Independent Contractor or Dependent Agent? The U.S. Presence Test
There are two separate legal systems asking whether a person acting for a foreign business in the United States exposes that business to U.S. tax, and they are not the same system wearing different labels. One lives in the Internal Revenue Code and asks whether the foreign business is engaged in a U.S. trade or business at all. The other lives in a bilateral tax treaty and asks the narrower question of whether an agent has created a permanent establishment. A business can clear one test and fail the other, and the two tests do not even use the same vocabulary for what makes an agent safe. This looks at the two side by side, because treating them as interchangeable is where the analysis usually goes wrong.
Two different starting points
The domestic inquiry starts with IRC §864(b), which defines when a nonresident alien or foreign corporation is considered engaged in a trade or business within the United States. The performance of personal services within the United States generally counts, and so does the activity of an agent acting on behalf of the foreign person, under principles developed in the regulations and in case law addressing agency attribution. Treas. Reg. §1.864-7 supplies the operative attribution rules for whether an agent's activity and even an agent's office can be treated as the foreign person's own for purposes of the trade or business inquiry.
The treaty inquiry starts somewhere else entirely. Most U.S. income tax treaties define a permanent establishment in an article modeled on Article 5 of the OECD or U.S. Model Tax Convention. A fixed place of business is the primary route to a permanent establishment. The dependent agent provision is a separate route, deeming a permanent establishment to exist where a person other than an independent agent acts on behalf of the enterprise and has, and habitually exercises, authority to conclude contracts in the enterprise's name. The two systems ask related but distinct questions using different tests, and a business can be engaged in a U.S. trade or business under the Code while having no treaty permanent establishment at all, which is precisely the protection a treaty is designed to provide once the domestic threshold is crossed.
The domestic independent agent carve-out
IRC §864(b)(1) sets out exceptions to what otherwise counts as a U.S. trade or business, mostly aimed at trading in stocks, securities, and commodities through a resident broker, commission agent, custodian, or other independent agent. IRC §864(b)(1)(C) is the specific limb: trading in stocks or securities or commodities for the taxpayer's own account is not, by itself, a U.S. trade or business if the trading is effected through a resident broker, commission agent, custodian, or other agent of independent status acting in the ordinary course of that agent's business. This exception is narrower in subject matter than people sometimes assume. It is written around trading activity for the taxpayer's own account, not around every kind of agency relationship a foreign business might use to operate in the United States generally. A foreign fund trading securities through an independent U.S. broker is the paradigm case the statute has in mind. A foreign manufacturer selling goods through a U.S. sales agent is not directly inside §864(b)(1)(C)'s text, though the independence factors the courts and the IRS look at when applying the broader agency-attribution rules under Treas. Reg. §1.864-7 track closely with the independence concept Congress used in the trading context. The same underlying idea, that a genuinely independent intermediary acting in the ordinary course of its own business does not become the foreign principal's own presence, runs through both.
The treaty dependent agent test
The treaty test is built differently and applies more broadly across business types, not just trading. Two elements have to both be present for a dependent agent to create a permanent establishment under a typical U.S. treaty's Article 5 agency paragraph. First, the agent has to lack independent status, meaning it is not an independent agent acting in the ordinary course of its own business, the treaty's own carve-out and the mirror of the domestic concept. Independence under the treaty test is evaluated on two axes: legal independence, meaning the degree of instruction and control the principal exercises over the manner of the agent's work, and economic independence, meaning whether the agent bears meaningful business risk from the activity rather than being economically dependent on a single principal. Second, even a dependent agent only creates a permanent establishment if it has, and habitually exercises, authority to conclude contracts in the name of the enterprise. Both words carry weight. "Habitually" excludes an isolated transaction outside the agent's ordinary pattern of dealing. "Authority to conclude contracts" reaches not just formal signing power but a person who negotiates all the material terms in a way that binds the principal even if someone abroad performs a largely ministerial final approval.
