If you operate a business in Canada—or sell certain goods or services into Canada—you may need to register for the Goods and Services Tax/Harmonized Sales Tax (GST/HST).
The registration itself is usually not document-heavy for a standard Canadian business. In many cases, the Canada Revenue Agency (CRA) primarily needs verified personal information, business details, ownership information, sales estimates, and your requested registration date.
However, the exact information and supporting documents depend on whether you are:
- A sole proprietor
- A partnership
- A Canadian corporation
- A non-resident corporation
- A U.S. company selling into Canada
- An e-commerce or digital-services business
- A taxi or commercial rideshare operator
- Registering voluntarily
- Requesting a backdated GST/HST registration
As of July 14, 2026, the CRA requires access to Business Registration Online (BRO) through a CRA account for online registration. This is an important change for businesses registering in late 2026 or 2027.
This guide breaks down exactly what to prepare before you start.
Quick Checklist: Documents and Information Needed for GST Registration in Canada
For a typical GST/HST registration, prepare the following:
| Information or Document | Usually Needed? |
|---|---|
| Legal business name | Yes |
| Operating or trade name | If different |
| Business Number (BN) | If you already have one |
| Social Insurance Number (SIN) | Generally for Canadian individual owners |
| Date of birth | For the person registering online |
| Home postal code | For online identity verification |
| Business address | Yes |
| Mailing address | If different |
| Business structure | Yes |
| Owner/partner/director details | Usually |
| Description of business activity | Yes |
| Main products or services | Yes |
| Estimated annual taxable sales | Usually |
| Canadian taxable sales estimate | May be required |
| Effective date of GST/HST registration | Yes |
| Fiscal year-end | Usually |
| Desired reporting period | May be requested |
| Articles or certificate of incorporation | Often for non-resident incorporated businesses |
| Certificate number and incorporation jurisdiction | If incorporated |
| Name-change documents | If legal business name changed |
| Canadian banking information | May be requested for non-residents |
| Canadian business/storage addresses | If applicable |
| Sales invoices or sales records | Mainly for backdated registration |
| Contracts | May be needed for certain backdating requests |
| Security deposit | Certain non-resident businesses |
The CRA specifically asks for personal, ownership, business activity, address, sales, and registration-date information when opening a GST/HST program account.
First: GST Registration in Canada Usually Means GST/HST Registration
Businesses often search for “GST registration Canada,” but the federal account is officially a GST/HST program account.
You do not register separately for GST and HST with the CRA.
When your business is registered for GST, it is also registered for HST. The tax rate you charge depends primarily on the place-of-supply rules and where the taxable supply is considered to be made.
Your GST/HST account is linked to your Business Number, or BN.
For example:
| Number | Meaning |
|---|---|
| 123456789 | 9-digit Business Number |
| RT | GST/HST program identifier |
| 0001 | Specific GST/HST account |
| 123456789RT0001 | Complete GST/HST program account number |
The CRA uses RT as the program identifier for GST/HST accounts.
Do You Need a Business Number Before GST Registration?
Not necessarily.
If your business already has a 9-digit CRA Business Number, you use that number when opening your GST/HST account.
If you do not have a BN, the CRA can generally issue one as part of the registration process.
You may already have a BN if your business:
- Incorporated federally or through a participating province
- Has employees and a payroll account
- Files corporate income tax with the CRA
- Has certain import/export accounts
- Previously opened another CRA program account
Do not confuse a CRA Business Number with provincial identifiers such as an Ontario Business Identification Number or Quebec Enterprise Number. The CRA treats these as different identifiers.
Personal Information Required for Online GST/HST Registration
For online registration, the person completing the application should be prepared to provide personal information used by the CRA for identity verification.
Current CRA requirements include:
- Last name
- Social Insurance Number
- Date of birth
- Postal code of your home address
This information belongs to the person completing the registration—not simply the business.
For corporations, partnerships, trusts, and other structures, additional owner, director, partner, or trustee information may be required.
Business Information Required for GST Registration
The CRA needs enough information to identify the business and understand what it does.
