Does Working Temporarily From the US Create Tax Problems for a Foreign-Owned LLC?

Napoleon

Sep 10, 2026 — 8 min read

Yes. A foreign-owned U.S. LLC can face additional U.S. tax and compliance issues when its nonresident owner temporarily performs work from inside the United States. The important point is that the number of days you spend in the U.S. is not the only issue. What you do while you are there can matter just as much.

For a nonresident alien, personal services physically performed in the United States are generally treated as U.S.-source income, and the IRS generally considers compensation for personal services performed in the U.S. to be income effectively connected with a U.S. trade or business.

That means a founder who normally works from Nigeria, India, Brazil, or another country can create a very different U.S. tax situation by spending part of the year working from a U.S. location.

Does a Short U.S. Visit Automatically Create U.S. Tax?

Not necessarily. A short business trip does not automatically mean every dollar earned by the business becomes taxable in the United States. But you should distinguish between:

Visiting the U.S. without performing income-producing work
Performing services while physically in the U.S.
Operating a business from the U.S.
Becoming a U.S. tax resident
Qualifying for an exemption under a tax treaty

These are separate questions. For example, attending a conference for several days is different from spending several weeks in Miami actively running your consulting business and delivering client work from there.

Why Working From the U.S. Can Change the Analysis

For personal services, the IRS generally uses where the services are physically performed to determine the source of the income. So imagine a foreign founder who normally works from Lagos.

For most of the year, she performs consulting services from Nigeria for U.S. customers. That income is generally foreign-source service income because the services are performed outside the United States. She then spends 30 days in California and continues performing the same client work from a rented apartment. Those 30 days are different.

The fact that the client, LLC, and invoices remain unchanged does not erase the fact that some services were physically performed in the United States. The IRS generally treats personal services performed in the U.S. by a nonresident alien as income effectively connected with a U.S. trade or business.

The 183-Day Rule Is Often Misunderstood

One of the biggest mistakes foreign founders make is thinking: "I'm in America for fewer than 183 days, so I don't owe U.S. tax." That is not a universal rule. The 183-day figure is particularly associated with the substantial presence test, which determines whether an individual becomes a U.S. resident for tax purposes. The test generally looks at 31 days in the current year plus a weighted 183-day total over the current year and the preceding two years.

But a person can remain a nonresident alien and still have U.S.-source income and U.S. tax obligations. In other words: Not becoming a U.S. tax resident does not mean you can work in the U.S. tax-free.

Tax Residency and U.S.-Source Service Income Are Different

Consider two separate questions.

Question 1: Am I a U.S. tax resident?

This can depend on the substantial presence test, green-card rules, treaty residency provisions, and other exceptions.

Question 2: Did I perform services in the United States?

You can answer "no" to the first question and "yes" to the second. That combination is common among international entrepreneurs who visit the United States for business. The result can be U.S.-source service income even though the founder remains a nonresident alien.

Can a Tax Treaty Protect You?

Possibly. This is one of the most important exceptions for foreign founders who temporarily work from the United States. The United States has income tax treaties with numerous countries, and many treaties contain provisions that can exempt some personal-services income when a resident of the treaty country temporarily works in the United States and satisfies specific conditions. The conditions vary substantially. Depending on the treaty, an independent contractor may need to satisfy requirements involving:

Number of days present in the United States
Whether the individual has a fixed base in the U.S.
Whether the business has a permanent establishment
Where the income is paid
Who bears the compensation
The individual's treaty residence

The IRS specifically warns that treaty rules differ by country. Some treaties use an independent-personal-services article, while others treat the income under a business-profits article. So "I was only there for 30 days" is not enough to establish an exemption.

Example: A Founder Working From the U.S. for 45 Days

Suppose Daniel is a resident of a country with an applicable U.S. tax treaty. He owns a foreign-owned U.S. LLC and normally performs consulting work from his home country. During the year, he spends 45 days in the United States and performs client services during that trip. Several questions now become relevant:

How many days was he physically present?
Which treaty applies?
Does the treaty have an independent personal services or business-profits article?
Does he have a U.S. fixed base or permanent establishment?
Is the income attributable to U.S. activities?
What documentation is required to claim treaty treatment? Depending on the treaty and facts, the income may qualify for an exemption. But that conclusion must come from the specific treaty, not from the number of days alone.

What If You Do Not Have a U.S. Tax Treaty?

This can be much more significant. Not every country has a comprehensive income-tax treaty with the United States. Without an applicable treaty provision, you generally have to analyze the Internal Revenue Code rules directly.

The IRS states that a foreign person generally engaged in a U.S. trade or business has U.S. tax exposure on income effectively connected with that business. For independent personal services, performing services in the U.S. can therefore create U.S. tax obligations even when the founder remains a nonresident.

What Happens to the Income?

If income is ECI, it is generally taxed differently from non-ECI FDAP income. The IRS explains that ECI is generally taxed on a net basis, meaning allowable deductions can be taken into account, with graduated rates generally applying to individuals.

