EOR and Permanent Establishment Risks Explained (2026)

There are several factors that can create a PE, including:

• Having a physical office, factory, or branch in a foreign country.
• Having employees working in a foreign country.
• Carrying out business activities through agents or other intermediaries in the foreign country.

The most prominent risk of using an EOR is the fact that your company can be deemed the actual employer of employees in court. This can occur if the EOR is considered to be acting as an agent for the company or if the employees hired through the EOR are deemed to be working for the company rather than the EOR in a court case. If you are deemed the actual employer, you become subject to the taxes and costs associated with having a PE in that country. You can also be subject to double taxation.

If you’re hiring several employees in a country or they have worked for you for more than a year, you run the risk of being deemed the actual employer and facing costs associated with not having a permanent establishment in the country you hired from.

Most countries don’t set a maximum number for EOR workers, but there are rules of thumb. “If you have one or two employees for six to 12 months, subject to the activities of the individuals, you should generally be fine. By the time you have six employees for two or three years, however, your ability to argue you don’t have a PE is going to be difficult,”.

Tom Lickess
Global Head of International Tax Advisory – Vistra

There is no rule of thumb for how many employees you can have in one location and how long they can work for you. Every country has different regulations around this subject. It’s important to be aware that the more people you hire, and the longer those hires work for your company, you become increasingly at risk if you don’t have a permanent establishment.

Even if your company does not have a physical presence in the country, you can still be considered to have a PE in a foreign country. For example, if your company regularly carries out business in a foreign country through your website or through the use of independent contractors, you may be considered to have a PE in the foreign country.

The determination of whether a company has a PE in a foreign country is typically made on a case-by-case basis, taking into account the specific facts and circumstances of the company’s business activities in the foreign country.

“Perhaps a US company with a small UK-based sales team doesn’t believe it has a taxable presence in the UK, so it pays US taxes on its earnings attributable to for example UK or European customers,” Lickess says. “If the UK tax authority determines that the UK-based team constitutes a taxable presence or permanent establishment of the US company, then UK corporate tax may well be levied on this same income that has been subject to US tax.” Penalties and interest may also apply.

Tom Lickess
Global Head of International Tax Advisory – Vistra

There is no specific list of roles or positions that automatically require a permanent establishment (PE) in a foreign country. Rather, the presence of a PE is determined based on the nature and extent of a company’s business activities in a foreign country.

Your company becomes liable for corporate income tax on profits attributed to the PE. Tax authorities calculate this using the “force of attraction” principle or the “limited force of attraction” approach outlined in OECD Model Tax Convention Article 7, meaning they may tax not just PE-related income but all income from similar activities in that country. According to a 2025 KPMG survey, average effective corporate tax rates across OECD countries range from 23.1%, making unexpected PE tax bills substantial.

If the country where PE is triggered lacks a double taxation treaty with your home country, the same income gets taxed twice. The UN’s 2025 Report on Treaty Practices notes that over 40% of developing countries lack comprehensive tax treaties with major economies, leaving companies exposed to full double taxation with no relief mechanism. This can effectively double your tax burden on foreign-sourced revenue.

Tax authorities commonly audit retroactively. The UK’s HMRC can assess back taxes for up to 20 years in cases of deliberate non-compliance, according to HMRC’s Compliance Handbook. Penalties range from 0% for unprompted disclosures to 100% of tax due for deliberate concealment. Interest accrues on unpaid amounts from the original due date, compounding the total cost significantly.

Your company must register for corporate tax, file annual returns, maintain local accounting records, and potentially appoint a local tax representative. A 2025 EY Global Tax Alert survey found that the average cost of establishing local tax compliance infrastructure in a new jurisdiction runs between $50,000–$150,000 in the first year alone, including legal fees, accounting systems, and administrative overhead.

If your EOR-hired employees actively close deals, sign contracts, or negotiate terms on behalf of your company, tax authorities can determine they constitute a dependent agent permanent establishment under Article 5 of the OECD Model Tax Convention. A 2024 Deloitte analysis of PE cases found that sales-related activities were the single most common trigger for agency PE determinations, accounting for 38% of cases reviewed across 12 jurisdictions.

Hiring executives or country managers through an EOR signals to tax authorities that strategic decision-making happens locally. The OECD’s 2024 commentary on Article 5 explicitly notes that a person who “habitually exercises authority to conclude contracts” in a country creates an agency PE regardless of employment structure. A country manager with hiring authority or budget control is a red flag that an EOR arrangement alone cannot resolve.