Prepare:
- Legal business name
- Operating name, if different
- Existing Business Number, if applicable
- Business structure
- Physical business address
- Mailing address
- Contact information
- Description of your primary business activity
- Main products or services
- Owner information
- Expected or actual sales
- Registration effective date
Business structure
You will need to identify whether the business operates as a:
- Sole proprietorship
- Partnership
- Corporation
- Trust
- Other legal organization
The documents you may eventually need depend heavily on this structure.
Documents Required for GST Registration as a Sole Proprietor
A standard Canadian sole proprietor often needs fewer formal business documents than a corporation.
You should have ready:
- Social Insurance Number
- Date of birth
- Home address and postal code
- Legal name
- Business or operating name, if used
- Business address
- Mailing address
- Business activity description
- Estimated taxable sales
- GST/HST registration effective date
- Existing BN, if one has already been issued
You generally do not need articles of incorporation because a sole proprietorship is not incorporated.
Example
Suppose Sarah runs a marketing consulting business in Ontario.
She may need to provide:
Owner: Sarah Miller
Business type: Sole proprietor
Operating name: Miller Growth Consulting
Business activity: Digital marketing consulting
Estimated taxable sales: $48,000
Business location: Toronto, Ontario
GST/HST effective date: Applicable registration date
If she does not already have a Business Number, it can generally be created during the GST/HST registration process.
Documents Required for GST Registration for a Corporation
A corporation should prepare more detailed legal information.
Commonly required information includes:
- Legal corporate name
- Business Number, if already issued
- Incorporation date
- Jurisdiction of incorporation
- Incorporation or certificate number
- Registered/business address
- Mailing address
- Director or officer information
- Business activity
- Products and services
- Annual worldwide taxable sales
- Canadian taxable sales
- Fiscal year-end
- Requested GST/HST effective date
Incorporation documents
A resident Canadian corporation may already have much of its corporate information associated with its BN.
However, businesses should keep documents such as the following available:
- Articles of incorporation
- Certificate of incorporation
- Articles of amendment
- Name-change certificate
- Corporate registration documents
For certain non-resident corporations, incorporation documents can be specifically required as supporting documentation.
Documents Required for GST Registration for a Partnership
A partnership may need to provide:
- Partnership legal name
- Operating name
- Partnership address
- Business Number, if available
- Business activity
- Partner names
- SINs of applicable Canadian individual partners
- Contact details
- Sales information
- Registration date
- Partnership formation details
Depending on the circumstances, having a copy of your partnership agreement available can also be useful, especially if ownership or signing authority needs clarification.
Registered partnerships or non-resident partnerships may need additional formation or name-change documents.
Documents Required for a U.S. Business Registering for GST in Canada
U.S. businesses selling products or services in Canada deserve special attention because Canadian GST/HST registration rules for non-residents are not identical to the rules for Canadian companies.
A U.S. corporation may need to prepare:
- Legal company name
- U.S. business address
- Mailing address
- Federal Employer Identification Number or foreign tax identifier, when requested
- Incorporation date
- State of incorporation
- Certificate or incorporation number
- Articles or certificate of incorporation
- Name-change documentation, if applicable
- Names and contact information for directors or officers
- Description of business activities
- Types of products or services sold
- Worldwide taxable sales
- Canadian taxable sales
- Canadian customer information where relevant
- Canadian branch or office information
- Canadian warehouse/storage location
- Canadian banking information, if applicable
- Requested GST/HST registration date
Non-resident applicants can be required to provide incorporation or formation documents and name-change documents as supporting evidence.
A U.S. company does not automatically need GST registration simply because it sells to Canadians
Whether registration is required depends on issues such as:
- Whether the business is considered to be carrying on business in Canada
- The type of products or services supplied
- Whether goods are delivered in Canada
- Whether the business operates through a Canadian location
- Whether special digital-economy rules apply
- Whether the company voluntarily registers
- The nature and amount of Canadian taxable supplies
A business that does not carry on business in Canada may not be required to register under the ordinary GST/HST regime solely because Canadian customers buy from it, although other rules—including Canada’s digital-economy provisions—can change the result.
Normal vs. Simplified GST/HST Registration for Non-Resident Digital Businesses
Non-resident digital businesses can fall under special GST/HST rules.
