:
- RT – GST/HST account
- RP – Payroll deductions account
- RC – Corporation income tax account
- RZ – Information returns account
A program account combines your 9-digit BN with a program identifier and reference number. For example, a GST/HST account may appear as 123456789 RT0001.
This means a business generally uses one BN while adding the CRA program accounts it actually needs.
Who Needs a Business Number in Alberta?
Not every business automatically needs a BN.
If you operate an unincorporated business, such as a sole proprietorship, you generally need a BN when you register for a CRA program account such as GST/HST or payroll. Corporations generally need a BN as part of their incorporation or CRA registration process.
You may need a business number in Alberta if you:
- Incorporate your business
- Register for GST/HST
- Hire employees and need a payroll account
- Need a corporate income tax account
- Import or export goods
- Need another CRA program account
For example, a sole proprietor with no employees and taxable revenue below the GST registration threshold may not need a BN immediately. However, once the business needs a CRA program account, the BN becomes part of that registration.
How Do You Register for an Alberta Business Number?
For most businesses, the CRA’s Business Registration Online (BRO) is the main way to register for a BN and CRA program accounts.
Since July 14, 2026, access to BRO requires signing in through a CRA account, a Sign-In Partner, or an eligible provincial partner. Alberta is one of the provinces supported through the provincial sign-in option.
The basic process is:
- Sign in to your CRA account.
- Access Business Registration Online.
- Select the option to register a business.
- Provide your business and ownership information.
- Select the CRA program accounts your business needs.
- Review the information and submit the registration.
- Save your BN and program account details.
The CRA states that online registration is the quickest way to obtain a BN and applicable program accounts, and the registration information should be saved or printed for your records.
Businesses that cannot use the standard online process may have other registration options, including Form RC1 in applicable circumstances. Non-resident businesses have a separate CRA registration process.
What About an Alberta Numbered Company?
An Alberta numbered company is a corporation identified by a government-assigned number rather than a custom corporate name.
A numbered company can still have a CRA Business Number and the appropriate tax accounts. The choice between a named corporation and a numbered company is primarily a corporate registration and branding decision; it does not eliminate the corporation’s tax and reporting responsibilities.
What Tax Accounts Can Be Linked to an Alberta Business Number?
Once you have a BN, you can add the CRA program accounts that apply to your business.
GST/HST Account
Businesses that make taxable supplies in Canada may need a GST/HST account. Alberta does not have a provincial sales tax, so businesses operating in the province generally deal with the federal GST rather than a separate Alberta sales-tax system.
Payroll Account
If you become an employer, you may need a payroll deductions account. This account is used for reporting and remitting amounts such as employee income-tax deductions, Canada Pension Plan contributions, and Employment Insurance premiums.
Corporate Income Tax Account
If you operate through a corporation, corporate income tax obligations apply. Alberta corporations generally have both federal and provincial corporate income tax responsibilities.
The CRA confirms that Alberta corporations are an exception to the general T2 system: a corporation located in Alberta must file a separate provincial corporate income tax return in addition to its federal return.
This is where Alberta corporate tax and the Alberta tax return become important for incorporated businesses.
Other CRA Accounts
Depending on your activities, your business may also need other CRA program accounts, such as information-return accounts. The correct accounts depend on what your business does and which reporting obligations apply.
When Do You Need to Register for GST in Alberta?
For most businesses, GST registration becomes mandatory when taxable revenues exceed the $30,000 small-supplier threshold.
The calculation is based on taxable supplies over four consecutive calendar quarters. However, there is an important distinction if you exceed $30,000 in a single calendar quarter. In that situation, you can become required to register from the transaction that caused you to exceed the threshold.
If your taxable revenue remains at or below the threshold, you may generally remain a small supplier, although voluntary GST registration can be an option for eligible businesses.
Voluntary registration may be useful in some situations, particularly for businesses that want to claim eligible input tax credits on business purchases.
