Permanent Establishment and Canadian Tax Exposure

What U.S. Businesses Need to Know

Executive Summary

A U.S. business expanding into Canada needs to answer two separate questions. First, is the business carrying on business in Canada under Canadian domestic tax law? Second, if the business is entitled to benefits under the Canada-U.S. Tax Treaty, does it have a permanent establishment in Canada?

The distinction matters. Canadian domestic law may create a T2 corporate filing obligation even where the treaty ultimately protects business profits from Canadian federal income tax. Under Article VII of the treaty, business profits of a U.S. resident are generally taxable only in the United States unless the business carries on business in Canada through a Canadian permanent establishment. If a permanent establishment exists, Canada may tax the business profits attributable to it.

A permanent establishment may arise through a fixed place of business, certain contract-concluding agents, qualifying construction projects or the treaty’s special services rules. Because Article V of the treaty applies symmetrically to residents of both countries, the permanent-establishment tests themselves mirror the rules that apply to a Canadian business entering the United States. Canadian domestic compliance, withholding and sales-tax rules do not mirror the U.S. rules, and a U.S. business should not assume its home-country analysis carries over. The analysis is fact-specific and should be completed before employees, contractors, inventory or operating functions are moved into Canada.

At a Glanc

Carrying on business — carrying on business in Canada is a domestic-law threshold under the Income Tax Act; employees, contracts or business operations in Canada may create exposure even without a permanent establishment.
Permanent establishment — permanent establishment is the treaty threshold that may limit Canadian federal taxation of U.S. business profits under Article VII.
Fixed place PE — a place of management, branch, office, factory or other fixed business location may create a PE under Article V.
Services PE — Article V(9) can deem a PE after specified 183-day tests are met, even without a fixed location.
Construction PE — a building site or construction or installation project generally becomes a PE only if it lasts more than 12 months.
Withholding and compliance — Regulation 105 withholding, a T2 return with Schedules 91 and 97, and GST/HST registration may apply even where treaty protection is claimed.
The Canadian filing and withholding obligations are a different question from whether Canadian federal tax is ultimately owed. Each must be worked through separately.

1.Carrying On Business in Canada vs. Permanent Establishment

A U.S. corporation should not treat “carrying on business in Canada” and “permanent establishment” as interchangeable terms. Carrying on business in Canada is a Canadian domestic-law concept. Permanent establishment is a treaty concept.

A non-resident corporation that carries on business in Canada, or that disposes of taxable Canadian property, generally must file a T2 Corporation Income Tax Return, whether or not any Canadian tax is ultimately payable. The CRA’s view of what constitutes carrying on business in Canada is broad and can include services physically performed in Canada, sales concluded through a Canadian agent, and maintaining inventory in Canada. A corporation may nevertheless claim treaty protection if its Canadian activities do not create a permanent establishment and it otherwise qualifies for treaty benefits.

Planning point: A conclusion that no Canadian federal income tax is payable under the treaty does not automatically mean there is no Canadian filing requirement.

2.Fixed Place of Business

Article V defines a permanent establishment as a fixed place of business through which the business of a resident of one country is wholly or partly carried on. The treaty specifically lists a place of management, branch, office, factory, workshop and certain natural-resource locations.

The practical analysis focuses on the business’s access to and use of the location, the degree of permanence and whether business activities are carried on through it. A U.S. company does not need to own the premises for the issue to arise.

Employee Home Offices

A Canadian employee working from home does not automatically create a permanent establishment. The facts matter. Relevant considerations include whether the employer requires the employee to work from that location, whether the location is used on an ongoing basis for the employer’s business, whether customers or suppliers interact with the business there, and the degree to which the location is effectively available to the enterprise.

Remote-work arrangements should therefore be reviewed before a U.S. company permits a key employee to work permanently from Canada.