Canada operates both a:
- Normal GST/HST registration system
- Simplified GST/HST registration system for certain digital-economy businesses
The appropriate system depends on what the business supplies and how the transaction occurs.
For example, certain non-resident suppliers of:
- Digital products
- Streaming services
- Online subscriptions
- Software
- Digital services
- Platform-based accommodation
may fall under Canada’s simplified registration rules.
By contrast, certain businesses supplying qualifying goods may need normal GST/HST registration rather than the simplified system.
This distinction matters because the documents, tax-credit rules, and compliance obligations are different.
Is GST Registration Mandatory in Canada?
For many businesses, the key threshold is $30,000 in worldwide taxable supplies.
A person is generally considered a small supplier if taxable revenues, together with associated-person revenue, do not exceed $30,000 over the applicable measurement periods.
The threshold calculation generally includes:
- Taxable supplies
- Zero-rated supplies
- Worldwide qualifying taxable revenue
- Associated-person taxable revenue
Certain amounts are excluded, including particular sales of capital property, financial services, and goodwill.
Important: the $30,000 threshold is not simply an annual calendar-year test
The CRA looks at whether you exceed $30,000:
- In a single calendar quarter, or
- Across four consecutive calendar quarters
Those two situations have different timing rules.
If You Exceed $30,000 in One Calendar Quarter
If taxable revenue exceeds $30,000 in one calendar quarter, you stop being a small supplier immediately.
Your GST/HST registration effective date is generally no later than the supply that caused you to exceed the threshold.
You must begin collecting GST/HST on that transaction and generally register within 29 days.
Example
Your taxable revenue in one quarter is:
| Sales | Revenue |
|---|---|
| Previous sales | $29,000 |
| New transaction | $4,000 |
| New total | $33,000 |
The $4,000 sale causes you to cross the $30,000 threshold.
You generally cannot wait until the next year to register.
If You Exceed $30,000 Across Several Quarters
Suppose your taxable revenue is:
| Quarter | Revenue |
|---|---|
| Q1 | $8,000 |
| Q2 | $9,000 |
| Q3 | $7,000 |
| Q4 | $9,000 |
| Total | $33,000 |
If you exceed the threshold over consecutive quarters without exceeding $30,000 in a single quarter, you generally remain a small supplier through the end of the month following the quarter in which the threshold is exceeded.
Your registration date then generally begins with your first taxable supply after you stop being a small supplier.
This timing distinction is easy to miss and can affect when you should begin charging GST/HST.
Businesses That May Need GST/HST Registration Regardless of the $30,000 Threshold
The small-supplier exemption does not apply to every type of business.
For example, taxi operators and commercial ride-sharing drivers generally must register for GST/HST from the day they begin providing taxable passenger transportation services, even if they earn well below $30,000.
Certain non-resident businesses selling admissions to events or activities in Canada can also face mandatory registration regardless of the normal small-supplier threshold.
Industry-specific rules should therefore be checked before assuming the $30,000 threshold protects you from registration.
Can You Register for GST Voluntarily Below $30,000?
Yes.
A business that qualifies as a small supplier may voluntarily register if it makes taxable supplies in Canada.
Voluntary registration can be useful when a business has significant GST/HST expenses because registered businesses may be able to claim input tax credits (ITCs) for eligible GST/HST paid on business purchases.
However, voluntary registration also creates ongoing obligations.
Once registered, you generally must:
- Charge GST/HST when required
- Issue proper invoices
- File GST/HST returns
- Remit net tax
- Maintain records
- Follow CRA reporting rules
Businesses that voluntarily register may generally need to remain registered for at least one year before cancellation is available.
What Sales Information Do You Need for GST Registration?
The CRA may ask for:
- Annual worldwide taxable sales
- Canadian taxable sales
- Estimated annual revenue
- Effective registration date
- Fiscal year-end
- Reporting frequency
If your business is new and does not have a complete sales history, the CRA permits a reasonable estimate of expected income.
Keep your calculations
Before registering, prepare a simple worksheet showing:
| Period | Taxable Revenue |
|---|---|
| Q1 | $8,500 |
| Q2 | $10,400 |
| Q3 | $9,700 |
| Q4 | $12,200 |
| Four-quarter total | $40,800 |
This helps establish when registration became mandatory.
