Hiring US Remote Workers from a Canadian Company: Tax, Employment, and Compliance

The Compliance Landscape Is More Complex Than You Think

Remote work has dissolved geographic boundaries for talent acquisition, and Canadian startups are increasingly hiring US-based employees and contractors. The legal and tax implications of this decision are significant. When a Canadian company engages a US-based worker, it potentially triggers US federal and state tax obligations, creates a permanent establishment under the Canada-US Tax Treaty, and subjects the company to state-level employment laws that are, in many cases, more employee-friendly than Canadian equivalents.

There are three common structures for engaging US-based workers: direct employment, employer of record (EOR), and independent contractor. Each has distinct legal, tax, and practical trade-offs.

Structure 1: Direct Employment

Under direct employment, the Canadian company hires the US worker as a direct employee, either by establishing a US subsidiary or by registering as a foreign employer in the relevant state(s).

Tax Implications

The Canada-US Tax Treaty (Convention Between Canada and the United States of America With Respect to Taxes on Income and on Capital) determines whether the Canadian company has a "permanent establishment" (PE) in the United States. Under Article V of the Treaty, a PE includes a fixed place of business, a branch, an office, or — critically — a person who habitually exercises authority to conclude contracts in the name of the enterprise.

If a US-based employee has the authority to bind the Canadian company to contracts (e.g., a sales executive who signs deals), their activities may constitute a PE, which would subject the Canadian company to US federal corporate income tax on profits attributable to that PE. State income tax would also apply in most states.

Even if a PE is not created, the company must comply with US payroll tax obligations: federal income tax withholding, Social Security and Medicare taxes (FICA), and federal unemployment tax (FUTA). At the state level, the company must withhold state income tax and comply with state unemployment insurance requirements.

Employment Law Obligations

US-based employees are subject to the employment laws of the state where they work, not Canadian employment law. This means the Canadian company must comply with state-specific requirements for:

• Minimum wage and overtime: Federal minimums under the Fair Labor Standards Act (FLSA), plus state-specific requirements (e.g., California, New York, and Washington have significantly higher minimums)
• At-will employment: Most US states follow at-will employment, meaning the employer can terminate without cause and without notice — the opposite of Canadian common law. However, exceptions exist, and some states (like California and Montana) have additional protections
• Benefits: No federal requirement for health insurance (for employers with fewer than 50 employees), but state mandates may apply
• Workers' compensation: Mandatory in virtually all states
• Anti-discrimination: Federal (Title VII, ADA, ADEA) and state anti-discrimination laws apply

Practical Considerations

Direct employment requires registering the Canadian company as a foreign employer with the IRS (obtaining an EIN), registering with relevant state agencies, setting up US payroll, and complying with ongoing federal and state filing requirements. For a single US hire, the administrative burden is substantial.

Structure 2: Employer of Record (EOR)

An employer of record is a third-party company that serves as the legal employer of the US worker. The EOR handles payroll, tax withholding, benefits administration, and compliance with federal and state employment laws. The Canadian company directs the worker's day-to-day activities, but the EOR is the employer on paper.

Advantages

• No need to establish a US entity or register as a foreign employer
• Payroll, tax, and employment law compliance handled by the EOR
• Faster onboarding — weeks instead of months
• Reduced PE risk, since the worker is employed by the EOR, not by the Canadian company

Risks and Limitations

• Joint employment risk: If the Canadian company exercises sufficient control over the worker's activities, it may be deemed a "joint employer" under US law, with all the obligations that entails
• IP ownership: The employment agreement is between the worker and the EOR, not between the worker and the Canadian company. IP assignment provisions must be carefully structured to ensure that intellectual property flows through to the Canadian company
• Cost: EOR fees typically range from $500-$1,500 per employee per month, in addition to the employee's compensation and benefits
• Limited control over employment terms: The EOR's standard employment agreement may not include all the provisions the Canadian company wants (e.g., specific non-solicitation or confidentiality terms)

Structure 3: Independent Contractor

Engaging the US worker as an independent contractor avoids US employment law obligations and payroll tax requirements — but only if the relationship is genuinely independent. The US uses its own classification tests:

• IRS 20-factor test (common law test): Examines behavioral control, financial control, and the type of relationship
• ABC test (used in California under AB 5 and in several other states): Presumes the worker is an employee unless the hiring entity proves all three prongs — the worker is free from control, performs work outside the usual course of the hiring entity's business, and is customarily engaged in an independently established trade

Misclassification in the US carries severe penalties, including back taxes, penalties, and in some states (notably California), per-employee fines that can reach thousands of dollars per violation.

IP Considerations

For US-based contractors, the IP assignment analysis follows US law, not Canadian law. Under US copyright law, the "work made for hire" doctrine has specific requirements that differ from Canadian Copyright Act s.13(3). A written IP assignment agreement governed by the law of the contractor's state is essential.

The Canada-US Tax Treaty and Social Security

The Canada-US Social Security Totalization Agreement prevents double social security contributions for workers who are temporarily assigned across the border. A Canadian employee temporarily working in the US (or vice versa) may be exempt from US Social Security contributions for up to five years if they have a Certificate of Coverage from Service Canada. This applies primarily to secondments and temporary assignments, not to permanent US-based hires.

Practical Recommendations

• One or two US hires: An EOR is typically the most practical and cost-effective structure. It avoids the need for US entity formation and handles compliance.
• Three or more US employees: Consider establishing a US subsidiary (typically a Delaware LLC or C-Corp) to serve as the employer. The upfront legal and administrative cost is higher, but the per-employee marginal cost decreases.
• Genuine independent contractors: Use a properly drafted contractor agreement, ensure the relationship satisfies both Canadian and US classification tests, and include robust IP assignment provisions.

Cross-border employment is not a do-it-yourself exercise. The intersection of Canadian and US tax law, employment law, immigration law, and IP law creates a compliance matrix that requires professional guidance. The cost of getting it wrong — retroactive tax liability, misclassification penalties, and IP ownership disputes — far exceeds the cost of getting it right from the start.