A European company that hires its first employee in the United States rarely treats the decision as a structuring event. The hire is a salesperson or an account manager working from home in Austin or Boston, paid through a payroll provider and reporting to a manager in Amsterdam. No office is leased. No subsidiary is incorporated. The group continues to file one corporate tax return, in its own country, and assumes that is the end of it.
It is often not. Whether a foreign enterprise has a taxable presence in the United States is answered by the convention between the two states, and the convention does not ask about the lease. It asks whether business is carried on through a fixed place, and whether a person acting for the enterprise habitually exercises authority to conclude contracts in its name. A house in Austin can satisfy the first. A salesperson with a commercial mandate satisfies the second.
What the convention means by a fixed place of business
Under Article 5(1) of the convention between the United States and the Netherlands, a permanent establishment is a fixed place of business through which the business of an enterprise is wholly or partly carried on. Article 5(2) adds an illustrative list: a place of management, a branch, an office, a factory, a workshop. Nothing in it requires a lease, a nameplate or a separate legal entity.
Article 5(3) sets a duration test for one category only. A building site or construction or installation project constitutes a permanent establishment only if it lasts more than twelve months. There is no equivalent grace period for an employee working from a spare bedroom. A home office is analyzed under paragraph 1 and under the exclusions in paragraph 4, not against a clock.
Paragraph 4 is where most home office arrangements are argued. It removes from the definition a fixed place maintained solely for storage, display or delivery, solely for purchasing goods or collecting information, or solely for any other activity of a preparatory or auxiliary character. The word carrying the weight is solely. A researcher gathering market data may fit within it. A person who carries the revenue-generating function of the enterprise in the United States does not.
The dependent agent, and the employee who never signs
Article 5(5) reaches arrangements with no fixed place at all. Where a person other than an agent of independent status acts on behalf of an enterprise and has, and habitually exercises, authority to conclude contracts in the name of the enterprise, the enterprise is deemed to have a permanent establishment in that state in respect of the activities that person undertakes. Where those activities are limited to the preparatory or auxiliary matters in paragraph 4, the rule does not apply.
Two words decide most cases. Habitually excludes the isolated transaction and captures the pattern. Authority is not confined to a written power of attorney. Where a salesperson negotiates price, scope and delivery, and the signature in Europe is applied to terms already settled in Texas, the substance of the authority sits where the negotiation happened.
This convention retains the older formulation, authority to conclude contracts in the name of the enterprise, rather than the wider language in more recent instruments about a person who habitually plays the principal role leading to the conclusion of contracts. The difference runs the other way from what groups usually assume: commissionaire arrangements that the wider language was written to catch are not caught by this text. Reading the convention that actually governs the group, rather than a recollection of the newer standard, is the whole of the exercise.
Article 5(6) preserves the independent agent. A distributor or broker acting in the ordinary course of its own business creates no permanent establishment for its principal. An employee is not an independent agent, and calling one a contractor does not make him one.
What the exposure costs once it exists
Section 882(a)(1) of the Internal Revenue Code taxes a foreign corporation engaged in a trade or business in the United States as provided in section 11, on its taxable income effectively connected with that business. Section 11(b) fixes that rate at 21 per cent of taxable income, the rate in force in 2026. Where the convention applies, only the profits attributable to the permanent establishment fall within the charge, computed under Article 7.
Then the second layer. Section 884(a) imposes on a foreign corporation a tax of 30 per cent of the dividend equivalent amount, a proxy for branch profits treated as repatriated. Section 884(e) allows a convention to reduce that charge, but only where the corporation is a qualified resident of the treaty state. Article 11 of the convention permits the additional tax and, in paragraph 3, caps it at the rate in Article 10(2)(a), which is 5 per cent where the beneficial owner is a company holding directly at least 10 per cent of the voting power. A Dutch enterprise that is a qualified resident therefore faces 21 per cent and then 5 per cent, rather than 21 per cent and then 30 per cent.
The distance between those two outcomes is why limitation on benefits is not a formality. Article 26 conditions access to the convention, and the qualified resident test in section 884(e) runs alongside it. A holding company without owners resident in the Netherlands is where the branch profits tax returns at the statutory rate.