Side by side
| Feature | Domestic: IRC §864(b)(1)(C) independent agent exception | Treaty: dependent agent permanent establishment test |
|---|---|---|
| Legal source | Internal Revenue Code and Treas. Reg. §1.864-7 | Bilateral treaty's Article 5, agency paragraph |
| Subject matter reach | Narrowly written around trading in stocks, securities, and commodities for the taxpayer's own account; broader agency attribution comes from regulations, not this specific carve-out | Applies generally across business types: goods, services, licensing, any activity conducted through an agent |
| What triggers exposure | Being engaged in a U.S. trade or business under §864(b), which has a comparatively low threshold | Habitual authority to conclude contracts in the enterprise's name, a comparatively higher threshold |
| What protects the foreign business | Trading effected through a resident broker, commission agent, custodian, or other agent of independent status acting in the ordinary course of its business | The agent being both legally and economically independent, and acting in the ordinary course of its own business |
| Effect of qualifying | The specific trading activity is not itself a U.S. trade or business | No permanent establishment exists, so business profits are protected from U.S. tax under the treaty's business profits article even if a U.S. trade or business exists under the Code |
| Relationship to the other test | Does not by itself resolve the treaty question | Does not by itself resolve the domestic trade or business question |
Why a business can pass one test and fail the other
Because the thresholds sit at different heights and measure different things, a foreign enterprise can be engaged in a U.S. trade or business under the low bar of §864(b) purely because its U.S.-based agent's activity is attributed to it under Treas. Reg. §1.864-7, and yet have no treaty permanent establishment because that same agent does not have and habitually exercise authority to conclude contracts. In that case the enterprise technically has a U.S. trade or business and income that is arguably effectively connected under §864(c), but a properly claimed treaty position under the business profits article, disclosed on Form 8833 as required by IRC §6114, shields the profits from actual U.S. tax because no permanent establishment exists. The reverse can also happen, though it is rarer. An agent could satisfy the higher habitual-authority threshold for a treaty permanent establishment while the underlying activity, viewed purely under domestic law without treaty protection, would not independently register as a U.S. trade or business. This matters most for a business resident in a country with no U.S. tax treaty at all, or one that cannot satisfy the applicable limitation on benefits article, because in that situation only the domestic test is in play and the more protective treaty threshold is never reached.
A worked comparison
A foreign software company engages a U.S.-based sales representative. The representative is paid a base salary plus commission, works exclusively for this one company, follows a detailed playbook the company provides on pricing and discount limits, and routinely finalizes deal terms with customers before sending paperwork to the home office for a signature that is never actually renegotiated. Under the domestic test, this representative's activity is very likely attributed to the foreign company under Treas. Reg. §1.864-7, because the representative is not independent in any meaningful sense and the company is, as a factual matter, conducting sales operations in the United States through this person. The company is engaged in a U.S. trade or business. Under the treaty test, the same facts point toward a dependent agent creating a permanent establishment. The representative lacks legal independence because of the detailed instructions and the exclusivity, lacks economic independence because compensation depends on this single principal, and habitually exercises authority to conclude contracts because the home-office signature is ministerial rather than a genuine renegotiation. Both tests point the same direction here, which is the common outcome once the facts are this clear. The harder cases are the ones in the middle, where a representative works for several principals but derives most of its income from one of them, or has some but not unlimited discretion over pricing.
Where this fits with the broader agency analysis
This comparison is deliberately narrow. It is not a full walk-through of every factor courts and IRS practice look at when classifying a U.S.-based person as dependent or independent, the control, risk, and exclusivity factors that apply on both the Code side and the treaty side. That broader factor-by-factor review, along with case law addressing what makes an agency relationship exist in the first place, is covered elsewhere on this site. What this piece adds is the structural point that the domestic and treaty analyses are not the same test with different names. They have different textual triggers, different thresholds, and different consequences, and a business relying on treaty protection needs to run both analyses rather than assuming that failing, or passing, one settles the other.
What to check
Identify which treaty, if any, governs the relationship, and read its Article 5 agency paragraph rather than relying on a general description of how dependent agent rules work, because the specific wording and the limitation on benefits requirements vary by treaty. Separately, work through the domestic §864(b) and §864(c) attribution questions on their own terms, because a business without treaty protection, or unable to satisfy limitation on benefits, has to rely entirely on the domestic analysis. Where a treaty position is being taken that no permanent establishment exists despite an agent operating in the United States, that position is generally required to be disclosed on Form 8833, and the disclosure obligation under IRC §6114 carries its own penalty under IRC §6712 for a position that should have been reported and was not.
What the file should show for each test
Because the two tests look at different things, the evidence that supports one does not automatically support the other. For the domestic attribution question under Treas. Reg. §1.864-7, the relevant record is largely about control and regularity: written instructions given to the agent, the frequency with which the agent exercises any authority it has, and whether the agent maintains a stock of the principal's merchandise or otherwise operates as an extension of the principal's own operations. For the treaty question, the record has to speak specifically to legal independence, economic independence, and the habitual exercise of contract-concluding authority, since those are the elements a treaty examiner or a foreign tax authority applying its own mirror-image test will actually look for. A services agreement that was drafted years ago and never updated as the relationship evolved is a common source of mismatch between the two analyses. The agreement might describe an arrangement consistent with independence, multiple clients, no detailed instructions, compensation tied to results, while the actual day-to-day conduct has drifted toward exclusivity and detailed direction. Because the treaty test and the domestic test both look past the label to the substance, an outdated agreement does not protect either position. It is worth reviewing the agreement against current practice periodically rather than only when a question is raised.
This is general information about how the domestic and treaty agency tests are structured. It is not an assessment of any specific relationship, and the classification of a particular agent depends on facts that belong in a direct review with a qualified adviser and, where contract language is at issue, with your attorney.