A US LLC is one of the most common company types for non-US founders who sell online. It can be formed remotely in a day, it opens doors to US payment processors and marketplaces, and US clients recognize it. For a founder who lives outside the United States, it can also be tax-transparent in the US, which leads to a popular but incomplete claim that a US LLC is "tax-free."
The reality depends on two systems at once. The US decides whether the LLC or its owner owes US tax and which forms must be filed. The founder's country of residence decides how it taxes the LLC's profits and whether it sees the LLC as a company or as a transparent vehicle. A setup that works well in one place can create problems in the other.
This guide covers what non-US founders often want to understand before forming a US LLC: classification, US tax exposure, mandatory filings and their penalties, state costs, banking and the home-country questions. It describes general rules as of October 2026 and is not a recommendation to form any entity.
Key takeaways
- By default, the IRS treats a single-member LLC as disregarded and a multi-member LLC as a partnership, unless the LLC elects to be taxed as a corporation.
- A foreign-owned single-member LLC must file Form 5472 with a pro forma Form 1120 each year, even with no US income. The penalty for not filing starts at $25,000.
- US income tax depends mainly on whether the business has income effectively connected with a US trade or business, not on where the LLC is formed.
- US-formed companies no longer have to file beneficial ownership reports with FinCEN, but state fees, registered agents and annual reports still apply.
- The founder's country of residence may tax the LLC's profits, and some countries treat a US LLC as a company rather than as transparent.
Why non-US founders form US LLCs
Founders usually cite practical reasons rather than tax:
- Access to US payment processors, marketplaces and app stores that work best with a US entity.
- Credibility with US clients and investors.
- Simple formation, no minimum capital and limited liability under state law.
- A US bank account and US dollar invoicing.
A US LLC is a state-law entity. It is formed by filing with a state, such as Delaware, Wyoming or New Mexico, and it must keep a registered agent with a physical address in that state. Federal tax treatment is a separate question.
How the IRS classifies an LLC
The IRS does not have a separate tax category for LLCs. According to the IRS page on limited liability companies, a domestic LLC with at least two members is classified as a partnership by default, and an LLC with one member is treated as disregarded from its owner. Either type can file Form 8832 to be taxed as a corporation instead.
| Structure | Default US tax treatment | Main federal return |
|---|---|---|
| Single-member LLC, foreign owner | Disregarded entity, with special reporting | Pro forma Form 1120 with Form 5472 |
| Multi-member LLC | Partnership | Form 1065, with partner schedules |
| LLC electing corporate status | C corporation | Form 1120, with corporate income tax at the entity level |
For a disregarded entity, the LLC's income is treated as the owner's income for US income tax purposes. That is why a foreign owner of a single-member LLC may owe no US income tax in some situations, and why the owner, not the LLC, is the starting point for the analysis.
When US income tax applies
For a foreign owner of a transparent LLC, US tax depends on the kind of income and where the activity takes place.
Effectively connected income
The IRS explains that a foreign person has effectively connected income (ECI) when they are engaged in a US trade or business during the year and earn US-source income connected to it. ECI is taxed after deductions at the same graduated rates that apply to US citizens and residents. Performing services in the US on a regular basis, having US employees or dependent agents, or operating from a US office can create a US trade or business.
FDAP income
Passive US-source income such as dividends, interest, rents and royalties that is not connected with a US business is called FDAP income. The IRS states that FDAP income is taxed at a flat 30% of the gross amount, unless a tax treaty reduces the rate.
Activity outside the US
A founder who lives abroad, performs all services abroad and has no US office, staff or agents may have no ECI. In that case, a disregarded LLC can have no US income tax to pay, although the filing duties below still apply. This is the scenario behind the "tax-free LLC" claims, and it depends heavily on facts: inventory in US warehouses, US-based contractors acting for the business or regular work trips to the US can all change the outcome.
Multi-member LLCs with foreign partners face additional rules, including withholding by the partnership on effectively connected income allocated to foreign partners. State income taxes are a further layer and vary by state.
Form 5472 and the pro forma 1120
The filing that catches most foreign owners is Form 5472. Under rules that apply to tax years beginning on or after January 1, 2017, a foreign-owned US disregarded entity is treated as a corporation for this reporting purpose. According to the Form 5472 instructions:
- The LLC files a pro forma Form 1120 with only basic details completed, and attaches Form 5472.
