U.S.–Turkey Tax Treaty: 2026 Comprehensive Guide

Introduction / Executive Summary

The Turkey US tax treaty, formally known as the U.S.–Turkey Income Tax Treaty, establishes how the United States and Türkiye allocate taxing rights over certain cross-border income, limit source-country withholding taxes, and provide relief from double taxation.

For companies operating in both countries, the practical application of the treaty depends on the type of income, treaty residence, beneficial ownership, the Article 22 Limitation on Benefits rules, and whether business activities create a permanent establishment in the other country.

The tax treaty between the US and Turkey does not provide a blanket exemption from all taxes or eliminate every domestic tax and reporting obligation.

Designed for Chief Financial Officers (CFOs), institutional investors, digital nomads, and technology firms operating across borders, this 2026 guide delineates the boundaries between bilateral treaty benefits and U.S. domestic tax laws, providing a practical framework for understanding cross-border tax obligations and assessing potential treaty benefits.

What Does the US Turkey Tax Treaty Cover?

When Was the Treaty Signed and When Did It Take Effect?

The formal agreement between the United States and the Republic of Turkey was signed in Washington on March 28, 1996. The treaty officially entered into force on December 19, 1997. Its provisions generally became effective for taxes withheld at source on amounts paid or credited on or after January 1, 1998.

What Taxes Does the Treaty Cover?

Under Article 2 (Taxes Covered), the treaty applies to specific taxes imposed by each state:

• In Turkey: The Income Tax (Gelir Vergisi), the Corporation Tax (Kurumlar Vergisi), and the supplementary surcharges imposed on them.
• In the United States: Federal income taxes imposed by the Internal Revenue Code (IRC) and excise taxes imposed on private foundations.
• Critical Exclusions: The treaty explicitly does not cover U.S. State Income Taxes, Turkish Value Added Tax (KDV), or Social Security/Employment taxes (though Article 24 Non-Discrimination may have a broader scope).

Who Can Potentially Claim Treaty Benefits?

Treaty benefits are available to individuals and corporate entities who qualify as “Residents” of either the U.S. or Turkey under domestic law, provided they are the ultimate Beneficial Owners of the income and successfully satisfy the Limitation on Benefits (LOB) provisions outlined in Article 22.

What the Treaty Does — and Does Not — Do

• It Does: Determine tax residency via tie-breaker rules, limit statutory WHT rates, and provide mechanisms for double taxation relief.
• It Does NOT: Erase U.S. tax liability for U.S. citizens, eliminate FinCEN or IRS asset reporting (FBAR/FATCA), or exempt businesses from Turkish indirect taxes.

U.S. Citizens in Turkey and the Saving Clause

Does Living in Turkey End U.S. Tax Obligations?

No. The United States taxes its citizens and lawful permanent residents (Green Card holders) on their worldwide income, regardless of where they physically reside. Establishing local tax residency in Turkey does not sever this federal obligation.

Article 1(3) Saving Clause Explained

The most critical provision affecting U.S. expats is the “Saving Clause” found in Article 1(3). This clause expressly reserves the right of the United States to tax its citizens and residents as if the treaty had not come into effect. Consequently, a U.S. citizen living in Istanbul cannot cite the treaty’s general provisions to entirely shield their worldwide income from the IRS.

Exceptions Under Article 1(4)

The Saving Clause is subject to specific exceptions under Article 1(4), but these exceptions are narrower than a general exemption from U.S. taxation.

Under Article 1(4)(a), certain benefits under Article 9(2), Article 18(2), and Articles 23, 24, and 25 remain available despite the Saving Clause.

Article 1(4)(b) also preserves certain benefits under Articles 19, 20, and 27 for individuals who are neither citizens of, nor have immigrant status in, the State applying the Saving Clause.

Importantly, Article 18(2) concerns payments under social security or similar legislation. It should not be confused with all private pensions and annuities covered by Article 18.

U.S. Citizens vs. Green Card Holders vs. Other U.S. Taxpayers

While U.S. citizens and Green Card holders are constrained by the Saving Clause, Non-Resident Aliens (NRAs)—such as a Turkish citizen living in Izmir investing in U.S. stocks—are not. NRAs can utilize the treaty to reduce U.S. withholding taxes on their passive U.S.-source income without facing worldwide IRS taxation.

U.S.–Turkey Tax Residency and the Treaty Tie-Breaker

U.S. Domestic Residence Rules

Under U.S. law, an individual may qualify as a resident alien under the Substantial Presence Test if they are physically present in the United States for at least 31 days during the current year and meet the 183-day weighted calculation over the current year and the two preceding years.

The calculation counts all days in the current year, one-third of the days in the preceding year, and one-sixth of the days in the second preceding year. Certain exceptions and exclusions may apply.

Turkish Tax Residence

Under Turkish domestic law, individuals are generally treated as fully liable to tax in Turkey if they have a legal domicile in Turkey or reside in Turkey for more than six months in a calendar year, subject to statutory exceptions and the applicable rules for temporary absences.

