The American LLC is a highly attractive tool for digital entrepreneurs, consultants, creatives and investors outside the US. Especially when it is treated as a "disregarded entity", meaning it is passed through to its owner for tax purposes, it can be an extremely lean, anonymous and, under certain circumstances, completely tax-free structure.
But be careful: if you do not understand the US tax concepts "ETBUS" (Engaged in Trade or Business in the United States) and "ECI" (Effectively Connected Income), you risk triggering US tax liability without noticing, with all the consequences: a filing obligation, bookkeeping, back taxes, penalties and stress with the IRS.
In this article you will learn:
- What ETBUS and ECI mean
- Why these concepts are decisive for foreign owners of an LLC
- How you create ETBUS/ECI, or avoid it
- What the typical mistakes are (with plenty of practical examples)
- And what you should actually do to run your LLC genuinely tax-free
1. The basics: when does a US LLC have to pay tax in the US?
The US is not a classic zero-tax country, quite the opposite. The American tax system is complex, rigorously enforced and global in its reach.
Even so, under certain conditions a US LLC can be tax-free. But only if all of the following conditions are met:
- The LLC has only one member (single-member LLC),
- No US member is involved (no US citizen, no green card holder, no US person),
- The LLC has no tax home in the US (for example through administration or management from the US),
- The LLC is not "engaged in trade or business in the United States" (ETBUS),
- And no "effectively connected income" (ECI) with the US arises from it.
Important: Tax pass-through as a disregarded entity is only possible for a single-member LLC*. With two or more members, the LLC is automatically classified as a* partnership*, with additional tax returns, K-1 forms and often considerably more work. If you work with partners, check carefully whether an LLC still makes sense at all, or whether another structure (for example a US LP or separate holdings) is a better fit.*
2. What exactly is ETBUS?
ETBUS stands for:
Engaged in Trade or Business in the United States = business activity carried on within the territory of the US
That means your LLC is ETBUS if it is actively operating in the US, for example through:
- staff in the US (for example employed developers, assistants, support staff)
- physical presence in the US (for example an office, co-working space or workshop)
- active management carried out from within the US
- services physically performed in the US
What matters is not where your clients are, but where you yourself are working.
Example 1: You run an online agency in Bali. All your clients are in California. But you have no office, no people and no presence in the US. No ETBUS.
Example 2: You live in Mexico and run a coaching business. You have a virtual assistant in Florida who coordinates appointments for you. Probably ETBUS.
Example 3: You are based in Dubai but travel to the US regularly and meet clients there in person. Borderline case. If regular: ETBUS.
Example 4: You run an e-commerce shop through Amazon FBA with inventory in US warehouses. You have no employees, no office and no goods handling of your own; Amazon takes care of everything. No ETBUS. Amazon counts as an independent service provider, not as your permanent establishment.
(Note: only if you also employ your own staff in the US or become actively involved on the ground yourself, for example with your own warehouse, returns service or customer service, could ETBUS exist.)
As soon as ETBUS exists, the next question follows automatically:
3. What is ECI?
ECI = Effectively Connected Income
Once your LLC is ETBUS, the IRS checks whether your LLC's income is "effectively connected" with that US business activity. If so, that income is subject to US federal tax (21% corporate tax for a corporation, individual taxation for partnerships).
So ECI means: the US gets a share.
Important: ECI follows ETBUS. You cannot have ECI unless you first have ETBUS. In other words: avoid ETBUS and you avoid ECI.
4. Typical examples of ETBUS and ECI (or not)
Example scenarios:
- Digital consulting from Georgia (the Caucasus), US clients: no ETBUS, no ECI, so tax-free
- YouTuber living in Cyprus, using a US LLC, viewers worldwide: no ETBUS, no ECI, so tax-free
- Amazon FBA with inventory in Texas: no ETBUS and no ECI, so tax-free
- Developer living in the Philippines, using US subcontractors: probably ETBUS and ECI, so taxable
- Dropshipping with a US payment provider, no goods in the US: no ETBUS, so tax-free
- Trading LLC with a US broker, no active business: no ETBUS, but possibly FDAP, so a flat withholding tax (30%, possibly reduced by a tax treaty)
5. What about clients from the US? Does that trigger ETBUS?
No!
The mere fact that your clients come from the US has no tax relevance for ETBUS.
The US does not care where the invoice goes, only where you work.
Example: you are in Thailand developing software for a company in Miami. No ETBUS, no ECI, no US tax.
Exception: if you stay in the US on a lasting basis, even just as a tourist, or employ staff there.
6. How can you avoid ETBUS and ECI?
1. Avoid physical presence in the US
- No offices, co-working spaces or permanent representative offices in the US
- No constant business travel
- No goods in US warehouses
2. No employees or subcontractors in the US
- Use remote workers from other countries
- If you use US-based people: on a project basis only, without being bound by instructions
3. Management outside the US
- You yourself should not live or work in the US
- Administration, control, communication: everything outside the US
7. What happens if I have ETBUS?
If your LLC is treated as ETBUS, you must:
- file a full US tax return (Form 1120 or 1065)
- keep books in USD under US GAAP
- pay tax on the profit
- possibly pay withholding tax on distributions (FDAP)
- possibly comply with CFC rules and substance requirements (depending on your country of residence)
In short: you lose the tax-free status.
8. What about "FDAP"? And how does it fit in?
FDAP = Fixed, Determinable, Annual or Periodical Income
This applies in particular to interest, dividends, licence fees, rental income and royalties from the US.
This income is subject to a flat 30% US withholding tax, even if you have no ETBUS! With a tax treaty, however, you can often reduce it to between 0 and 15 percent.
Example: you receive royalties from a US publisher for a book. FDAP: 30% withholding tax if no W-8BEN has been submitted.
Example: YouTube Premium revenue is classified as a "royalty". That is FDAP too, but it can be reduced to 0% under a tax treaty.
9. Only without ETBUS and ECI does your LLC stay tax-free
The US LLC is a powerful vehicle, but only tax-free if you do not create a permanent establishment in the US.
That means:
- No staff, no goods, no office in the US
- No management from the US
- No services performed on the ground
If you follow these rules, you can use your LLC as a foreign entrepreneur legally, safely and tax-free. The "One Big Beautiful Bill" does not change that either, as our analysis shows.
But: ignorance does not protect you from tax liability. And the IRS does not handle violations gently.
About our firm
ZeroTax LLC is a service of Mount Bonnell Advisors in Austin, Texas.
We specialise in tax-free US structures for international entrepreneurs. We help you set up your LLC so that it genuinely stays tax-free, without nasty surprises. Consultations are held in English.
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