3.Agents and Contract Authority

Under Article V, a person acting in Canada on behalf of a U.S. resident may create a deemed permanent establishment if the person has and habitually exercises authority in Canada to conclude contracts in the name of the U.S. resident. An independent broker, general commission agent or other independent agent acting in the ordinary course of business is generally treated differently.

Businesses should review who negotiates material terms, who approves transactions, where contracts are finalized and whether the Canada-based person’s conduct binds the U.S. enterprise.

4.Preparatory or Auxiliary Activities

Article V excludes certain limited activities from permanent-establishment treatment. Examples include facilities used solely for storage, display or delivery of goods, maintaining stock solely for storage, display or delivery, purchasing goods, collecting information, and certain advertising, information, research or similar activities of a preparatory or auxiliary character.

The wording “solely” matters. A location that performs broader sales, management, customer-service or operational functions requires a closer review. Businesses should analyze the complete activity rather than relying on the label placed on a warehouse or office.

5.Services Permanent Establishment

The Canada-U.S. treaty contains special services rules. Even if a U.S. enterprise does not otherwise have a permanent establishment, Article V(9) may deem one to exist when services are physically performed in Canada and one of two tests is met.

Individual Services Test

A services PE may arise where services are performed in Canada by an individual who is present there for 183 days or more in any twelve-month period and, during those periods, more than 50% of the enterprise’s gross active business revenues consist of income derived from the services performed in Canada by that individual.

Same or Connected Project Test

A services PE may also arise where services are provided in Canada for an aggregate of 183 days or more in any twelve-month period with respect to the same or connected project for Canadian resident customers, or for customers with a Canadian permanent establishment where the services relate to that establishment.

The treaty’s interpretive annex states that projects are connected when they form a coherent whole commercially and geographically.

Important: The services PE test is not simply “183 days in Canada.” The treaty contains additional conditions, and the applicable twelve-month period must be analyzed carefully.

6.Construction and Installation Projects

A building site or construction or installation project constitutes a permanent establishment under Article V only if it lasts more than 12 months. This rule is particularly relevant to U.S. construction, engineering, installation and specialized contracting businesses entering the Canadian market.

Project duration, related activities and the actual operating facts should be documented. Businesses should not assume that using separate contracts or invoices changes the treaty analysis.

7.Inventory and E-Commerce

U.S. e-commerce businesses often ask whether storing inventory in a Canadian warehouse or fulfillment centre automatically creates a permanent establishment. Article V contains exclusions for facilities and stock used solely for storage, display or delivery. This means inventory location alone does not settle the federal treaty question.

The broader operating arrangement still matters. Employees, sales functions, contract authority, service activities and other Canadian business functions may change the result. Provincial income and sales-tax rules are separate from the federal treaty PE analysis, and GST/HST registration turns on whether the business is carrying on business in Canada rather than on treaty PE status.

Fulfillment and marketplace sellers: A non-resident can be considered to be carrying on business in Canada for GST/HST purposes even without a permanent establishment. Marketplace fulfillment should be reviewed separately for federal income tax, provincial income or capital tax, GST/HST, and U.S. tax purposes. Treaty protection at the federal income tax level does not eliminate a GST/HST registration obligation.

8.Provincial Tax Exposure Is a Separate Analysis

The Canada-U.S. Tax Treaty generally addresses federal income taxes covered by the treaty. A U.S. business should not assume that the absence of a Canadian permanent establishment eliminates provincial filing or tax obligations.

Provinces apply their own corporate income tax, capital tax and sales-tax rules, and Quebec administers its own sales tax alongside the GST/HST. A business may therefore have provincial compliance obligations even when its Canadian federal business profits are protected under the treaty.

9.Regulation 105 Withholding on Services

Regulation 105 of the Income Tax Regulations generally requires a Canadian payer to withhold 15% of a fee, commission or other amount paid to a non-resident for services rendered in Canada, regardless of whether the non-resident is engaged in a treaty-protected business or ultimately owes Canadian tax. An additional 9% provincial withholding applies where the services are rendered in Quebec.