Treaty Residence Under Article 4 & Tie-Breaker Rules

When both nations claim an individual as a tax resident under their respective domestic laws, Article 4 provides hierarchical Tie-Breaker Rules:

1. Permanent Home: In which country does the individual have a permanent home available to them?
2. Center of Vital Interests: If they have a home in both, where are their personal, family, and economic relations closer?
3. Habitual Abode: If the center of vital interests cannot be determined, where do they usually reside?
4. Nationality: If they have a habitual abode in both or neither, what is their citizenship?
5. Mutual Agreement Procedure (MAP): If nationality does not resolve the issue, Competent Authorities (IRS and GİB) must settle the matter by mutual agreement.

Corporate Residence Under Article 4(3)

The treaty also addresses dual-resident companies. Where a company qualifies as a resident of both Contracting States under their domestic laws, it is generally treated as a resident of the State in which it has its place of incorporation. For a Turkish company, the treaty definition refers to its legal head office registered in Turkey under Turkish commercial law.

U.S.–Turkey Tax Treaty Withholding Tax Rates

A primary commercial benefit of the treaty is the limitation of statutory Withholding Tax (WHT) rates on cross-border payments.

Income Type	Treaty Article	Maximum Rate
Dividends – Qualifying Corporate Ownership	Article 10	15%
Dividends – General Cases	Article 10	20%
Interest – Qualifying Financial Institution Loans	Article 11	10%
Interest – General Cases	Article 11	15%
Qualifying Government Interest Exemptions	Article 11	0%
Royalties – Intellectual Property and Know-how	Article 12	10%
Royalties – Industrial, Commercial or Scientific Equipment	Article 12	5%

Dividends — Article 10

If a company pays dividends, the withholding tax is capped at 15%, provided the beneficial owner is a company that holds at least 10% of the voting power of the paying company. For other general cases, including retail investors, the rate is capped at 20%.

For a broader overview of Turkish corporate taxation, dividend distributions, and the tax treatment of company profits, see our Corporate Tax in Turkey 2026 guide.

Special exceptions apply to U.S. Regulated Investment Companies (RICs) and Real Estate Investment Trusts (REITs), as well as their Turkish equivalents. For example, the 20% rate on REIT dividends generally applies only if the beneficial owner is an individual holding less than a 10% interest; otherwise, higher domestic rates may apply.

Interest — Article 11

The general treaty rate for cross-border interest payments is 15%. To facilitate cross-border financing, interest paid to qualifying banks or financial institutions is capped at 10%.

A full exemption (0%) applies only in specific cases outlined in Article 11(3), such as interest paid to the government or central bank of the other state, or interest on loans guaranteed or insured by the government.

Royalties — Article 12

Article 12 bifurcates royalty payments:

• 5% Rate: Applies to payments for the use of, or the right to use, industrial, commercial, or scientific equipment.
• 10% Rate: Applies to payments for copyrights, patents, trademarks, secret formulas, and know-how (information concerning industrial, commercial, or scientific experience).

The Software Classification Challenge: Characterizing software payments requires rigorous analysis of the rights transferred. If a transaction merely grants the user the right to operate the software for their own use without transferring copyright exploitation rights, it may be classified as Business Profits rather than Royalties. However, if rights to reproduce or modify the software are transferred, the payment is generally treated as a Royalty subject to the 10% WHT. Professional review is heavily advised.

Branch Profits Tax

Article 10(4) addresses additional taxation of profits attributable to permanent establishments.

Turkey may tax the remaining profits attributable to a U.S. company’s permanent establishment in Turkey in accordance with Turkish law.

For a Turkish-resident corporation with a permanent establishment in the United States, the additional U.S. tax described in Article 10(4)(b) is subject to a maximum rate of 15%, subject to the conditions of the treaty.

How Double Taxation Is Relieved Under the U.S.–Turkey Treaty

Relief from Double Taxation — Article 23

The treaty employs the Credit Method to mitigate double taxation. If a resident earns income that is taxable in both jurisdictions, Article 23 generally mandates that the residence country grant a credit against its tax for the appropriate amount of tax paid to the source country.

Foreign Tax Credits Under U.S. Law

In the U.S., relief is executed through domestic law (IRC Sections 901-908) using Form 1116 (for individuals) or Form 1118 (for corporations).

Turkish Relief for U.S. Taxes

Under Turkish domestic tax rules and subject to the applicable limitations, a Turkish tax resident may generally claim relief for qualifying foreign income taxes paid on income that is also subject to Turkish tax. The availability and amount of the credit depend on the relevant income category, supporting documentation, and statutory requirements.

Why Double Taxation Relief Does Not Mean Zero U.S. Tax

A Foreign Tax Credit generally offsets tax liability up to the amount of U.S. tax applicable to that foreign income. If the Turkish tax rate is lower than the taxpayer’s U.S. tax bracket, the taxpayer will likely owe the IRS the difference.

Permanent Establishment and Business Profits

What Is a Permanent Establishment?

Under Article 5, a Permanent Establishment (PE) is defined as a “fixed place of business” through which the business of an enterprise is wholly or partly carried on. This includes a place of management, a branch, an office, a factory, or a workshop.

