The Turkey-US income tax treaty is in force, but for most Turkish founders running a Wyoming LLC, the treaty is far less relevant than they expect, because their operating income is not US-source and not subject to US tax in the first place. This guide verifies the treaty's status against the IRS source list, gives you the real per-income-type withholding rates, and explains the compliance obligations (Form 5472 and a pro-forma 1120) that apply no matter what the treaty says.
Treaty status and what it means for Turkey founders
There is a tax treaty in force between Turkey (Türkiye) and the United States. The IRS confirms this on its official "United States income tax treaties - A to Z" page, which lists Turkey under "T" with a live link to the treaty documents and, importantly, carries none of the suspension or termination warnings that the IRS attaches to countries like Russia, Belarus, and Hungary. The agreement's full name is the "Agreement Between the Government of the United States of America and the Government of the Republic of Turkey for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income." It was signed in Washington on March 28, 1996, and entered into force on December 19, 1997, with provisions generally taking effect on January 1, 1998 (see the IRS Turkey tax treaty documents page and the Treasury technical explanation).
Status: IN FORCE. Not "signed but pending." Not "none." A Turkish tax resident is therefore a "resident of a Contracting State" who can, in principle, claim reduced withholding rates on certain categories of US-source income.
What that practically means is narrower than most founders assume. A tax treaty does two things. First, it caps the rate at which the source country (here, the US) can tax certain passive, US-source payments — dividends, interest, and royalties — that would otherwise face a flat 30% withholding. Second, through its Business Profits article, it confirms that active business profits of a Turkish resident are taxable only in Turkey unless that resident has a "permanent establishment" (PE) in the United States.
The catch, which the next sections develop, is that a typical Wyoming LLC owned by a Turkish founder rarely earns US-source dividends, interest, or royalties at all. It earns service fees, SaaS subscriptions, or e-commerce margin — income that is usually foreign-source and outside the US tax net entirely. So the treaty's rate caps are real and verified, but for many readers they govern income types the business simply does not have. Treat the treaty as a backstop for specific passive income, not as the thing that determines whether your LLC owes US tax.
Withholding rates by income type
The rates below are taken directly from the treaty text and the Treasury technical explanation published by the IRS. The 30% column is the default statutory withholding on US-source "fixed, determinable, annual, or periodical" (FDAP) income under Internal Revenue Code sections 1441 and 1442; the treaty column is the reduced maximum the US may impose on a qualifying Turkish resident who properly claims benefits.
| Income type | Default US withholding | Turkey treaty rate (verified) |
|---|---|---|
| Dividends — corporate shareholder owning ≥10% of payer | 30% | 15% |
| Dividends — all other (portfolio) | 30% | 20% |
| Interest — general | 30% | 15% |
| Interest — loan granted by a financial institution | 30% | 10% |
| Royalties — copyrights of literary, artistic, scientific works and other IP | 30% | 10% |
| Royalties — industrial, commercial, or scientific equipment | 30% | 5% |
| Active business profits with no US permanent establishment | Generally not US-taxed | Generally not US-taxed (Article 7) |
A few points that correct common misstatements (including some that appeared in older summaries of this treaty):
- The dividend rates are 15% and 20%, not 10%. The 15% rate applies only to a corporate shareholder owning at least 10% of the paying company; the 20% rate applies to everyone else, including individual investors. A Turkish individual holding US shares directly therefore faces 20%, not 15%.
- The general interest rate is 15%, and the 10% rate is specific. The reduced 10% applies to interest on a loan granted by a financial institution — it is not a general "portfolio interest" rate. Note also that genuine US-source "portfolio interest" can already be exempt from withholding under US domestic law (IRC §871(h)/§881(c)) regardless of any treaty, and most US bank-account interest paid to a foreign person is not US-source FDAP to begin with.
- Royalties split 5% / 10%. The 5% rate is reserved for royalties on industrial, commercial, or scientific equipment; the 10% rate covers copyrights and most other intellectual property. There is no single "5-10%" blended rate.
To get any of these reduced rates, the Turkish resident must give the US payer a valid Form W-8BEN-E (or W-8BEN for an individual) claiming treaty benefits before payment. Without that form, the payer is required to withhold the full 30%.
Does the treaty even matter for your LLC?
For most non-resident-owned Wyoming LLCs, the honest answer is: probably not much. Here is why.