The withholding is not a final tax. It is a prepayment against the non-resident’s potential Canadian tax liability, and it is generally recovered by filing a Canadian income tax return, or reduced during the year by applying to the CRA for a waiver, including a treaty-based waiver where the treaty protects the income. Administrative relief that had allowed some subcontractor fee reimbursements to be paid without withholding ended on June 30, 2026, so U.S. businesses using Canadian subcontractors should confirm current withholding obligations on the full contract chain rather than relying on the prior administrative practice.

Practical point: Regulation 105 withholding applies to payments for services rendered in Canada even where the U.S. business believes, correctly, that it has no Canadian permanent establishment. A waiver application, filed in advance, is the mechanism for aligning withholding with the expected treaty position, not an assumption that no withholding applies.

10.Form T2 and Schedules 91 and 97

A non-resident corporation that carried on business in Canada or disposed of taxable Canadian property during the year generally must file a T2 Corporation Income Tax Return, even where the corporation takes the position that its business profits are exempt from Canadian tax under the treaty.

A corporation claiming treaty protection for a treaty-protected business generally must complete and attach Schedule 91, Information Concerning Claims for Treaty-Based Exemptions, along with Schedule 97, Additional Information on Non-Resident Corporations in Canada. These schedules identify the treaty article relied upon, the nature and location of the Canadian activity, and the Canadian customers involved, and are generally due within six months of the corporation’s year-end.

Filing on time matters. The CRA does not apply treaty protection automatically, and late or missing schedules can result in penalties even where no Canadian tax is ultimately owed.

GST/HST Registration

GST/HST registration is a separate question from federal income tax treaty protection. A non-resident that carries on business in Canada and makes taxable supplies in Canada generally must register for the GST/HST unless it qualifies as a small supplier, and a non-resident can be carrying on business in Canada for GST/HST purposes even without an income-tax permanent establishment.

A non-resident registering for the GST/HST without a permanent establishment in Canada may also be required to post security with the CRA. A U.S. business should review its GST/HST position separately from, and before relying on, its treaty permanent-establishment conclusion.

12.Practical Examples

Example 1: U.S. Consultant Visiting Canadian Clients

A U.S. consulting corporation sends its owner to Canada for short client engagements. It has no Canadian office and no Canadian employee. The company should first analyze whether the activity means it is carrying on business in Canada. It should then test Article V, including the services PE rules, the number of days spent providing services in Canada, and whether Regulation 105 withholding applies to the fees paid by the Canadian client.

Example 2: Canada-Based Sales Employee

A U.S. corporation hires a salesperson who lives in Canada, regularly solicits customers and participates in contract negotiations. The company should review both domestic Canadian carrying-on-business exposure and whether the employee’s activities create a fixed-place or agent PE, and should confirm its Regulation 102 payroll withholding position on the employee’s compensation.

Example 3: Inventory in a Canadian Fulfillment Centre

A U.S. online retailer stores goods with an independent Canadian fulfillment provider that performs storage and delivery functions. The treaty contains specific storage and delivery exclusions, but the company should still review the full operating arrangement, its GST/HST registration position, and a separate provincial-tax analysis.

Example 4: Long-Term Canadian Service Project

A U.S. service company sends personnel to work on the same Canadian customer project over an extended period. Even without a traditional office, the 183-day services PE rule may become relevant. The company should track days by project and individual rather than waiting until year-end, and should confirm whether the Canadian customer is withholding under Regulation 105.