It can become particularly important if the CRA later asks why a specific effective date was chosen.
What Business Activity Description Should You Provide?
The CRA wants to understand what actually generates your revenue.
Avoid vague descriptions such as:
- Consulting
- Online business
- Sales
- Services
- E-commerce
Use a clear description instead.
For example:
Weak description:
Online sales
Better description:
Online retail sale of home fitness equipment to Canadian consumers
Or:
Weak description:
Consulting
Better description:
Cybersecurity consulting and network risk assessment services for small businesses
You may also need to identify your major products or services and estimate the percentage of revenue attributable to them.
Do You Need a Canadian Bank Account for GST Registration?
A Canadian bank account is not universally required merely to obtain a standard GST/HST account.
However, non-resident registration may ask for Canadian banking information where applicable, particularly depending on the registration type and how the business expects to manage CRA transactions.
A Canadian business bank account can nevertheless make it easier to:
- Receive CRA refunds
- Set up direct deposit
- Pay remittances
- Separate business and personal transactions
- Maintain cleaner accounting records
Do You Need Proof of Business Address?
Canadian resident businesses generally provide:
- Physical address
- Mailing address
Non-resident businesses may also need to disclose Canadian addresses connected with:
- A branch
- An office
- Books and records
- Product storage
- Warehouse operations
The CRA may request supporting documentation if the business’s Canadian presence affects its registration or tax treatment.
Useful records to keep available include:
- Commercial lease
- Utility statement
- Warehouse contract
- Fulfillment agreement
- Registered-office record
These are not necessarily uploaded for every ordinary registration, but they can support the information you provide if verification is required.
Documents Needed to Backdate GST Registration in Canada
Backdated GST/HST registration is more document-intensive.
If your requested effective date is more than 30 calendar days before your registration request, the CRA can require documentation supporting the earlier date.
For a business that should have registered because its taxable sales exceeded the small-supplier threshold, the CRA may request:
- Business Number
- Requested effective date
- Signed request
- Sales journals
- Spreadsheets
- Revenue breakdowns
- Accounting records
- Invoices
- Contracts
- Other evidence showing when taxable sales crossed the threshold
Voluntary backdated registration
A voluntarily registering business that wants an earlier effective date may need evidence showing it acted like a GST/HST registrant.
The CRA identifies examples such as:
- Earliest three to five invoices showing GST/HST
- Sales journal records
- Sales or service contracts
Do not choose an arbitrary registration date. Your requested date should be supported by your actual business history.
Security Deposit Requirements for Non-Resident GST Registration
This is particularly important for U.S. and other foreign businesses.
A non-resident may be required to provide a security deposit if it:
- Does not have a permanent establishment in Canada, or
- Makes Canadian supplies only through another person’s fixed place of business.
There are exceptions.
For example, security may not be required where estimated annual taxable Canadian property and services do not exceed $100,000 and estimated annual net tax remains within specified CRA limits.
Where security is required, the initial amount is generally based on 50% of estimated net tax for the first 12 months, subject to CRA minimum and maximum limits.
For a U.S. business entering Canada, this should be reviewed before assuming GST registration is simply an online form.
How to Register for GST/HST in Canada in 2026–2027
Step 1: Determine whether registration is required
Calculate taxable worldwide supplies and review:
- The $30,000 threshold
- Single-quarter revenue
- Four-consecutive-quarter revenue
- Special mandatory registration rules
Step 2: Confirm your business structure
Determine whether you are registering as a:
- Sole proprietor
- Partnership
- Corporation
- Trust
- Non-resident
- Digital-economy business
Step 3: Find your Business Number
Use your existing BN if you have one.
If not, you may receive one through the registration process.
Step 4: Gather personal and business information
Have your:
- SIN
- Date of birth
- Home postal code
- Business name
- Addresses
- Ownership details
- Business description
- Revenue information
- Incorporation information
ready before starting.