By contrast, certain U.S.-source FDAP income that is not effectively connected with a U.S. trade or business is generally subject to 30% tax on the gross amount, unless a treaty provides a lower rate or exemption. That distinction matters when calculating the actual tax consequences of temporarily working in America.

Withholding Can Become an Issue Too

If a foreign founder performs services in the United States, a U.S. client may have withholding obligations. The IRS states that U.S.-source nonemployee compensation paid to a nonresident alien is generally reportable on Form 1042-S, with withholding generally at 30% unless a lower treaty rate or exemption applies.

Where treaty relief is available for independent personal services, Form 8233 may be used in appropriate circumstances to claim an exemption from withholding. This is another reason not to wait until tax season to analyze the situation.

Keep Track of Every U.S. Workday

International founders should maintain a clear record of their physical location when working across borders. Keep:

Passport and travel records
Entry and departure dates
Work calendars
Client contracts
Invoices
Time sheets
Records of services performed in each country
U.S. accommodation records
Copies of Forms W-8 or 8233
Relevant tax filings. This documentation can become important if you need to demonstrate that most services were performed outside the United States or establish eligibility for a treaty position.

What About the LLC Itself?

The LLC's formation state does not tell the whole story. A Delaware or Wyoming LLC owned by a nonresident can have a very different tax result depending on whether it is:

A single-member disregarded entity
A partnership
Taxed as a corporation
Operating through U.S. employees
Using U.S. offices or other business facilities
Conducting business directly through its foreign owner

A foreign-owned disregarded LLC generally requires looking through the entity to the owner for federal income-tax purposes. So if the owner personally travels to the U.S. and performs the services, the fact that invoices are issued by the LLC does not necessarily prevent those activities from creating U.S. tax consequences.

A Practical Checklist Before Working From the U.S.

Before turning your U.S. trip into a working trip, ask:

1. How many days will I physically be in the U.S.?

Track actual days, not just nights or hotel stays.

2. Will I perform income-producing services?

Working remotely from your hotel or Airbnb can still be relevant.

3. Does my country have a U.S. tax treaty?

If so, read the provisions covering independent services or business profits.

4. Will I have a fixed base or permanent establishment?

This can be particularly important under treaty analysis.

5. Will I become a U.S. tax resident?

Check the substantial presence test rather than relying on a simple annual 183-day assumption.

6. Will my client need to withhold?

Determine the applicable withholding rules before payment is made.

7. Do I need to file Form 1040-NR?

A U.S. filing requirement can arise even when the founder does not become a U.S. resident.

Frequently Asked Questions

Can I work from the U.S. for a few weeks without creating tax problems?

Possibly. A short stay does not automatically create U.S. income tax liability, but services performed in the U.S. can create U.S.-source income and potentially ECI. A treaty may provide an exemption if its requirements are satisfied.

Does working fewer than 183 days mean I owe no U.S. tax?

No. The 183-day rule is commonly associated with the substantial presence test, not a blanket exemption from tax on U.S.-performed services.

Can a tax treaty exempt temporary U.S. work?

Yes, potentially. Many treaties contain provisions that can exempt certain personal-services income when specific conditions are met. The requirements differ by treaty.

Does my U.S. LLC make temporary work in America taxable?

The LLC itself does not automatically determine the result. Your activities, entity classification, income, physical work location, and any applicable treaty all matter.

What if I work remotely from a U.S. hotel?

The fact that you are working from a hotel does not make the activity irrelevant. If you are physically performing services in the United States, the U.S. sourcing rules can apply.

Do I need Form 8233?

Possibly, if you are a nonresident alien claiming a treaty exemption from withholding on compensation for independent personal services. Form 8233 has specific eligibility and documentation requirements.

Can I still be a nonresident while owing U.S. tax?

Yes. U.S. tax residency and U.S. tax liability are different concepts. A nonresident alien can have U.S.-source income or ECI without becoming a U.S. resident.

Does a U.S. bank account change the analysis?

No. The bank account's location does not determine where personal services were performed. The physical location of the work remains a key factor.

Final Takeaway

Temporarily working from the United States can create tax problems for a foreign-owned LLC—but it does not automatically do so. The critical mistake is treating the 183-day substantial presence test as a universal "tax-free under 183 days" rule. It is not. A person can remain a nonresident alien while still earning U.S.-source income from services performed in America.

At the same time, an applicable tax treaty may protect certain temporary U.S. activities if its specific requirements are satisfied. For a foreign founder, the safest approach is to track every U.S. workday, identify exactly what work was performed, determine whether a treaty applies, and review the withholding and filing consequences before the trip becomes a tax problem.

Foundeck, an AI-powered U.S. company formation and management platform for global founders, can help with the administrative side of maintaining a U.S. LLC, but cross-border tax treatment depends on the founder's individual circumstances and should be reviewed with a qualified international tax professional when the stakes are significant.