FDAP Income: What It Is, 30% Withholding & How to Reduce It (2026)

The US taxes non-residents on two different tracks. Income from actively running a US business is effectively connected income (ECI), taxed on net profit at ordinary rates through a filed return. Everything else that is US-source and recurring falls into the second track: FDAP. Foreign individuals are taxed on it under IRC section 871(a), foreign corporations under section 881, and the payer collects the tax by withholding under sections 1441 and 1442.

The design is deliberate. The IRS has no practical way to make a person in Lagos or Mumbai file a US return for a $400 dividend, so it makes the US payerresponsible instead. The payer takes 30% off the top, sends it to the Treasury and reports it. For many foreign recipients, that withholding is the end of their US tax on the payment — no return, no deductions, no refund.

That is why FDAP matters even to people who think they have no US tax exposure. A foreign founder who holds US shares, licenses software to a US company, rents out a US property or lends money to a US business is receiving FDAP-type income, and the default treatment is a 30% haircut unless the paperwork is in place before the payment is made.

What the four words mean

The label is old statutory language, and it is broader than it sounds. The IRS reads it as covering almost any income that is not a gain from selling property:

• Fixed — the amount is known in advance, like a stated interest coupon or a fixed rent.
• Determinable — there is a basis for working out the amount, even if it is not known yet, like a royalty of 5% of sales.
• Annual — not literally yearly. A payment does not need to recur every year to qualify.
• Periodical — paid from time to time, but again a one-off payment can still count.

In practice, “annual or periodical” is read so loosely that a single, one-time payment can be FDAP. The real test is the first two words plus the source rule: is it US-source income whose amount is fixed or can be determined? If yes, and it is not effectively connected with a US business, it is FDAP.

For a foreign founder or investor, four categories account for almost all of it. Each has its own source rule — the test that decides whether the payment is US-source at all, which is the gate every FDAP question has to pass first.

Other income the IRS treats as FDAP

Beyond the big four, Publication 515 lists annuities, pensions, alimony under pre-2019 agreements, prizes and awards, gambling winnings, scholarship and fellowship grants beyond tuition, and some insurance premiums. These matter less to business owners but follow the same 30% default.

What is not FDAP

The exclusions are where most of the useful planning sits, and where most foreign founders are overcautious.

The first row deserves emphasis because it is the single most common mistake in this area. A designer in Pakistan, a developer in Nigeria or a consultant in India who works from home for US clients is earning foreign-sourceincome. It is not FDAP, it is not subject to 30% withholding, and the US client should not withhold if it holds a valid Form W-8BEN. Pay for work performed physically in the US is a different matter — it is US-source, and it is usually handled as effectively connected income under separate rules rather than as FDAP.

Two features make FDAP taxation very different from ordinary income tax. First, the base is gross. If a US tenant pays $24,000 of rent and the property costs $15,000 a year to run, the 30% applies to the full $24,000 — $7,200 of tax on $9,000 of real profit. Second, the tax is collected at source. The withholding agent pays it over to the IRS whether or not the foreign recipient ever files anything.

Rental income: the net election

Rent is the one FDAP category where the gross-basis rule is regularly worse than the alternative. Under IRC sections 871(d) and 882(d), a foreign owner of US real property can elect to treat the rental income as effectively connected. The rent is then taxed on net income after mortgage interest, repairs, property tax and depreciation, at graduated rates, through a filed return. For most rental properties that turns a large withholding bill into a small or zero tax. The trade-off is that you must file a US return every year, on time, to keep the election working.

When withholding is the final tax

For a foreign individual whose only US income is FDAP that was correctly withheld, there is generally no further US tax and often no return to file. The withholding settles the liability. A return becomes necessary when you want something back — a refund of over-withholding — or when you also have effectively connected income.

The US has income tax treaties with roughly 60 countries. Each sets its own maximum rates by income type, and a resident of a treaty country can claim them by giving the payer a valid W-8 form before the payment. The table below covers the countries our clients most often come from.

Read the table as a ceiling, not a guarantee. Most treaties attach conditions: a limitation on benefitsarticle that stops companies set up in a treaty country purely to borrow its rates, holding thresholds for the lower dividend rate, and special rules for interest paid by banks or royalties for equipment. Interest that is already exempt under US law — bank deposit interest and portfolio interest — does not need a treaty at all.

Two points trip up founders from non-treaty countries. First, there is no “close enough”: living in Dubai does not give you the UK rate because your company is registered in London; the treaty follows the beneficial owner’s tax residence, and an entity has to qualify under the treaty’s limitation-on-benefits rules. Second, the absence of a treaty does not make a US LLC a bad idea — most foreign-owned LLCs earn service or sales income that is not FDAP in the first place. The treaty question only bites on passive US income. For how residence and treaty claims interact with an LLC, see treaty benefits for foreign LLC owners.

This is the most confused distinction in non-resident taxation, and it decides almost everything else: your rate, whether you can deduct expenses, who collects the tax, and which return you file.

The line between them is the US trade or business test, and it is a facts test, not a label you choose. Interest earned by a lending business with US staff is ECI; interest on a one-off loan to a US company is FDAP. Rent from a US hotel you operate is ECI; rent from a single leased apartment is FDAP unless you make the net election. A foreign-owned single-member LLC selling online with no US employees, office or dependent agent usually has neither on its sales income. The step-by-step test, with worked examples, is in FDAP vs ECI. The full picture of how a foreign-owned LLC is taxed is in effectively connected income and the foreign-owned LLC.