Common Mistakes

Treating carrying on business in Canada and permanent establishment as the same test.
Assuming no permanent establishment means no Canadian tax return is required.
Counting only calendar-year days instead of reviewing the treaty’s applicable twelve-month periods.
Ignoring the services PE provisions because the company has no physical office.
Assuming Canadian inventory automatically creates, or never creates, a permanent establishment.
Allowing a Canada-based employee to negotiate or conclude contracts without reviewing agent PE exposure.
Ignoring provincial income and sales-tax obligations, including GST/HST registration, because the treaty protects federal business profits.
Assuming that treaty protection eliminates Regulation 105 withholding without filing a waiver application.
Waiting until the first CRA notice before filing Schedule 91 and Schedule 97.

Canada-U.S. Permanent Establishment Checklist

☐ Identify every Canadian location used by the U.S. business.

☐ Determine whether employees or contractors perform services physically in Canada.

☐ Track Canadian days by individual, project and rolling twelve-month period.

☐ Review whether any Canada-based person has authority to conclude contracts for the U.S. business.

☐ Review warehouses, inventory and fulfillment arrangements under the treaty’s activity exclusions.

☐ Identify construction or installation projects and track their duration.

☐ Determine whether the U.S. corporation is carrying on business in Canada under domestic law.

☐ Test permanent-establishment status separately under Article V.

☐ Confirm treaty eligibility, including the applicable Limitation on Benefits rules.

☐ Review Regulation 105 withholding, waiver applications, T2 filing, and Schedules 91 and 97.

☐ Complete a separate GST/HST registration and provincial income and sales-tax nexus review.

☐ Document the facts and treaty position each year because operating arrangements change.

Frequently Asked Questions

Does having Canadian customers create a permanent establishment?

Not by itself. The analysis focuses on the business’s Canadian activities, locations, people, contract authority and the treaty’s special rules. Selling to Canadian customers alone does not establish the answer.

Does a Canada-based employee create a permanent establishment?

Not automatically. An employee may create carrying-on-business exposure under Canadian domestic law, and the employee’s home office, activities and contract authority may also affect the treaty PE analysis.

Does storing inventory in Canada create a PE?

Not necessarily. Article V contains exclusions for certain storage, display and delivery activities. The entire operating arrangement, including the GST/HST position, must still be reviewed.

What is the 183-day services PE rule?

Article V(9) contains two special tests involving services performed in Canada for 183 days or more in a twelve-month period. Each test has additional requirements, so 183 days alone does not determine the result.

If there is no PE, does the U.S. corporation skip the T2 return?

Not necessarily. A non-resident corporation carrying on business in Canada generally must file a T2 return, along with Schedules 91 and 97 where treaty protection is claimed, even if the treaty ultimately exempts its business profits.

Does the treaty stop Regulation 105 withholding?

Not automatically. Regulation 105 withholding applies to payments for services rendered in Canada unless the CRA has approved a waiver, including a treaty-based waiver, before the payment is made.

Does the treaty protect the business from provincial or GST/HST obligations?

The federal treaty PE analysis does not replace provincial tax or GST/HST analysis. GST/HST registration and provincial income and sales-tax obligations must be reviewed separately.

Disclaimer

This article provides general information only and does not constitute tax, legal, accounting or business advice. Permanent-establishment and carrying-on-business determinations depend on the complete facts, treaty eligibility, business activities, personnel, locations, contracts and applicable federal and provincial rules. Professional advice should be obtained before beginning or expanding Canadian operations.

Official References

Department of Finance Canada, Canada-U.S. Tax Convention, consolidated text, Articles V and VII — Consolidated treaty text.
CRA — Income Tax Information for Non-Resident Corporations — Filing requirements for non-resident corporations carrying on business in Canada.
CRA — T2SCH91, Information Concerning Claims for Treaty-Based Exemptions — Form for claiming treaty-based exemptions on the T2 return.
CRA — Guide RC4445, T4A-NR — Guidance on payments to non-residents for services provided in Canada.
CRA — GST/HST Information for Non-Residents (Guide RC4027) — Guidance on GST/HST registration for non-residents doing business in Canada.
CRA — Register Voluntarily for a GST/HST Account — CRA guidance on voluntary and mandatory GST/HST registration.