Even supporting employees can create PE risk if their activities establish a pattern of sustained market engagement. A 2025 PwC Global Tax Policy survey found that 62% of tax authorities now examine the cumulative effect of business activities rather than individual transactions when making PE determinations. If your EOR employees are building client relationships, attending local trade events regularly, or generating leads, these activities may collectively constitute a PE even though no single employee crosses the threshold.

Germany applies both fixed-place and agency PE definitions broadly under the OECD Model Convention, which it has incorporated into domestic law via the Investment Tax Act. The German Federal Central Tax Office (BZSt) has increased audits of companies using EORs by 23% since 2023, according to a 2025 Deloitte analysis. A single employee exercising habitual authority to conclude contracts in Germany can trigger agency PE — even without a physical office. Companies with 3+ employees in Germany for over 12 months face elevated scrutiny, and back-tax assessments commonly reach €500,000+ including penalties.

HMRC applies a multi-factor test for PE determinations that considers the duration, nature, and continuity of business activities — not just headcount. Under UK corporate tax law, a company can be deemed to have a PE if it carries on trade through a “fixed place” for 6+ months or if a dependent agent habitually concludes contracts on its behalf. HMRC can assess back taxes for up to 20 years in cases of deliberate non-compliance, with penalties up to 100% of tax due. A 2024 EY UK Tax Alert noted that EOR-related PE inquiries have risen 18% year-over-year, with particular focus on US technology companies with UK-based sales teams.

The Netherlands applies a 183-day threshold for permanent establishment under most tax treaties, but the Dutch Tax and Customs Administration also examines “substance” — whether the company has genuine economic activity in the Netherlands. Construction-site PEs can trigger after just 12 months under Article 5(3) of the OECD Model. Companies using EORs in the Netherlands should track employee count and duration carefully, as Dutch authorities have clarified that even a single employee with contract-signing authority can create an agency PE.

Singapore’s Inland Revenue Authority (IRAS) takes an aggressive stance on agency PE, particularly for companies in financial services and technology. Under Singapore’s Income Tax Act, a non-resident company can have a PE if it has an agent — including an EOR — habitually exercising authority to conclude contracts on its behalf. The IRAS has issued guidance clarifying that EOR arrangements do not automatically eliminate PE risk when the employee is performing revenue-generating activities for the foreign company. A 2025 PwC Singapore Tax Brief reported that PE assessments against EOR-using companies increased 31% between 2023 and 2025.

Australia’s PE rules under the Income Tax Assessment Act differentiate between construction-site PEs (6-month threshold) and service PEs (183 days within any 12-month period). The Australian Taxation Office (ATO) has issued specific guidance on EOR arrangements, noting that where an EOR employee’s activities go beyond administrative functions to include sales or contract negotiation, the EOR may be deemed a dependent agent PE. A 2025 KPMG Australia report found that companies with 5+ EOR employees in Australia face a 1-in-4 probability of PE assessment within 3 years.

List each EOR employee by country, role, and primary activities. Flag anyone who negotiates contracts, signs deals, manages budgets, or exercises authority on behalf of the company. Deloitte’s 2024 PE analysis found that 38% of agency PE determinations involved employees whose official job descriptions understated their actual authority — a sales coordinator who also closes deals is a PE trigger in most jurisdictions.

Compare your employee count per country against the PE risk thresholds outlined in this guide. Countries like Germany, the UK, and Singapore have lower thresholds than the US or Canada. A general rule: if you have 5+ employees in one country for over 12 months, or any employee with contract-signing authority, schedule a formal PE risk review with international tax counsel.

Your EOR service agreement should explicitly state that the EOR acts as the legal employer — not as your agent. Remove any clauses that give the EOR authority to negotiate or conclude contracts on your behalf. Have international tax counsel review the agreement annually, as EOR providers sometimes update terms that may inadvertently expand the scope of agency.

Confirm that your home country has a double taxation treaty with every country where you have EOR employees. The UN’s 2025 Report on Treaty Practices notes that over 40% of developing countries lack comprehensive tax treaties with major economies, leaving companies exposed to full double taxation. Where treaties exist, verify that they include Article 5 PE definitions and Article 7 business profit provisions.

Maintain documentation showing that your EOR employees perform genuine employment functions for the EOR entity — not on behalf of your company. This includes payroll records managed by the EOR, employment contracts between the EOR and the employee, performance reviews conducted by the EOR, and clear separation between the employee’s day-to-day activities and your company’s strategic decisions. This documentation is your primary defense in a PE audit.

