How to Get a GST Number in Canada

In Canada, the Goods and Services Tax (GST) number is a key identifier within the nation’s tax framework, symbolizing a crucial link between businesses, individuals, and the regulatory landscape. Encompassing the federal Goods and Services Tax and the Harmonized Sales Tax (HST) levied in harmonized provinces, the GST number is a unique identification code issued by the Canada Revenue Agency (CRA).

This number serves as a touchstone for businesses, enabling them to effectively navigate tax compliance, facilitate efficient tax administration, and ensure accurate remittance of taxes collected from the sale of goods and services.

As a cornerstone of Canada’s revenue collection system, the GST number embodies the nation’s commitment to transparent financial processes and responsible business practices, playing a pivotal role in sustaining the integrity of its economic ecosystem. This article will guide you through getting a GST Number, the requirements needed, the procedure to lock it, and more.

Canada HST/GST Number

In Canada, the GST/HST number refers to a unique identification number assigned to businesses to collect and remit the Goods and Services Tax (GST) and the Harmonized Sales Tax (HST) to the government. The GST is a federal tax, while the HST is a combined tax imposed by some provinces that have chosen to harmonize their provincial sales tax with the GST.

This identification number is issued by the Canada Revenue Agency (CRA) and is required for businesses that meet specific criteria based on their annual revenue and commercial activities. The GST/HST number is used for tracking tax obligations, reporting, and facilitating communication between businesses and the government regarding taxation matters. It typically consists of letters and numbers uniquely identifying each registered company for tax purposes.

Canadian GST Number
Canadian GST Number

How to Apply for GST Number in Canada

Applying for a Goods and Services Tax (GST) number in Canada is a fundamental process for businesses looking to navigate the country’s tax framework. This essential identification number is crucial for collecting and remitting taxes accurately.

To initiate the application, businesses can access the user-friendly online platform the Canada Revenue Agency (CRA) provides. By furnishing the requisite information about the business, its activities, and estimated sales, the application takes you step by step through the process.

Applying for a GST/HST number in Canada involves a few straightforward actions:

Determine Eligibility: Ensure that your business meets the criteria requiring registration for a GST/HST number. Generally, registration is mandatory if your worldwide sales are over $30,000 in a calendar quarter or four consecutive quarters. However, you can also register voluntarily even if your sales don’t reach this threshold.

Gather Information: Collect the necessary information for your application, including your business name, business number (if applicable), contact details, estimated annual sales, and a description of your business activities.

Access the Application: You can apply for a GST/HST number online through the Canada Revenue Agency (CRA) website. The online application is user-friendly and guides you through the process.

Business Number: If you still need to get a business number, you’ll need to apply for one alongside your GST/HST number. The business number is a unique identifier for your business used across various government programs and services.

Complete the Application: Provide the required information accurately on the application form. Make sure to double-check all details to avoid errors.

Submit the Application: After completing the application, submit it through the CRA website. You’ll receive a confirmation number once the application is successfully submitted.

Wait for Processing: The CRA will review your application and may contact you for additional information if needed.

Receive your GST/HST Number: Once approved, you’ll receive your GST/HST number and information about your reporting period and filing frequency. This number is used for tax purposes and must be included on your invoices and other relevant documents.

Start Collecting and Remitting Tax: With your GST/HST number, you can collect the appropriate taxes on your sales and remit them to the government according to the schedule provided.

Requirements to Apply for GST Number in Canada

To apply for a Goods and Services Tax (GST) number in Canada, there are several essential requirements and pieces of information that you’ll need to provide:

Business Information: Give details about your business, including its legal name, business address, contact information, and any trade or operating names.

Business Number (BN): If your business already has a Business Number (BN), include it in the application. If you still need to, you’ll be assigned one as part of the application process.

Description of Activities: Describe the primary activities of your business, such as the products you sell or the services you provide. This helps the Canada Revenue Agency (CRA) understand the nature of your business operations.

Estimated Sales: Provide an annual sales estimate and specify whether this estimate is in Canadian dollars. This information helps determine whether your business meets the threshold for mandatory GST registration.

Bank Account Information: You’ll need to provide the bank account details for the account where you’ll be making payments or receiving refunds related to GST/HST.

Contact Person: Include the name and contact information of the person responsible for handling tax matters for your business.

Reporting Period: Indicate how often you plan to file your GST/HST returns. Depending on your business’s circumstances, you’ll need to choose between monthly, quarterly, or annually.

Additional Business Numbers: If you have other tax accounts or identification numbers related to federal or provincial programs, provide those details.

Personal Information: If you’re applying as an individual (sole proprietorship), you’ll need to provide your social insurance number (SIN) or individual tax number (ITN). The legal names, addresses, and SINs/ITNs of the directors, partners, or officers may be required for corporations or partnerships.

Authorization: If someone is applying on behalf of the business, they’ll need to provide their full name, title, and relationship to the business, along with authorization to act on behalf of the business.

Do you need a GST/HST Number in Canada?

Canada’s GST/HST number requirement depends on your business activities and annual sales. Suppose your worldwide taxable supplies (most sales of goods and services) exceed $30,000 in a calendar quarter or over four consecutive calendar quarters. In that case, you must register for a GST/HST number and collect and remit the applicable taxes.

However, you can register voluntarily even if your sales do not reach this threshold. This can allow you to claim input tax credits (ITCs) on the GST/HST paid on your business expenses. Certain exceptions and variations exist, especially in provinces with a Harmonized Sales Tax (HST) system.

