What a Foreign-Owned US Company Owes the IRS

A foreign-owned US LLC often owes little or no US income tax, yet it almost always still owes filings. The most important are Form 5472 with a pro forma 1120 to the IRS, plus an annual report and any franchise tax to its state. The duty to file is separate from the duty to pay, and that distinction is where most foreign owners get caught.

Owning a company in another country can feel like standing in a room where everyone else knows the rules. The good news is that the rules are finite and predictable. Once you understand what the United States asks of a non-resident owner, the obligations become a short, manageable calendar rather than a source of worry. Here is the whole picture, in plain terms.

01Do You Owe US Income Tax at All?

Often, no. A non-resident who owns a US LLC pays US federal income tax only on income that is effectively connected to a US trade or business. A consulting or software business run entirely from abroad, with no US staff or office, frequently has no US income tax to pay. Income tax is driven by where and how you earn, not by the simple fact that you own a US company.

This is also where two opposite myths live. One says a US LLC never pays tax; the other says it always does. Both are wrong. The honest answer depends on the nature of your activity, whether your country has a tax treaty with the United States, and how income flows through the entity. It is a question worth answering precisely with an advisor rather than assuming, because the cost of guessing in either direction is real.

02Why Is Filing Separate From Paying?

Because the IRS wants visibility even when no tax is due. A foreign-owned US LLC can owe zero income tax and still be required to file, on time, every year. Skipping a return because there was nothing to pay is the single most common and most expensive mistake non-resident owners make. The forms below are obligations of existence, not of profit.

03What Is Form 5472, and Why Does It Carry a $25,000 Penalty?

Form 5472 is an information return that discloses transactions between your US company and you, its foreign owner. A foreign-owned single-member LLC files it together with a pro forma 1120. It is required whenever a reportable transaction occurs, and the initial capital you put into the company counts as one, so the form is due even in a year with no revenue. A missed or incomplete filing carries a penalty of $25,000.

That figure is not a typo and it is not discretionary in the way many owners hope. It is precisely why this filing sits at the center of compliance for anyone abroad. Handled properly, it is routine paperwork. Handled carelessly, it is the most painful letter the IRS sends to a small company.

04What Does Your State Expect Each Year?

Separate from the IRS, the state where you formed the company expects to hear from you annually. Most states require an annual report to keep the company in good standing, and several charge a franchise tax simply for the privilege of existing there. California's minimum is $800 a year regardless of revenue; Delaware bills its LLCs a flat franchise tax each June. A registered agent in that state is required at all times to receive these notices on your behalf.

• Annual report: confirms your company's details and keeps it in good standing.
• Franchise tax: a flat state fee owed even with no income, in states that levy it.
• Registered agent: a required in-state contact, renewed yearly, that never lapses while the company is open.

05When Is Everything Due?

The federal return, Form 5472 with the pro forma 1120, is due April 15, and a timely Form 7004 extends the filing deadline to October 15. An extension moves the paperwork, not the payment: any tax owed is still due in April. State dates vary, with Delaware's LLC franchise tax falling on June 1 and other states scattered across the year. If your company filed an extension this year, October 15 is the hard deadline now in view, and it is the one not to drift past.

1. 01Confirm whether you have US-connected income to report, with tax services if it is not obvious.
2. 02File Form 5472 and the pro forma 1120 by April 15, or extend to October 15 with Form 7004.
3. 03File your state annual report and pay any franchise tax by its date.
4. 04Keep your registered agent and records current so nothing arrives unanswered.

06What Happens If You Get It Wrong?

Penalties compound and good standing erodes. A late or missing Form 5472 is $25,000. Ignore the state long enough and it administratively dissolves the company, which is a far messier and costlier path back than simply filing on time. None of this is meant to alarm you. It is meant to show that the downside is entirely avoidable with a calendar and a steady hand.

07How Prodezk Handles This For You

For 24 years we have carried this calendar for founders who would rather build their business than track IRS deadlines from another time zone. We confirm what you actually owe, prepare and file the federal and state returns, keep your company in good standing, and tell you in plain language what each date means before it arrives. You are never left to interpret a form alone.

If you own a US company from abroad and want certainty about what you owe and when, speak with a Prodezk advisor. We will review your situation and set out your obligations clearly, so the only thing left for you to do is decide to hand them to us.