Step 5: Determine your effective registration date
This may be:
- The date registration became mandatory
- The date you voluntarily request registration
- Up to 30 days before a voluntary request in certain situations
- An approved earlier date supported by backdating documentation
Step 6: Access Business Registration Online
As of July 14, 2026, Business Registration Online is accessible only after signing into a CRA account.
Step 7: Save your registration details
The CRA specifically advises online registrants to save or print their BN and GST/HST account number during registration.
A new account might look like:
123456789 RT 0001
Important 2026 CRA Online Registration Change
Businesses using older guides may see instructions that no longer reflect the current process.
Starting July 14, 2026, Business Registration Online requires the user to first sign into a CRA account.
The CRA implemented this change to strengthen authentication and security.
For businesses preparing to register in 2027, plan for CRA account access before beginning the BN or GST/HST registration process.
This is especially important for:
- New entrepreneurs
- First-time self-employed individuals
- Businesses using representatives
- New Canadian residents
- Businesses whose owners have not previously interacted with the CRA
GST/HST Rates in Canada for 2026
Registration is federal, but the amount of GST/HST charged depends on where the supply is considered to be made.
Current GST/HST rates are:
| Province/Territory | GST/HST Rate |
|---|---|
| Alberta | 5% GST |
| British Columbia | 5% GST |
| Manitoba | 5% GST |
| New Brunswick | 15% HST |
| Newfoundland and Labrador | 15% HST |
| Northwest Territories | 5% GST |
| Nova Scotia | 14% HST |
| Nunavut | 5% GST |
| Ontario | 13% HST |
| Prince Edward Island | 15% HST |
| Quebec | 5% GST |
| Saskatchewan | 5% GST |
| Yukon | 5% GST |
Nova Scotia’s HST decreased from 15% to 14% effective April 1, 2025.
Provincial sales taxes can apply separately in provinces such as British Columbia, Manitoba, Saskatchewan, and Quebec, so GST/HST registration does not necessarily satisfy every provincial sales-tax obligation.
GST Registration in Quebec Is Different
If your business is physically located in Quebec, GST/HST administration is generally handled through Revenu Québec rather than directly through the CRA.
Businesses carrying on commercial activities in Quebec may need both:
- GST registration
- Quebec Sales Tax (QST) registration
The general small-supplier threshold is also $30,000 for many businesses.
Quebec businesses can register online through Revenu Québec or use Form LM-1-V, depending on their circumstances.
If your company is based in Quebec, do not follow a generic CRA-only checklist without considering the separate Quebec registration process.
GST Registration Documents by Business Type
| Business Type | Key Information/Documents |
|---|---|
| Sole proprietor | SIN, DOB, address, business name, activity, revenue |
| Partnership | Partner details, partnership info, addresses, activity, revenue |
| Canadian corporation | BN, incorporation details, directors, business details |
| U.S. corporation | Formation documents, officers, foreign address, Canadian activity |
| Non-resident seller | Foreign business details, Canadian sales/activity, possible security |
| Digital business | Business details plus simplified/normal registration information |
| Rideshare/taxi driver | SIN, business details, start date of taxable transportation |
| Backdated registration | Invoices, sales journals, contracts, financial records |
Common GST Registration Mistakes
Waiting Until Year-End to Check the $30,000 Threshold
The threshold is not based only on your annual tax year.
A single calendar quarter can trigger registration immediately.
Counting Only Canadian Revenue
The small-supplier calculation generally looks at worldwide taxable supplies, including relevant associated-person sales.
Using Gross Revenue Without Separating Exempt Revenue
Not all business revenue belongs in the GST/HST taxable-supply calculation.
Certain exempt supplies, financial services, capital-property sales, and goodwill may be treated differently.
Choosing the Wrong Effective Date
Your registration effective date affects:
- When you must charge GST/HST
- Which invoices need tax
- Your return periods
- Your input tax credits
- Possible backdated tax liability
Do not guess.
Registering Twice
If you already have a Business Number, normally add the GST/HST program account to that BN rather than creating a duplicate business identity.
Confusing a Provincial Number With a CRA Business Number
Provincial registration numbers do not automatically replace your federal CRA BN.
Assuming Every Small Business Is Exempt
Taxi operators, commercial rideshare drivers, and certain other businesses may need registration regardless of revenue.