The deductions that disappear if no return is filed
Section 882(c)(2) provides that a foreign corporation receives the benefit of the deductions and credits allowed to it only by filing a true and accurate return. Without a return, the charge is computed on gross effectively connected income rather than on profit.
Treasury Regulation section 1.882-4(a)(3)(i) sets the outer limit. Where the corporation filed a return for the immediately preceding year, or the current year is its first, the return must be filed within 18 months of the due date under section 6072 for the deductions and credits to survive. Where no return was filed for the preceding year, the period ends on the earlier of that date and the date the Internal Revenue Service mails a notice denying the deductions.
The practical consequence is that a company discovering a permanent establishment three years after it arose has lost more than interest on unpaid tax. In one mandate a European group’s United States activity had run for two full years through two remote hires. The exposure that mattered was not the tax on the margin. It was the clock that had already run against the deductions.
Payroll does not wait for the treaty analysis
Employment tax obligations arise from the presence of an employee working in the United States. They do not depend on the permanent establishment analysis, and no convention removes them. Publication 15 for 2026 sets the social security tax at 6.2 per cent each for employer and employee on wages up to a base limit of 184,500 dollars, and the Medicare tax at 1.45 per cent each with no base limit. Employers must also withhold the additional Medicare tax of 0.9 per cent on wages above 200,000 dollars in a calendar year, without regard to filing status.
Federal income tax withholding, state income tax withholding where the state imposes one, state unemployment insurance and workers compensation cover run alongside. Each requires registration, and each leaves a footprint visible to anyone who looks.
Groups often engage an employer of record to carry these obligations. That solves the payroll registration problem. It does not answer the permanent establishment question, because the employer of record is not the enterprise whose business the employee is carrying on.
Social security is the one charge that can be switched off. Article 9 of the agreement between the two states leaves a worker sent from one territory to the other, for a period not expected to exceed five years, subject to the laws of the sending state alone. What counts is the expectation at the time of the posting. And it covers a posted worker, not a local hire, which is what the employee in Austin is.
The protective return and the disclosure that goes with it
Where the position is that no permanent establishment exists, it still has to be taken somewhere. A foreign corporation that reaches that conclusion files a protective return. The purpose is not to report tax but to start the clock under section 1.882-4, so that if the position fails the deductions remain available.
Where the position rests on the convention, section 6114 requires disclosure of a treaty-based return position. Section 6712 imposes a penalty of 1,000 dollars for each failure, and 10,000 dollars in the case of a C corporation. The amount is not the point. A position taken openly on a return has a documented history, while a position never disclosed is one found by somebody else.
Groups sometimes resist on the theory that filing invites scrutiny. The reverse is closer to the truth. The remote employee, the payroll registration and the customer invoices already establish the presence. The filing establishes the analysis.
State exposure runs on a separate track
None of this is settled at state level by a convention. A state is not party to the treaties the federal government concludes, and the prevailing position is that the treaty does not bind it. A company with no federal permanent establishment can still owe income or franchise tax in the state where its employee lives and works, measured against a nexus standard the state writes for itself.
The one federal statute reaching state income taxation is Public Law 86-272, codified at 15 U.S.C. section 381. It protects a company whose only activity in a state is the solicitation of orders for sales of tangible personal property, where those orders are sent outside the state for approval and, if approved, filled from a point outside the state. A software company, a services business and a licensor all sit outside it, because none of them sells tangible personal property.
What to decide at the point of hiring
Three decisions carry most of the outcome. The first is what the person will actually do, since a support engineer answering tickets and a sales lead negotiating terms are not the same fact pattern, and the job description is the primary evidence. The second is whether the person will hold, in substance, authority over commercial terms, and whether the group is prepared to keep that authority in Europe and to record that it did. The third is whether the group would rather accept a United States subsidiary, price its intragroup services at arm's length and take the certainty.
None of those is a tax decision in isolation. They are decisions about how the business is run, and the tax result follows the answer rather than the other way round. That is why the analysis belongs at the point of hiring, when it is inexpensive, rather than at the point of audit, when it costs the tax, the interest, the penalties and the deductions.