A single-member Wyoming LLC owned by a non-US person is, by default, a "disregarded entity" for US federal tax purposes. It is not a separate taxpayer; its income is treated as the owner's income. The question then becomes whether that income is taxable in the US at all — and that turns on two concepts: source and effectively connected income (ECI) / permanent establishment.
Income from selling services or software to customers — whether those customers are in the US, Europe, or anywhere else — is generally sourced where the work is performed. If you, a Turkish resident, are doing the work from Istanbul or Ankara, the income is foreign-source. Foreign-source income earned by a non-resident with no US trade or business is outside the US income tax base. There is nothing for a treaty to reduce, because there was no US tax to begin with.
Even where income could be argued to be US-source, a non-resident is taxed on business profits only if those profits are "effectively connected" with a US trade or business — and the treaty's Article 7 (Business Profits) raises that bar further: a Turkish resident's business profits are taxable by the US only to the extent attributable to a US permanent establishment (a fixed place of business such as an office, branch, or dependent agent in the US). A founder operating remotely from Turkey, with no US office, no US employees, and no dependent US agent concluding contracts, generally does not have a US PE. The IRS overview of "Effectively connected income (ECI)" and "Permanent establishment" sets out these tests.
So the realistic picture for a typical Turkish-owned Wyoming LLC running a SaaS product, a marketing or development agency, or an e-commerce store, with the owner working from Turkey and no US physical presence, is:
- Operating revenue is foreign-source, or at minimum not ECI, and is not subject to US federal income tax.
- The treaty's dividend/interest/royalty caps are irrelevant to that revenue because it is none of those income types.
- The treaty's main contribution is the Article 7 confirmation that business profits stay out of US tax absent a US PE — useful as a defensive position, but it largely restates the result you already reach under US domestic source/ECI rules.
Where the treaty genuinely earns its keep is on the passive side: if your LLC (or you personally) holds US dividend-paying stocks, receives royalties from a US licensee, or earns US-source interest outside the portfolio-interest exemption. Then the table above does real work, cutting 30% down to 5%–20% depending on the income type.
One more reality check: "no US tax" does not mean "no tax." As a Turkish resident, your worldwide income — including the LLC's profit — is generally taxable in Turkey under domestic Turkish rules, and Turkey's Revenue Administration (Gelir İdaresi Başkanlığı, GİB) typically treats a US single-member LLC's income as flowing through to you. Coordinate with a Turkish advisor on declaration, controlled-foreign-company considerations, and any exchange-control reporting.
How to claim: W-8BEN-E line-by-line + Form 8833 if needed
If your LLC does receive US-source FDAP (dividends, interest, royalties) on which you want the reduced treaty rate, you claim it by giving the US payer a completed Form W-8BEN-E (for the entity) — never by sending anything to the IRS at the point of payment. The current form and the IRS Instructions for Form W-8BEN-E govern. A single-member disregarded LLC is a special case the instructions address directly.
For a US disregarded entity owned by a foreign person, the IRS instructs you to complete the W-8BEN-E in the name of the foreign owner (the beneficial owner), not in the name of the disregarded LLC, and to identify the LLC separately. Key lines:
- Line 1 — Name of the organization that is the beneficial owner. For a disregarded LLC, enter the foreign owner's name (you, the Turkish individual, or your Turkish parent entity), not the LLC name.
- Line 2 — Country of incorporation: leave per instructions if you entered an individual owner; for a foreign entity owner, its country.
- Line 3 — Name of the disregarded entity receiving the payment: enter the Wyoming LLC's name here.
- Line 4 — Chapter 3 status: check Disregarded entity only where the entity has its own GIIN/treaty claim; otherwise the owner's status (e.g., individual via W-8BEN, or corporation) controls. Read the instructions carefully — many single-member LLCs owned by an individual should use Form W-8BEN in the individual's name instead.
- Line 5 — Chapter 4 (FATCA) status as applicable.
- Line 6 — Permanent residence address in Turkey (no US address, no PO box).
- Line 9b — Foreign TIN: your Turkish tax ID (Vergi Kimlik No / T.C. Kimlik No).
- Part III (Lines 14–15) — Claim of Tax Treaty Benefits: check that the beneficial owner is a resident of Turkey, and on Line 15 state the Article and rate (e.g., "Article 10, 20%" for portfolio dividends; "Article 12, 10%" for IP royalties) and the income type. This is the operative treaty claim.