Ignoring Provincial Sales Taxes
GST/HST registration is not the same as registering for:
- BC PST
- Saskatchewan PST
- Manitoba RST
- Quebec QST
Your sales-tax obligations may involve more than one registration.
Example: Ontario Consulting Business
Suppose a Toronto consulting company has the following taxable revenue:
| Quarter | Taxable Revenue |
|---|---|
| Q1 | $7,000 |
| Q2 | $8,000 |
| Q3 | $9,000 |
| Q4 | $12,000 |
| Total | $36,000 |
The company has exceeded $30,000 over four consecutive quarters but never exceeded $30,000 in a single quarter.
It would generally stop qualifying as a small supplier at the end of the month following the quarter in which it crossed the cumulative threshold and would need to register based on the CRA’s effective-date rules.
Its registration preparation might include:
- Corporation’s BN
- Legal name
- Ontario incorporation details
- Director information
- Business address
- Consulting activity description
- Revenue records
- Fiscal year-end
- Registration date
Once registered, Ontario taxable supplies subject to HST are generally charged at 13%, assuming Ontario is the applicable place of supply.
Example: U.S. E-Commerce Business Selling to Canada
Consider a Delaware corporation selling consumer products online to customers across Canada.
Before registering, it should determine:
- Whether it is carrying on business in Canada
- Whether goods are stored in Canada
- Whether a Canadian fulfillment company is used
- Who imports the goods
- Whether normal GST/HST registration applies
- Whether other digital or platform rules apply
- Whether a non-resident security deposit could be required
Its document file may include:
- Delaware Certificate of Incorporation
- Articles of Incorporation
- EIN/business tax details
- U.S. address
- Officer information
- Website address
- Product description
- Canadian warehouse details
- Canadian sales estimate
- Worldwide sales
- Customer transaction records
This type of business should not rely solely on the standard Canadian sole-proprietor checklist.
What Happens After GST/HST Registration?
GST registration is the beginning of an ongoing tax process—not the end.
Once registered, you generally become responsible for:
- Charging applicable GST/HST
- Showing the tax properly on invoices
- Maintaining supporting records
- Filing GST/HST returns
- Remitting amounts owed
- Claiming eligible input tax credits
- Updating the CRA if business information changes
Your reporting period may be:
- Annual
- Quarterly
- Monthly
depending on your circumstances and elections.
Can You Claim GST/HST Paid Before Registration?
In some situations, newly registered businesses may be able to claim input tax credits related to certain property or services held or used when they became registrants, subject to GST/HST rules.
This is one reason accurate purchase records matter even before registration.
Keep:
- Supplier invoices
- Receipts
- Equipment purchase records
- Inventory records
- Business expense documentation
The fact that an expense occurred before the registration date does not automatically mean it is irrelevant, but eligibility depends on the specific GST/HST rules.
GST Registration Canada Checklist
Before beginning your application, confirm you have the following.
Personal details
- Full legal name
- SIN, if applicable
- Date of birth
- Home postal code
- Phone number
Business details
- Legal business name
- Operating name
- Business Number
- Physical address
- Mailing address
- Business structure
- Business activity
- Major goods/services
Ownership details
- Owner names
- Partner information
- Director/officer information
- SINs where applicable
Corporation details
- Incorporation date
- Jurisdiction
- Certificate number
- Incorporation documents if requested
Financial details
- Worldwide taxable sales
- Canadian taxable sales
- Estimated annual revenue
- Fiscal year-end
- Requested reporting period
Registration details
- Effective date
- Reason for registration
- Mandatory or voluntary status
Non-resident details
- Foreign incorporation documents
- Canadian addresses
- Canadian bank information where applicable
- Canadian sales details
- Possible security requirements
Backdating evidence
- Invoices
- Sales journal
- Contracts
- Revenue spreadsheets
- Accounting records
Frequently Asked Questions About GST Registration in Canada
What documents are required for GST registration in Canada?
A typical business needs personal identification information, its legal business name, Business Number if available, business structure, owner details, addresses, business activity, sales information, fiscal year-end, and requested registration date. Corporations and non-residents may need additional incorporation or formation documents.