It’s advisable to assess your situation or consult with the Canada Revenue Agency (CRA) to determine whether you need a GST/HST number for your business operations.

How to Lookup GST Number in Canada 

Conducting a GST number lookup is fundamental in various business interactions, especially in the context of taxes and transactions. A Goods and Services Tax (GST) number, also known as a GSTIN, is a unique identification assigned to businesses by the government. This identifier plays a pivotal role in streamlining tax compliance and ensuring transparency in financial dealings.

Whether you’re a vendor, a customer, or a regulatory authority, understanding how to perform a GST number lookup effectively can empower you with the necessary information to validate business entities and facilitate accurate financial transactions.

Looking up a GST number in Canada involves a straightforward process. Here’s a step-by-step guide to help you with the GST number lookup:

Gather Information: Before you start the lookup, ensure you have the necessary details, such as the legal name, business name, or Business Number (BN) of the entity you’re searching for. Having accurate information will help refine your search.

Visit the CRA Website: The Canada Revenue Agency (CRA) provides an official platform for GST number lookup. Visit the CRA website ( and navigate to the “Businesses” section. Look for options related to GST, such as “GST/HST Registry” or “Search for a Business.”

Access the GST/HST Registry: Choose the option that leads you to the GST/HST Registry or a similar business lookup tool. This tool allows you to search for businesses by their name or Business Number.

Enter Business Details: Enter the business’s legal name, trade name, or Business Number into the search fields. If you’re using the legal or trade name, it’s a good idea to include as much accurate information as possible to narrow down the results.

Initiate the Search: Start the search using the entered information. The tool will process your request and provide you with a list of potential matches.

Review the Results: Browse through the search results to find the specific business you’re looking for. The results might include multiple businesses with similar names, so be sure to identify the correct one.

Verify GST Number: Once you locate the business, you’ll find the associated GST number listed in the search results. Verify that the GST number matches the information you’re seeking.

Additional Information: In addition to the GST number, the search results might also provide details about the business’s registered address, registration date, and other relevant information.

Cross-Reference: To ensure accuracy, cross-reference the obtained GST number with the information on official documents, such as invoices, receipts, or contracts, if applicable.

Note and Record: Make a note of the GST number for your records, especially if you’ll be engaging in business transactions with the entity.

Contact the Business: If you have any doubts about the information you found, consider reaching out to the business directly to verify their GST number.

GST Number Lockup in Canada 

Locking a GST number in Canada is a strategic approach often employed by businesses facing specific circumstances that necessitate temporarily suspending their Goods and Services Tax (GST) obligations. Businesses lock their GST numbers to ensure compliance while avoiding unnecessary administrative complexities, whether due to seasonal closures, renovations, or other reasons.

By freezing their GST numbers, businesses can effectively navigate periods of inactivity without the need to reapply for a new number upon resuming operations, streamlining the transition and maintaining a seamless tax record. This practice underscores the adaptability of Canada’s tax system, offering businesses the flexibility to harmonize their tax responsibilities with their operational realities.

If you are in a situation where you need to freeze or lock your GST/HST number due to specific circumstances, such as a temporary closure of your business or other reasons, you might want to follow these general guidelines:

Contact Canada Revenue Agency (CRA): If you need to temporarily suspend your business activities or require your GST/HST account to be inactive for a certain period, you should contact the CRA. You can do this by calling their Business inquiries line or using their online services. Explain your situation and the reason for the request.

Provide Necessary Information: When contacting the CRA, you’ll likely need to provide details about your business, your GST/HST number, and the specific timeframe for the account to be inactive. This could be due to renovations, seasonal closures, or other reasons.

Follow CRA Instructions: The CRA will guide how to proceed. They may provide information on temporarily suspending your GST/HST account without cancelling it. This way, you won’t have to reapply for a new GST/HST number when ready to resume business activities.

Comply with Reporting: Even if your GST/HST account is temporarily locked, you might still need to comply with reporting requirements. This could include filing nil returns or providing information about the status of your business activities during the inactive period.

Resume Normal Activities: Once you’re ready to resume business operations, you must contact the CRA again to reactivate your GST/HST account. They will guide you through making your account active once more.

Canada’s GST Phone Number

The Canada GST phone number is a vital link between businesses, individuals, and the Canada Revenue Agency (CRA) for inquiries and assistance related to the Goods and Services Tax (GST). This dedicated phone line provides a direct means to seek guidance on GST registration, reporting, compliance, and other tax-related matters.

With trained professionals on the other end, the Canada GST phone number offers a personalized avenue for addressing queries, clarifying doubts, and obtaining accurate information tailored to each caller’s circumstances.

As a dynamic resource within Canada’s taxation framework, this phone number exemplifies the government’s commitment to fostering communication and aiding taxpayers in navigating the complexities of GST regulations.

To ensure you get the correct information and connect with the GST department for your specific query, or If you are having trouble using the GST/HST Registry, call the Canada Revenue Agency’s Business enquiries line at 18009595525.

For more details, please visit the Government of Canada Revenue Agency Official Website at

How long does it take to get a GST Number after applying?

Processing times can vary, but it typically takes a few business days to receive your GST number once your application is approved.

Can I register for a GST Number if my sales are below $30,000?

You can register voluntarily even if your sales are below the mandatory threshold. Voluntary registration can have benefits like claiming input tax credits.

What happens if I don’t get a GST Number when required?

Failing to get a GST number when required can result in penalties and legal consequences. It’s essential to register on time if your sales meet the threshold.

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