If you live outside the United States and own a Wyoming LLC, the US tax system probably treats you far more gently than you expect. The default outcome for most non-resident operators of online businesses is zero US federal income tax on operating profit, paired with a mandatory information return that has nothing to do with how much you earned. That combination confuses people: they assume zero tax means zero paperwork, or they assume forming a US company drags all their income into the US tax net. Neither is true. The rules turn on what kind of income you have and where the work happens, not on the simple fact that you registered an entity in Cheyenne.
This guide walks the entire framework end to end. It explains the two and only two categories of income the US can reach for a non-resident, how a single-member foreign-owned LLC is classified, which forms are genuinely mandatory, how state and sales tax interact, and where people get tripped up. The aim is to give you enough structure to know whether your situation is the simple zero-tax case or one of the edge cases that warrants a cross-border CPA.
How the US taxes a non-resident at all
The United States does not tax non-residents on worldwide income. It taxes them on US-connected income only, and that income falls into two buckets. The first is income that is effectively connected with a US trade or business, known as ECI, taxed at the same graduated rates a US person would pay. The second is US-source fixed, determinable, annual, or periodical income, known as FDAP, which is mostly passive income such as dividends, interest, royalties, and rents, taxed at a flat 30 percent withheld at source unless a treaty in force lowers the rate.
Everything in non-resident taxation flows from sorting your income into those two buckets or out of them entirely. If your income is neither ECI nor US-source FDAP, the US has no claim on it. This is why a developer in Lahore or a designer in Lagos running a Wyoming LLC frequently owes nothing: their service income is sourced where the work is performed, which is abroad, so it is foreign-source and outside both buckets.
The phrase that matters most is US trade or business. There is no single bright-line statutory definition, but it generally requires considerable, continuous, and regular business activity inside the United States. Selling software to American customers from your laptop in another country does not, by itself, create a US trade or business. Having employees, a fixed office, dependent agents who conclude contracts, or inventory and fulfillment operations physically in the US can. The location of your customers is not the test. The location of your activities is.
The two income buckets in detail
ECI is income connected to actually doing business in the US. Once you have a US trade or business, the income attributable to it is ECI and is taxed on a net basis at graduated rates, the same brackets that apply to US individuals, after deductions. You report it on Form 1040-NR. The advantage of ECI versus FDAP is that ECI is taxed on profit, not gross receipts, so legitimate business expenses reduce the bill. The disadvantage is that it pulls you into the US filing system as an individual.
FDAP is the passive bucket. It is generally US-source and taxed at a flat 30 percent on the gross amount, with no deductions, collected through withholding by the US payer before the money ever reaches you. Common FDAP items for non-residents include dividends from US corporations, interest (though portfolio interest and most bank deposit interest are statutorily exempt), royalties for the use of property in the US, and rents. The 30 percent is a default ceiling, not a floor, and it is reduced only by a tax treaty that is actually in force between the US and your country of residence.
Sourcing rules decide which bucket, if any, applies. For services, income is sourced to where the services are performed. For the sale of inventory you bought and resold, sourcing generally follows where title passes. Royalties are sourced to where the underlying property is used. Interest and dividends are sourced to the residence or place of incorporation of the payer. Because most non-resident online founders sell their own services or software produced abroad, their income is foreign-source and escapes both buckets, which is the structural reason the zero-tax outcome is so common.
How your LLC is classified for tax
A Wyoming LLC is a state-law entity, not a federal tax category. For federal tax, a single-member LLC owned by one foreign person is by default a disregarded entity: the IRS looks through it and treats its income as belonging directly to you. There is no separate corporate-level tax and no LLC tax return in the ordinary sense. The income retains its character and source as if you earned it personally, which is exactly why the ECI and FDAP analysis above applies to you the individual rather than to a separate taxpayer.
A multi-member foreign-owned LLC defaults to a partnership instead. That is a meaningfully different regime: the LLC files Form 1065 and issues Schedule K-1s to each owner, the partnership return is due March 15, and if the partnership has income effectively connected with a US trade or business, it must withhold under Section 1446 and file Forms 8804 and 8805 on each foreign partner's allocable ECI. Each foreign partner then files Form 1040-NR. If you have partners and any US-connected income, the compliance burden is materially heavier than the single-member case, and this is where professional help pays for itself.
