Possibly. Size alone does not answer it, because the reporting categories are not all about control. A controlling interest brings the fullest reporting, but contributing property to a foreign partnership, or acquiring or disposing of a reportable interest, can bring an obligation on a much smaller holding. So the question is not how big the stake is but which category the facts fall into, and more than one can apply in the same year. A minority investor who bought in and sold out in the same period can have more to report than one who simply held throughout.
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US persons who control a foreign partnership, contributed property to one, or acquired or disposed of a reportable interest. The obligation is decided by facts rather than by tax owing, which is why a nil position does not remove it.
The rule on who files
US persons who control a foreign partnership, contributed property to one, or acquired or disposed of a reportable interest.

The exception that catches people
Much of what other countries call an ordinary business vehicle — a European partnership, an offshore fund tier, a joint venture — is a foreign partnership here, and the schedules ask for allocations the foreign vehicle never computed on a US basis.
What to do next
The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on 8865 — foreign partnership. Whatever you have is enough to start the conversation, including nothing but the dates.
Reviewed for accuracy for the 2025 and 2026 filing seasons by Udit Gupta, International Tax, Cross-Border Tax & Transfer Pricing Expert, Legal Quotient Consultants. This is general information rather than advice about your file — a short call is the way to get the second.
What these engagements turn on
Fund tiers traced to find the reportable partnership interests
A US investor held positions in several offshore funds through a private bank and had been told there was nothing to report beyond the income. We asked for the constitutional documents of each vehicle rather than the statements, and worked down the structures tier by tier to establish what was a partnership for US purposes and what was not. Two tiers were. The engagement produced a structure chart for each fund with the classification of every tier recorded, and a reporting position for the interests that fell into a category.
Read how this one runsA property contribution tested before the transfer was made
A client intended to move an asset into a joint venture vehicle abroad in exchange for an increased interest. Contributing property is a reporting category of its own, so the consequence would have been fixed by the transfer itself. We looked at the vehicle's classification, at what the contribution would consist of and at what the reporting would require, then set that out before anything moved. The engagement produced a written note of the reporting that would follow, and a list of the figures and documents to capture at the point of transfer rather than reconstruct later.
Read how this one runsControl established for a family joint venture abroad
Three relatives held a business vehicle abroad between them, with interests that had shifted over the years as one of them funded expansion. Whether any of them controlled it decided which of them reported what, and on which schedules. The work was to read the constitutional documents and the funding history, establish each person's interest at each year end, and record how the interests had changed. The engagement produced an interest history for the vehicle and a filing position for each US person in it, with the reason for the category chosen written alongside.
Read how this one runsUS basis allocations built for a first partnership filing
A US partner in a foreign professional vehicle had its local accounts and nothing else. The schedules needed income, allocations and capital figures on a US basis, and the vehicle had never computed them that way for anyone. The work was to obtain the underlying ledgers, restate the result, allocate it under the terms of the partnership agreement rather than the local convention, and reconcile the answer back to what the local accounts showed. The engagement produced the first filing and a restatement schedule the following years were prepared from.
Read how this one runsA disposal year reported after an interest was sold
A client sold an interest in a foreign vehicle and assumed the reporting ended with the sale. Disposing of a reportable interest is itself a category, so the year of exit was the one that needed most work. Because the request went out after completion, the figures had to be assembled from the sale documents, the last set of local accounts and the partner's own capital record. The engagement produced the filing for the disposal year and a memorandum of how the closing position was arrived at, given what the vehicle would provide.
Read how this one runsA local company that turned out to be a partnership
A client described a business he part owned abroad as a company, and his local filings used that language throughout. The vehicle's characteristics put it in the partnership category for US purposes, which changed both what had to be reported and which schedules applied. We set the classification out from the constitutional documents, then reviewed the years already filed on the other assumption. The engagement produced a classification position, a corrected reporting basis going forward and a list of the earlier years that needed revisiting.
Read how this one runsInterest and Penalties Put to a Relief Application
Relief is discretionary and is decided on the circumstances that caused the delay, evidenced year by year. The application is built from the same chronology the filings rest on, so the two cannot contradict each other.
Read how this one runsA Company Abroad Owned by a US Person
A business incorporated where the owner lives is a foreign corporation to the IRS, with a reporting package of its own and schedules that need local accounts restated. Classification comes first, because it decides what is reportable and when profits are taxed.
Read how this one runsAll case studies — every published engagement in one place.
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Strategy and compliance for income, assets and families spread across borders.
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Working from anywhere doesn't mean taxed nowhere: residency defaults, employer payroll exposure and treaty relief decide where income actually lands.
Working from another country does not by itself end tax residence in the one you left, and it can start one where you are sitting. Day counts, ties, the employer's own exposure and the treaty tie-breaker all point at the same question, and the year you move is the year it has to be answered on paper.
- Residency analysis before moving
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- Governance & substance
Form 8865: further questions
Often, yes. Much of what other countries treat as an ordinary business vehicle is a partnership for US purposes, and the local name is a poor guide. A professional firm's structure, a property holding vehicle, an offshore fund tier and a two-party joint venture can all fall into this category. The classification has to be worked out from the legal characteristics of the vehicle rather than assumed from its title, and it is worth doing before any money moves, because the reporting that follows can depend on events at the point of entry.
Contributing property is a category of its own. The obligation attaches to the contribution itself, which means it can arise in a year with no income, no distribution and no change in control, and on a holding far below anything that looks like a controlling stake. In practice this is the one people miss, because the event that triggered it felt like a funding step rather than a transaction. It is also the reason a contribution is worth looking at before it is made rather than after, when the reporting consequence is already fixed.
It can, and the answer usually sits inside the fund's structure rather than at the top of it. A fund is often a stack of vehicles, and one or more tiers may be partnerships for US purposes even where the investor holds what is described simply as a fund interest. The fund's own reporting is prepared for its general investor base and may not tell a US holder what those tiers are in US terms. Working out what is actually held, tier by tier, is the first step, and it usually needs the constitutional documents rather than a statement.
Yes, where the facts put you in a reporting category. The obligation is decided by control, contributions and dispositions rather than by whether there is tax to pay, so a loss year is reported like any other. The work is not lighter either. The schedules ask for income, allocations and balances computed on a US basis, and a foreign partnership has no reason to have prepared any of that. A local set of accounts showing a loss is the starting point for the exercise rather than the end of it.
The year of the disposal is generally a reporting year in its own right, because disposing of a reportable interest is one of the categories. So the last year is often the one that most needs attention, not the one that can be skipped. It also tends to be the hardest to assemble, since the vehicle has less reason to answer a former partner's questions. Anyone planning an exit is far better placed asking for the figures while still a partner than requesting them afterwards.
It can. One employee working from home in another country may be enough where the arrangement gives the company a fixed place at its disposal, or where that person habitually concludes contracts. Seniority and function matter more than headcount: a salesperson closing deals is a far greater risk than a developer. The exposure is corporate tax and payroll registration in that country, which is why it is worth testing before the hire rather than after. See PE risk review.
Yes, and it lands harder on them. An individual US shareholder of a controlled foreign corporation has the same inclusion a corporate shareholder does, but without an election gets neither the corporate-level deduction nor credit for the foreign corporate tax already paid — so foreign profit can be taxed at individual rates with no relief for tax the company paid abroad. An election to be taxed as though through a domestic corporation is usually the first thing to model. See Form 5471 and CFCs.