- It reports transactions with its foreign owner and related parties, including money the owner puts into the LLC and money taken out.
- The form is due by the due date of the Form 1120, including extensions, which for a calendar-year entity is normally April 15. An extension is requested on Form 7004.
- A foreign-owned disregarded entity cannot file Form 5472 electronically. It must be faxed or mailed.
- The penalty for failing to file on time is $25,000, with a further $25,000 if the failure continues more than 90 days after the IRS sends a notice.
The duty applies even in a year with no US income tax due, which is why many foreign owners use a US accountant who handles these filings.
EIN, registered agent, state fees and BOI
Getting an EIN
An LLC needs an Employer Identification Number to file Form 5472, open a bank account and work with most payment processors. The IRS EIN page explains that the online application requires the responsible party's SSN or ITIN and a principal place of business in the US. Founders without these apply by phone, fax or mail, using Form SS-4.
State costs
Each state sets its own fees and annual duties. Delaware, for example, charges LLCs an annual tax of $400, due by June 1, with a $200 penalty plus interest for late payment, according to the Delaware Division of Corporations. Other states have annual reports, franchise taxes or no annual filing at all, and every state requires a registered agent.
Beneficial ownership reporting
The federal Corporate Transparency Act originally required most small US companies to report their beneficial owners. FinCEN's BOI page states that, after a March 2025 interim rule and a final rule effective August 14, 2026, US companies are exempt. Foreign companies registered to do business in the US were still required to report under the 2025 interim rule. Banks still collect ownership information under their own customer due diligence rules.
Banking and payments
Banks must identify every customer and verify an address and an identification number before opening an account. For non-US persons, a passport number can replace a US taxpayer number, but many banks also want to see the owner in person or have a US address on file. Fintech platforms and payment firms often have simpler onboarding for foreign-owned LLCs, with their own limits and risk policies.
When a US payer asks for tax forms, the foreign owner of a disregarded LLC generally provides a form for themselves, such as Form W-8BEN, because the LLC is not treated as the beneficial owner. Our guides to the payment stack for online entrepreneurs and to bank accounts for digital nomads cover the practical side.
Sales tax is a separate issue. US states can require out-of-state sellers to collect sales tax once their sales into the state pass economic thresholds, and sellers into Europe face similar rules under EU VAT and the One-Stop Shop.
The home-country side
For most founders, the bigger tax question is not the US but the country where they live. Points that commonly come up with advisers include:
- Personal taxation of LLC profits. Many countries tax residents on worldwide income, so the profits of a transparent LLC may be taxed at home as the owner's business income.
- Classification. Some countries treat a US LLC as transparent and others treat it as a company. A company classification can bring controlled foreign company rules, dividend taxation and treaty complications.
- Management and control. A company managed day to day from another country may be treated as resident there, or as having a permanent establishment there.
- Reporting. Ownership of a foreign entity and foreign bank accounts often needs to be disclosed on the founder's home tax return.
These questions are part of the wider decision on where to base an online business. They depend on the founder's residence, which is why the same LLC can be simple for one person and costly for another.
Frequently asked questions
Does a non-resident owner of a US LLC pay US tax?
It depends on the income. A single-member LLC owned by a non-resident is disregarded for US income tax, so the owner pays US tax only on effectively connected income or US-source passive income. A founder with no US trade or business may owe no US income tax, but still has filing duties.
What is the penalty for not filing Form 5472?
The penalty is $25,000 for each failure to file on time, with an additional $25,000 if the failure continues more than 90 days after the IRS sends a notice.
Can a foreigner get an EIN without an SSN or ITIN?
Yes. The online tool is not available in that case, but the IRS accepts EIN applications by phone, fax or mail using Form SS-4.
Do US LLCs still need to file BOI reports?
No. Following FinCEN's March 2025 interim rule and its final rule effective August 14, 2026, companies created in the United States are exempt from beneficial ownership reporting. Foreign companies registered to do business in the US are treated differently.
Is a US LLC tax-free for non-US residents?
Not in general. Even when no US income tax is due, the owner's country of residence may tax the profits, and US filing duties still apply. The overall result depends on both countries' rules.
Important: This article is general information, not tax, legal or financial advice. Rules change often and depend on your personal circumstances. Speak with a qualified professional in each relevant country before you act.