An LLC can also elect to be taxed as a corporation by filing Form 8832 (or as an S corporation, though non-residents generally cannot be S-corp shareholders). Most non-residents do not make this election, because corporate taxation introduces a 21 percent entity-level tax and potential branch profits tax without solving any problem the disregarded structure has. Unless a specific reason exists, the default disregarded-entity treatment is the cleaner path. The takeaway: the number of owners, not the Wyoming paperwork, drives your federal classification.
Form 5472: the filing you cannot skip
Here is the part that surprises people who expected zero tax to mean zero filing. A foreign-owned single-member LLC that is a disregarded entity is treated as a domestic corporation solely for the purposes of the Section 6038A reporting rules. That means every year it must file Form 5472 attached to a pro forma Form 1120, reporting reportable transactions between the LLC and its foreign owner or related parties. These transactions include your capital contributions into the LLC and your distributions out of it, plus things like loans, services, and rents between you and the entity.
The 1120 is called pro forma because you are not actually computing corporate tax on it; you complete only the identifying information at the top and attach the 5472. The 5472 is purely informational. It does not by itself create any tax. But the penalty for not filing it, or filing it late or substantially incomplete, is 25,000 dollars under IRC Section 6038A, with additional 25,000 dollar increments if the failure continues after the IRS notifies you. This is a flat penalty unrelated to your income, which is why even a founder who earned a few thousand dollars must take it seriously.
The deadline is April 15 for a calendar-year LLC, and you can extend it six months to October 15 by filing Form 7004 before the original due date. To file at all, the LLC needs an EIN, which a non-resident can obtain without a Social Security number by submitting Form SS-4 (the responsible party enters foreign in the SSN field, and the form is typically faxed). Mark the deadline the day you form, because the 5472 obligation begins in the first year the LLC has any reportable transaction, and your initial capital contribution counts as one.
State and sales tax for non-residents
Wyoming itself imposes no state income tax and no franchise tax on your LLC, which is the entire appeal of the jurisdiction for this audience. What Wyoming does require is an annual report with a license tax, calculated on the value of assets the LLC holds within Wyoming, with a practical minimum around 60 dollars for most online businesses that hold no Wyoming-situated property. You must also maintain a Wyoming registered agent year-round; lapsing on either the report or the agent can administratively dissolve the LLC.
Other states are a separate question and depend on nexus. If you create a physical presence in another state, you can fall into its tax net even though you formed in Wyoming. The classic triggers are inventory stored in a state (for example, goods held in an Amazon FBA warehouse), US employees, or a fixed office or place of business. Where that happens, that state's income or gross-receipts tax can apply to the portion of activity connected to it, regardless of Wyoming's friendliness.
Sales tax is its own regime, owed to the destination state on taxable retail sales and unrelated to income tax. After the 2018 Wayfair decision, states impose economic nexus thresholds, commonly around 100,000 dollars of sales or 200 transactions into a state in a year, though the exact numbers vary by state and several have dropped the transaction count. Pure software-as-a-service and digital goods are taxable in some states and not others. If you sell physical products or taxable digital goods to US consumers at scale, sales tax compliance can become your most time-consuming obligation even when your income tax is zero.
A worked example you can follow
Consider a founder in Dhaka running a subscription web app through a single-member Wyoming LLC. Over the year the LLC collects 120,000 dollars from customers across many countries. All development, support, and operations happen in Bangladesh. There is no US office, no US staff, no US inventory. She pays herself by transferring money from the LLC's Mercury account to her personal account abroad several times during the year.
Walk the framework. Is there ECI? No US trade or business exists, because her income-producing activity occurs entirely in Bangladesh, so there is no ECI and no US federal income tax on the operating profit. Is there FDAP? Her revenue is payment for software and services, not passive US-source dividends, interest, or royalties, so there is no 30 percent withholding to worry about. State tax? Wyoming has none, and she has no nexus elsewhere. The result is zero US federal income tax.
What she still must do is file Form 5472 with a pro forma 1120 by April 15 (or October 15 with a Form 7004 extension). On it she reports her reportable transactions with the LLC: the capital she put in to start it and the distributions she took out during the year. Her transfers to her personal account are not separately taxed events, because the disregarded LLC is treated as her; moving money between the entity and herself is not income. Separately, Bangladesh taxes her under its own rules on this income. Net US picture: zero income tax, one mandatory information return whose omission would risk a 25,000 dollar penalty.