- Part XXX — Sign, date, and certify.
You will also generally need a US TIN — an EIN for the entity, and for treaty claims an ITIN or SSN may be required for the individual beneficial owner. (We form your Wyoming LLC for $397 all-inclusive with the Wyoming state fee included, and can add an ITIN application for $297 — useful precisely for treaty and W-8 purposes.)
Form 8833 is a separate, IRS-filed disclosure — not given to payers. You attach it to a US tax return to disclose a "treaty-based return position" under IRC §6114. Most non-residents claiming a standard reduced withholding rate via W-8BEN-E do not need 8833; the instructions waive disclosure for many routine reduced-rate dividend, interest, and royalty claims. You do need Form 8833 when you take a less routine position — for example, claiming that the treaty (Article 7/PE) overrides what would otherwise be US taxation of business profits, or otherwise reduces US tax in a way that requires disclosure. See the IRS About Form 8833 page; the failure-to-disclose penalty is generally $1,000 per position for individuals. When in doubt about whether a position is "routine," disclose.
Form 5472 + pro-forma 1120 obligation ($25k penalty) regardless of treaty
This is the obligation that catches the most Turkish founders off guard, and it applies whether or not the treaty helps you and whether or not you owe a cent of US tax.
A Wyoming LLC that is a disregarded entity wholly owned by a foreign person is treated as a "reporting corporation" for these purposes. Under the regulations, it must file Form 5472 ("Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign-Owned U.S. DE") together with a pro-forma Form 1120 cover. The 1120 is informational — you fill in the entity's identifying details and attach the 5472; you do not compute corporate tax on it. Form 5472 reports "reportable transactions" between the LLC and its foreign owner or related parties — capital contributions you put in, distributions you take out, loans, and the like.
This filing has nothing to do with the treaty. A Turkish owner with zero US-source income, zero US PE, and zero US tax liability still must file. The penalty for failing to file Form 5472 (or filing it late or substantially incomplete) is $25,000, and it can recur. The IRS sets out the requirement and the penalty on the About Form 5472 page and in the Instructions. The deadline tracks the 1120 due date — generally April 15 for a calendar-year filer (with a possible extension via Form 7004). If you have no EIN yet, you must obtain one to file; you do not need an ITIN for the 5472 itself.
Separately, note the US payment-reporting rules that may affect your LLC's platforms: the 1099-K threshold is currently more than $20,000 AND more than 200 transactions in a year, after the One Big Beautiful Bill Act repealed the planned $600 threshold. A 1099-K is informational and does not by itself create US tax, but it is one reason to keep clean books.
Common mistakes
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Assuming the treaty makes the LLC tax-free. It does not, and it usually does not need to. For most Turkish founders the LLC's operating income is already foreign-source / non-ECI and outside US tax. Crediting the treaty for that result, then ignoring the actual compliance forms, is the core error.
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Quoting the wrong dividend rate. The treaty dividend rates are 15% (corporate owner with ≥10%) and 20% (everyone else) — not 10%. An individual Turkish investor faces 20% on portfolio dividends. Older summaries that list "10%" are wrong.
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Misreading the interest and royalty splits. The general interest rate is 15% (10% only for financial-institution loans), and royalties are 10% (5% only for equipment). And much US bank interest paid to a foreign person is not even US-source FDAP, so no claim is needed.
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Not filing W-8BEN-E (or the right W-8) with US payers. No valid form means the payer must withhold the full 30%, and clawing it back later via a US tax return is slow and uncertain. Put the form on file before the first payment, in the beneficial owner's name per the disregarded-entity instructions.
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Forgetting Form 5472 + pro-forma 1120. The single most expensive mistake on this list — a flat $25,000 penalty that applies even with zero US tax. File every year you have any reportable transaction (including your initial capital contribution).
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Ignoring the Turkish side. Türkiye's GİB generally taxes your worldwide income, including the LLC's profit, and may apply CFC or exchange-control rules. The US treaty does not exempt you in Turkey — confirm your Turkish filing with a local advisor.
Sources: IRS — United States income tax treaties A to Z; IRS — Turkey tax treaty documents and the Treasury/IRS technical explanation (turkey.pdf); IRS — About Form W-8BEN-E; IRS — About Form 8833; IRS — About Form 5472; IRS — Effectively connected income (ECI). Always confirm current rules with the IRS and a qualified US and Turkish tax advisor; this article is general information, not tax advice.