Is a SIN required for GST registration?
For online registration, the CRA asks the person submitting the request for their last name, SIN, date of birth, and home postal code. Owner SIN information can also be required for applicable Canadian individual owners.
Do I need a Business Number before registering for GST?
No. If you do not already have a BN, the CRA can generally issue one as part of the GST/HST account registration process.
At what revenue do I need to register for GST in Canada?
For most businesses, the key small-supplier threshold is $30,000 in worldwide taxable supplies, measured under the CRA’s single-quarter and consecutive-quarter rules.
Do I have to register immediately after exceeding $30,000?
It depends on how you cross the threshold.
If you exceed $30,000 in a single calendar quarter, you generally stop being a small supplier immediately and must begin charging GST/HST on the transaction that pushes you over the threshold. Registration is generally required within 29 days.
If you cross $30,000 over multiple consecutive quarters, different timing rules apply.
Can I register for GST if my sales are below $30,000?
Yes. Qualifying small suppliers can generally register voluntarily.
Voluntary registration can allow eligible input tax credits, but it also creates GST/HST charging, filing, recordkeeping, and remittance obligations.
Do I need incorporation documents for GST registration?
A Canadian corporation may not necessarily need to upload incorporation documents during a routine online registration if the CRA already has its corporate information. Non-resident incorporated businesses may be required to provide articles or certificates of incorporation or formation.
Does a U.S. company need GST registration in Canada?
Not automatically. Registration depends on the company’s activities in Canada, types of supplies, Canadian presence, sales arrangements, and whether special digital-economy rules apply.
Can a U.S. company get a Canadian GST number?
Yes. A qualifying or required non-resident business can obtain a Canadian BN and GST/HST program account. Additional registration documents and security requirements can apply.
Is a Canadian bank account required to register for GST?
Not universally. Canadian banking information may be requested from non-residents where applicable, but a Canadian bank account is not a blanket requirement for every GST/HST registration.
What is an RT number in Canada?
“RT” is the CRA’s program identifier for GST/HST accounts.
A GST/HST account might appear as:
123456789RT0001
where the first nine digits are the Business Number.
Is HST registration separate from GST registration?
No. A business registered for GST is also registered for HST. Which rate applies depends on the place of supply.
Do I need separate GST registrations for every province?
Generally, no. GST/HST is federally administered, although Quebec businesses generally deal with Revenu Québec for GST/HST administration. Separate provincial sales-tax registrations may still be necessary in provinces with PST, RST, or QST systems.
What documents are required to backdate a GST registration?
Depending on the reason, the CRA may request sales journals, spreadsheets, invoices, contracts, financial records, your requested effective date, and evidence showing when you exceeded the registration threshold or began acting as a GST/HST registrant.
How long does GST registration take in Canada?
Online registration can often produce a Business Number and GST/HST account during the registration process when the information can be validated immediately. Applications that require additional verification, non-resident documents, backdating, security, or manual review can take longer.
Can I charge GST before I receive a GST number?
You should determine your legal registration status and effective date carefully. A business that becomes a mandatory registrant may be required to charge GST/HST from its effective registration date even if the administrative registration has not yet been completed.
GST Registration in Canada: Final Takeaway
The documents required for GST registration in Canada depend on who is registering.
For a straightforward Canadian small business, the process is mostly about having the right personal, business, ownership, revenue, and registration-date information ready.
For corporations, U.S. businesses, non-residents, backdated registrations, and digital-economy companies, the documentation can become more detailed.
The most important points to remember for 2026–2027 are:
- Most businesses should watch the $30,000 small-supplier threshold
- Both single-quarter and four-consecutive-quarter revenue matter
- A Business Number can generally be created during registration if you do not already have one
- Your GST/HST program account normally uses the RT identifier
- Non-resident corporations may need incorporation documents and additional supporting information
- Backdated applications usually require actual financial evidence
- Quebec uses a different administration process through Revenu Québec
- As of July 14, 2026, online Business Registration Online access requires signing into a CRA account
Before registering in 2027, confirm that your business structure, taxable-sales calculation, effective date, and current CRA registration process still match your circumstances.
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