Reading the four federal scenarios as a decision tree
Most situations collapse into one of four patterns. Use them as a checklist after you have sorted your income by bucket and source.
| Scenario | US income tax | What you file |
|---|---|---|
| No ECI, no US-source income | 0 dollars | Form 5472 + pro forma 1120 |
| No ECI, US-source FDAP received gross | 30% (treaty may reduce) | Form 5472 + pro forma 1120; W-8BEN-E to payer |
| ECI from a US trade or business | Graduated rates on net profit | Form 5472 + pro forma 1120 + Form 1040-NR |
| FDAP fully withheld by the payer | Withholding satisfies the tax | Form 5472 + pro forma 1120 |
The constant across every row is the Form 5472 plus pro forma 1120 at the LLC level; that obligation never goes away for a foreign-owned single-member LLC. What changes is whether you layer an individual return or a treaty claim on top. The first row is where the large majority of non-resident digital founders land. The third row is the one that requires a CPA, because computing net ECI, claiming deductions, and filing a 1040-NR correctly is not a do-it-yourself exercise.
Treaties and the W-8BEN-E
When you do receive US-source FDAP, a tax treaty between the US and your country of residence may cut the 30 percent rate, sometimes to 15, 10, or even zero depending on the income type and the specific treaty. You claim the reduced rate by giving the US payer a completed Form W-8BEN-E (entities) or W-8BEN (individuals), which certifies your foreign status and the treaty article you are relying on. The payer keeps it on file and applies the lower withholding; you do not send it to the IRS yourself.
Two cautions matter here. First, a treaty only helps if it is actually in force between the US and your specific country, and the rate depends on the income category, so you must verify the current treaty and article rather than assume a number. The US has treaties with roughly 70 countries, but many large source markets for these businesses, including several in the Middle East, South Asia beyond a handful, and much of Africa, have no income tax treaty in force. If there is no treaty, the default 30 percent applies and Part III of the W-8BEN-E (the treaty claim section) stays blank.
Second, treaties only touch FDAP. They do not reduce tax on ECI, which is taxed at graduated rates regardless of any treaty, though a treaty's permanent-establishment article can sometimes affect whether your activity rises to a taxable US presence in the first place. The W-8BEN-E also typically needs renewal roughly every three years with each payer, so it is a recurring administrative item, not a one-time form. If you are unsure whether a treaty applies to you or at what rate, confirm with a cross-border CPA before relying on a reduced number, because getting it wrong can leave you under-withheld and exposed.
Common mistakes and edge cases
The single most common mistake is believing that zero US income tax means no filing. It does not. The Form 5472 obligation is independent of profit, and the 25,000 dollar penalty has caught many founders who shut down a barely-used LLC and stopped filing without formally dissolving it. If you are done with the entity, dissolve it properly through Wyoming and file a final 5472; an LLC that still legally exists still owes the return.
A second mistake is conflating where your customers are with where your business is. Selling to Americans does not create ECI. What creates ECI is conducting your income-producing activity inside the US, through people, premises, or operations physically there. Related to this is the FBA edge case: storing inventory in US fulfillment warehouses is widely treated as a US business presence, can create state nexus, and complicates the simple zero-tax story. E-commerce sellers with US inventory should not assume the SaaS founder's clean outcome applies to them.
Other recurring pitfalls: forgetting that a single-member LLC's default is disregarded while a multi-member's default is a partnership with a different form and an earlier March 15 deadline; assuming distributions to yourself are taxable when for a disregarded entity they are not; missing that adding a second owner converts the entity and its filings mid-stream; and treating fintech accounts as a tax matter when they are not. On that last point, Mercury, Relay, and Wise are fintechs operating over FDIC-insured partner banks rather than chartered banks themselves; account approval is the provider's decision and depends on your country profile and documents, with some countries excluded, so check the provider's current eligibility list rather than assuming access. Stripe similarly requires an LLC, EIN, US bank account, and a W-8BEN-E on file, with approval typically landing within a couple weeks. None of this changes your tax result, but confusing banking access with tax obligations is a frequent source of bad assumptions.
If your situation involves any US-source FDAP, any US physical presence, US inventory, partners, or genuine uncertainty about whether you have a US trade or business, treat this guide as a map rather than the territory and engage a CPA who does cross-border work. The cost of one consultation is trivial against a 25,000 dollar penalty or a misfiled ECI return.
Most readers, though, are the clean first-scenario case, and the practical next step is simply having a compliant entity in the right state. Forming a Wyoming LLC for 397 dollars all-inclusive gives you the registered agent, the filing, and the structure you need to obtain an EIN and bank account, sit in the no-state-income-tax jurisdiction, and meet the Form 5472 obligation cleanly from year one.