Will you owe US tax? The real question is not your nationality

The sentence that needs correcting

You will read endlessly that "a non-resident-owned LLC is tax free in the US". That is not an outright lie, but it is incomplete enough to get people into trouble.

The accurate version: federal income tax may not apply if the company has no income effectively connected with a US trade or business — and the duty to file remains in every case.

The concept that decides it

The rule is not about your nationality or where the company was formed. It is about where the business is actually carried on. The technical term is effectively connected income.

In plain terms: is work being done inside the United States that generates this income? Not "is my customer American?" but "where did I do the work?"

Examples that make it concrete

• A developer in Amman working remotely for US clients, with no office, employee or dependent agent inside the US → the work happens outside it. Usually no effectively connected income.
• An online store selling digital products from abroad to buyers worldwide → usually the same.
• An Amazon FBA seller with inventory in US warehouses → the picture changes. Inventory and fulfilment inside the country weigh toward a US trade or business, and this case deserves an accountant's opinion rather than an article.
• Anyone with an office, an employee or a full-time contractor inside the US → a clear presence.

Notice that the customer's nationality decided none of these. It is the single most common misunderstanding in this area.

Filing is required even with no tax

This point costs people more than the tax does. Even if you land on zero tax, a foreign owner of a single-member LLC must still file Form 5472 with a pro-forma 1120.

The penalty for not filing starts at $25,000 and has nothing to do with profit or loss. A "tax free" company can end up paying a penalty far larger than the tax it avoided.

State tax is a separate question

Everything above is federal. Some states levy their own income tax, and whether it reaches you follows nexus with that state — not the fact of forming there. A state with no income tax simplifies things; it does not touch the federal position.

And sales tax is a third one

Sales tax is not income tax and does not follow the same logic. It concerns selling goods to buyers in a particular state once you cross thresholds each state sets for itself. Amazon sellers in particular need to understand it on its own terms.

What "US presence" means in practice

The legal vocabulary is vague, so here it is in concrete terms. These weigh toward a US trade or business:

• An office or workspace in the company's name inside the US — not a mailbox and not the registered agent's address.
• An employee or full-time contractor working from inside the country for you.
• A dependent agent regularly concluding contracts in your name there.
• Inventory you own sitting in US warehouses.

These, on their own, do not create one:

• The registered agent and mailing address — a registration requirement, not activity.
• A US bank account.
• Having American customers.
• Hosting your website on US servers.

The gap between those two lists is the gap between "a company registered in America" and "a company operating in America". The first is an administrative status; the second is a tax one.

The mistakes that actually cost money

• Assuming the exemption without checking. People read one article, act on it for years, then find their case was the exception.
• Confusing not paying with not filing. The most expensive error in this whole area, explained above.
• Ignoring tax at home. The whole decision gets built on the US side alone, and the bill arrives from the other direction.
• Keeping no books. Even with no tax to pay, you need documented figures to file — and reconstructing a year of bank statements in April is not an experience worth repeating.

What about your own country?

This is the part people forget. No US tax does not mean no tax at all — your country of residence may tax your income from a foreign company, and any double-taxation treaty it has with the United States changes the arithmetic.

The sound rule: work out your tax at two levels, not one.

A caution

This is general information for educational purposes, not tax advice. Your position follows the specifics of your situation and your country of residence, and a decision made on the strength of an article can cost many times what an accountant would have.