Owning a US LLC does not automatically make you liable for US income tax, but it does not exempt you from US filings either. The tax result depends on the type of income and whether the business is "engaged in a US trade or business". This article gives the framework; your situation may differ, so confirm with an adviser.
How a single-member LLC is treated
A single-member LLC owned by a non-US person is normally a disregarded entity for income tax. Its income is treated as the owner's, so US tax applies according to the owner's non-resident status and the nature of the income. For Form 5472 purposes, however, the LLC is treated as a domestic corporation. That is why the filing exists even when no tax is due.
Two main income categories for non-residents
1. Effectively connected income (ECI)
Income from a US trade or business is taxed on a net basis at graduated rates, on Form 1040-NR for individuals or on a corporate return for a corporation. Performing services in the United States, or operating a business with a US office, employees or inventory, commonly creates a US trade or business. Services performed by a non-resident outside the US are generally treated as foreign-source.
2. Fixed, determinable, annual or periodical income (FDAP)
Passive US-source income such as interest, dividends, royalties and rents can be subject to a flat 30% withholding tax unless a tax treaty or an exemption reduces the rate. Treaty benefits usually require forms such as W-8BEN and, in some cases, an ITIN.
Typical scenarios
| Scenario | Likely US income tax result (general guide) |
|---|---|
| Foreign owner provides online services from abroad to customers anywhere | Often no US income tax on the owner, but annual information filings still apply |
| Foreign owner sells goods from US-held inventory to US customers | Likely a US trade or business, so US tax on net profit |
| Foreign owner or staff perform services while physically in the US | That income is generally US-source and taxable |
| LLC earns royalties or interest from US payers | Potential 30% withholding, reduced by treaty if eligible |
These are simplified. Tax treaties, the nature of the services, the owner's residence and many other factors change the outcome.
Other taxes to consider
- State income and franchise tax: depends on where the LLC operates, not where it was formed.
- Sales tax: online sellers can owe it based on economic nexus in states where they sell.
- Payroll tax: applies if you employ people working in the US.
- Taxes in your home country: you may owe tax there on worldwide income, with credits or exemptions depending on local rules and treaties.
Filings that apply even with no tax due
- Form 5472 with pro forma Form 1120 for foreign-owned single-member LLCs with reportable transactions
- State annual reports and fees
- Possibly Form 1040-NR if you have US-source income or want to claim treaty benefits or a refund
- FBAR if the LLC has foreign accounts above the threshold. See our FBAR guide.
Next steps
Map your income by type and location, keep clean records and review your position each year. Our team can help through US tax preparation and cross-border compliance.
Frequently asked questions
Does a non-resident pay US tax on a US LLC?
It depends. Income connected to a US trade or business is taxable, and some US-source passive income is subject to withholding. Foreign-source income from services performed outside the US is generally not taxed by the US.
Do I still need to file if my LLC has no US income?
Often yes. A foreign-owned single-member LLC with reportable transactions must file Form 5472 with a pro forma Form 1120, and state reports are usually required.
Can a tax treaty reduce US withholding?
Yes, if your country has a treaty with the US and you qualify. You typically claim treaty benefits using a Form W-8 and sometimes need an ITIN.
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