Once registered, you have ongoing responsibilities, including charging and collecting GST, filing GST/HST returns, remitting amounts owing, and maintaining appropriate records.
What Documents Are Required for BN and Tax Registration?
The exact information required depends on your business structure and the accounts you are registering for.
You should generally have information such as:
- Legal business or corporation name
- Business structure
- Business and mailing address
- Description of your main business activity
- Owner, partner, or director information
- Social Insurance Number where applicable
- Estimated revenue
- GST registration details, if applicable
- Fiscal year-end information for corporations
The CRA may request additional information depending on the registration and circumstances. For GST/HST registration, for example, the CRA asks for business details, the type of business, ownership information, addresses, and a description of the major business activity.
Preparing this information before starting the application can make the registration process much smoother.
How Much Does Alberta Business Number and Tax Registration Cost?
A CRA Business Number itself does not have a government registration fee.
However, your overall business setup costs can vary depending on what you are registering.
For example, incorporating a corporation, registering a business name, using a registry agent, or hiring a professional to handle business and tax registration can involve separate costs.
It is therefore important to distinguish between the cost of obtaining a BN and the cost of establishing the underlying business.
If you are setting up an Alberta numbered company, for example, the corporate registration process and associated government fees are separate from the CRA Business Number.
How Long Does Alberta Business Number Registration Take?
Online CRA registration can be completed quickly when you have the required information and are eligible to use Business Registration Online.
The CRA describes BRO as the quickest and easiest way to register for a BN and certain CRA program accounts, and online registration can provide the BN and account details during the registration process.
However, the overall timeline for starting a business can be longer if you are also incorporating, registering a business name, opening tax accounts, or completing additional provincial requirements.
For this reason, it is useful to treat business registration and tax registration as connected but separate steps.
What Are the Common BN and Tax Registration Mistakes?
Several common mistakes can create unnecessary compliance problems.
- Registering for the wrong accounts: Not every business needs every CRA program account. Register only for the accounts that apply to your activities and obligations.
- Missing the GST threshold: Businesses should monitor taxable revenue instead of waiting until the CRA contacts them. If you cross the $30,000 threshold, your GST registration obligations can begin based on when and how the threshold was exceeded.
- Confusing a BN with a tax account: Your BN is the main 9-digit identifier. GST/HST, payroll, and corporate income tax accounts are separate CRA program accounts linked to that BN.
- Assuming incorporation completes every tax registration: Incorporating a business and setting up the necessary CRA accounts are related but should not be treated as exactly the same process. Review which program accounts your corporation requires.
- Ignoring Alberta corporate tax obligations: Corporations operating in Alberta need to consider both federal and provincial corporate tax filing requirements. Alberta’s current general corporate income tax rate is 8%, according to the Alberta government.
Conclusion
Getting an Alberta Business Number and tax registration right is an important part of setting up a compliant business. The BN provides your business with its CRA identifier, while additional program accounts handle specific obligations such as GST/HST, payroll, and corporate income tax. Before registering, determine your business structure, understand which CRA accounts apply, and prepare the required information.
If you operate a corporation, also consider Alberta’s separate corporate tax filing requirements and the applicable Alberta corporate tax rate. For entrepreneurs who want help with business incorporation, Business Number registration, and CRA tax account setup, IncPass can help simplify the registration process and ensure the necessary steps are handled correctly.
FAQ’s
Is a Business Number the same as a corporate tax number?
Not exactly. Your BN is the base identifier; your corporate income tax account (RC0001) is one of several accounts linked to it. You need the BN first, then the corporate tax account is added to it.
Can I operate in Alberta without a Business Number?
Yes, if you’re a sole proprietor earning under $30,000 with no employees. Once you cross that revenue threshold or plan to hire staff, a BN and the relevant tax accounts become necessary.
Does incorporating in Alberta automatically register me for GST?
No. Incorporation issues you a BN, but GST/HST is a separate program account you still need to register for once you meet the threshold or choose to register voluntarily.