No. An EOR significantly reduces PE risk by acting as the legal employer and creating separation between your company and foreign-based workers, but it cannot eliminate risk entirely. Activities like revenue-generating sales, contract negotiations, and strategic decision-making by employees in the host country can still trigger PE regardless of the EOR arrangement. A 2025 PwC survey found that 62% of tax authorities now examine cumulative business activity patterns when making PE determinations, meaning even supporting roles can contribute to a PE finding.

There is no universal threshold, but most tax practitioners consider 5–6 employees in a single country for 2+ years as the point where arguing against PE becomes difficult. Tom Lickess, Vistra’s Global Head of International Tax Advisory, notes that one or two employees for 6–12 months is generally manageable, but six employees for two to three years makes defending against a PE determination significantly harder. Each country applies its own criteria, and factors like the nature of work, seniority, and revenue contribution all factor into the assessment.

Using an EOR means the EOR handles employment-related tax obligations (payroll taxes, social contributions, withholding) on your behalf. However, if your company is deemed to have a PE, you become directly liable for corporate income tax in that jurisdiction — which is separate from employment taxes. A 2024 KPMG survey found that companies using EORs still face corporate tax audits in 15% of cases where tax authorities challenge the EOR arrangement’s sufficiency. See our guide on EOR tax implications for a full breakdown of what taxes apply.

A fixed-place PE arises when your company has a physical location (office, factory, branch) in a foreign country where business is carried on continuously. An agency PE arises when a person — including an EOR — habitually exercises authority to conclude contracts on your company’s behalf in that country, even without a fixed location. The OECD Model Tax Convention Article 5 defines both types, and an EOR can inadvertently create an agency PE if its role extends beyond employment administration into contract conclusion or deal negotiation. See our permanent establishment guide for the full framework.

Choose an EOR that has a track record of compliance with local employment laws and a strong reputation in the country where the employees will be working. Prefer EOR providers that own their local entities rather than relying on third-party partners — owned entities provide stronger legal separation between your company and the foreign employment relationship, reducing the risk that the EOR is considered an agent of the company. A 2025 Globalization Partners compliance report found that EORs with owned entities in-country had 73% fewer PE challenges than those using partner-based models.

Have a clear written agreement in place between the company and the EOR outlining the EOR’s responsibilities and the company’s lack of control over the EOR’s activities. The agreement should explicitly state that the EOR acts as an independent employer, not as the company’s agent, and that the EOR retains sole authority over hiring, termination, compensation, and working conditions. This can help demonstrate that the EOR is acting as an independent contractor rather than as an agent of the company.

Make sure that the employment relationship between the EOR and the employees is clear and that the employees are considered to be working for the EOR rather than the company. This can be achieved through the use of appropriate documentation — employment contracts between EOR and employee, EOR-managed payroll, and EOR-conducted performance reviews — and by ensuring that the EOR has reasonable control over the employees’ work and decisions related to their employment.

To minimize the risk of the EOR being considered an agent of the company, consider limiting the scope of the EOR’s activities to those that are necessary for employment administration — payroll, benefits, tax withholding, and compliance. Avoid giving the EOR broad authority to act on behalf of the company in a foreign country, including contract negotiation, deal closing, or strategic decision-making. The narrower the EOR’s role, the stronger your defense against an agency PE finding.

PE laws and regulations change over time, so it is important to regularly review your company’s business activities in a foreign country and assess whether they could potentially create a PE. Schedule quarterly PE risk reviews with international tax counsel — not just your EOR provider — to evaluate headcount, employee activities, contract authority, and country-specific regulatory changes. If the risk of a PE is identified, consider taking steps to mitigate the risk, such as by modifying the company’s business activities or the relationship with the EOR.

One reason your company may want to switch to a permanent establishment is if you plan to carry out significant business activities in a foreign country over an extended period of time. In this case, the costs and benefits of establishing a PE may outweigh those of using an EOR.

Another reason you may want to switch to a PE is if you are at risk of creating a PE through the use of your EOR. If the EOR is considered to be acting as an agent of the company or if the employees hired through the EOR are considered to be working for the company rather than the EOR, your company may be at risk of being taxed as if it had a PE in the foreign country. In this case, establishing a PE may be a more appropriate way for the company to conduct its business activities in a foreign country.

Before switching from an EOR to a PE, it is important for the company to carefully consider the costs and benefits of each approach and to consult with legal and tax advisors to ensure that it is making the best decision for your business.