Any person who controls a payment of FDAP income to a foreign person is a withholding agent: a US company paying a licence fee, a broker crediting dividends, a tenant paying rent to a foreign landlord, a property manager collecting it. That liability is what makes US payers insistent about W-8 forms. Without one, the agent is required to presume the payee is foreign and withhold the full 30% — and if it gets the rate wrong, the IRS collects the shortfall from the agent.

The foreign-owned LLC look-through

A single-member LLC owned by one foreign person is a disregarded entity. For withholding, the IRS looks straight through it: when a US payer sends FDAP to the LLC, the foreign owneris treated as the payee. The owner, not the LLC, certifies status on a W-8 — W-8BEN for an individual owner, W-8BEN-E for a corporate owner — with the LLC’s name on line 7 of W-8BEN or line 10 of W-8BEN-E. The Form W-9 instructions say so directly: a disregarded entity with a foreign owner uses the owner’s W-8, not a W-9.

The reverse direction is simpler than people fear. Payments betweenthe disregarded LLC and its own foreign owner — interest on an owner loan, a royalty for a brand the owner licenses to the LLC — are disregarded for income tax, because the LLC and the owner are the same taxpayer. But they are not invisible. Those same payments are reportable transactions on Form 5472.

Four forms make up the whole FDAP paper trail. Two of them are yours to complete; two are the payer’s.

A W-8 is valid from the date it is signed until the last day of the thirdcalendar year after that, unless your circumstances change first — a new country of residence, a new address, a change in entity type. The individual-versus-entity choice is covered in detail at W-8BEN vs W-8BEN-E, and reading the payer’s statement is covered in Form 1042-S for foreign recipients.

• Establish residence.The treaty follows the beneficial owner’s tax residence under that country’s law. Citizenship and where a company is registered are not enough on their own.
• Find the article. Interest, dividends and royalties each have their own treaty article and rate. IRS Table 1 lists the article for every treaty country.
• Check the conditions. Entities must satisfy the limitation-on-benefits article. Lower dividend rates usually need a minimum shareholding.
• Provide a taxpayer ID. A treaty claim on a W-8 needs a US TIN (SSN or ITIN) or your foreign tax identification number. Most founders use the foreign one.
• Complete the treaty section. Name the country, the article, the rate and the income type, and explain any special conditions you rely on.
• Deliver it before payment. Withholding agents apply the rate on the form they hold on the payment date. A form that arrives late does not reduce tax already withheld.

If the payer withheld 30% anyway — because the form arrived late or was rejected — the excess can still be recovered. A foreign individual files Form 1040-NR and a foreign corporation files Form 1120-F, attaching the Form 1042-S as proof of tax paid. Refund claims take months, so fixing the W-8 is always the faster route.

The rules read abstractly until they meet a real payment. These are the situations foreign founders ask about most, with the answer and the reason.

Notice how often the answer is no. The fear that “the US takes 30% of everything a foreigner earns” comes from reading the FDAP rule without the source rules in front of it. The 30% default is real, but it applies to a specific slice of income — passive returns from US people, US companies and US property — not to the fees and sales revenue that most foreign-owned LLCs actually earn.

The rows marked yes share a pattern too: in every case, the payer is a US person who controls the money before it reaches you. That is the withholding agent, and the size of the cut depends almost entirely on whether a valid W-8 with a treaty claim reached that payer first.

Most of these are cheap to prevent and slow to undo. A missing W-8 costs nothing to fix before the payment and a refund claim to fix after it. For a foreign-owned LLC, the second row is the one to watch: US payers routinely send a W-9 to any LLC with a US address, and a disregarded LLC owned by a foreign person should answer with the owner’s W-8 instead.

FATCA withholding is a separate 30%

Foreign entities also meet a second 30% regime under chapter 4, known as FATCA. It applies to payments to foreign entities that do not document their FATCA status — which is why Part I of Form W-8BEN-E asks for a chapter 4 classification. A properly completed W-8BEN-E answers both regimes at once. Foreign individuals signing W-8BEN do not need a chapter 4 status.

FDAP withholding is a US tax, but the income is still yours, and your country of residence will normally tax it too. The two systems are reconciled through a credit: your home country reduces its tax by the US tax already paid on the same income, usually capped at what it would have charged itself.

This is why the treaty rate matters even when you will get a credit at home. If the US withholds 30% and your home rate on dividends is 15%, the credit is normally limited to 15% — the extra 15% is simply lost unless you reclaim it from the IRS. Claiming the treaty rate up front keeps the US share at the level your home country will actually credit.

Countries without a US treaty may still give a credit under their domestic law, but the US side stays at 30% with no reduction available. The specific rules are your home country’s, so confirm them with a local adviser. The US paper trail you need for any of it is the same: the Form 1042-S for each payment.

Three situations come up repeatedly. An LLC that holds a US brokerage account receives dividends, and the broker withholds at the owner’s rate based on the owner’s W-8. An LLC that owns a US rental property receives rent, which is FDAP unless the net election is made. And an owner who funds the LLC with a loan, or licenses it a brand, creates owner-to-LLC payments that are disregarded for tax but reportable on Form 5472.

That last point is where the real risk sits. Withholding errors cost money, but they are fixable. A missed Form 5472 carries a $25,000 penalty per form, per year, even when no tax is owed. Virtually every foreign-owned single-member LLC has at least one reportable transaction — even a capital contribution counts — so it almost certainly must file. The LLC-specific version of this topic, with worked examples, is FDAP income for foreign LLC owners.