Construction and Installation PE

A building site, construction, assembly, or installation project constitutes a PE only if it lasts for more than six months.

Dependent Agent PE

Even without a physical office, a U.S. company can trigger a PE in Turkey if it utilizes a “Dependent Agent”—a person who possesses and habitually exercises the authority to conclude contracts in the name of the U.S. enterprise.

Business Profits Under Article 7

Under Article 7, Turkey generally may not tax the business profits of a U.S. enterprise unless the enterprise carries on business in Turkey through a permanent establishment. Where a PE exists, Turkey may tax the profits attributable to that PE, subject to the treaty and applicable domestic law.

Who Can Claim Treaty Benefits? — Article 22 LOB

Limitation on Benefits Tests

Article 22 establishes several routes through which an entity may qualify for treaty benefits to prevent “Treaty Shopping.”

Key provisions include:

• Ownership and Base-Erosion Test: Generally requires more than 50% of the beneficial interest in the entity, or more than 50% of each class of shares in a company, to be owned by qualifying persons. The entity must also satisfy the applicable base-erosion condition concerning payments to non-qualifying persons.
• Publicly Traded Company Test: Applies to qualifying companies whose principal class of shares is substantially and regularly traded on a recognized stock exchange, subject to the treaty’s ownership requirements for certain subsidiaries.
• Active Business Test: Applies where the income is connected with or incidental to the active conduct of a trade or business in the residence country. The business must be substantial in relation to the activity generating the income in the other country. Certain financial investment activities are excluded, subject to the treaty’s banking and insurance exceptions.
• Discretionary Relief: Under Article 22(6), a person who does not otherwise qualify may still be granted treaty benefits if the competent authority of the country in which the income arises so determines.

U.S. Domestic Rules: FEIE vs. The Tax Treaty

Do not confuse bilateral treaty benefits with U.S. domestic tax relief tools.

Tax Tool / Framework	Primary Function	Source of Law
Tax Treaty (DTT)	Allocates taxing rights & limits WHT	Bilateral International Law
FEIE (Form 2555)	Excludes foreign earned income	U.S. IRC §911
FTC (Form 1116/1118)	Credits foreign taxes paid	U.S. IRC §901

Foreign Earned Income Exclusion — Form 2555

The FEIE is a provision of U.S. domestic law, not a benefit created by the tax treaty. Qualifying U.S. expats can exclude a portion of their foreign earned income (salary, wages, self-employment) from U.S. federal taxation up to the IRS’s annually adjusted maximum limit. Passive income (dividends, rental income) cannot be excluded under FEIE.

FATCA, FBAR and Form 8938: What U.S. Persons in Turkey Need to Report

The tax treaty offers zero protection against U.S. financial transparency laws.

FBAR — $10,000 Aggregate Account Threshold

If you are a U.S. Person and the aggregate maximum value of all your foreign financial accounts exceeds $10,000 at any time during the calendar year, you must file FinCEN Form 114 (FBAR).

Form 8938 Thresholds (Taxpayer Reporting)

Separate from institutional reporting, individual U.S. taxpayers living abroad who meet specific IRS qualifications face FATCA reporting obligations (Form 8938) for specified foreign financial assets. Reporting thresholds vary by filing status for expats living abroad:

Filing Status – Living Abroad	Year-End Threshold	Any-Time Threshold
Unmarried / Married Filing Separately	$200,000	$300,000
Married Filing Jointly	$400,000	$600,000

What the U.S.–Turkey Tax Treaty Does Not Cover

Turkish VAT / KDV

The treaty covers specific income taxes identified in Article 2. Sales of goods or digital services in Turkey are subject to Turkish Value Added Tax (KDV) according to domestic tax codes.

U.S. State Income Taxes

U.S. State and local income taxes are not included in the list of covered taxes under Article 2. Therefore, state tax obligations generally remain outside the scope of the treaty’s core protections, though Article 24 (Non-Discrimination) applies to taxes of every kind and description imposed by a Contracting State or a political subdivision.

U.S. Social Security Taxes

The absence of a U.S.–Turkey Totalization Agreement may create a risk of overlapping social security obligations for certain individuals, including some self-employed persons. Whether contributions are due in both countries depends on the applicable domestic rules and the individual’s circumstances. (Note: This is distinct from Social Security benefits, which are addressed in Article 18(2)).

How to Claim US–Turkey Treaty Benefits (Form W-8BEN-E)

Form W-8BEN & Form W-8BEN-E

Turkish residents deriving U.S.-sourced income must generally submit Form W-8BEN (for individuals) or Form W-8BEN-E (for corporate entities) to the U.S. withholding agent to claim reduced treaty rates.

How Turkish Companies Claim U.S.–Turkey Tax Treaty Benefits Using Form W-8BEN-E

A Turkish company receiving qualifying U.S.-source income may use Form W-8BEN-E to document its foreign status and claim a reduced rate of U.S. withholding tax under the U.S.–Turkey income tax treaty, where the applicable requirements are satisfied.

The appropriate documentation depends on the entity’s legal and tax classification. Certain partnerships, flow-through entities, or intermediaries may need to provide a different withholding certificate, such as Form W-8IMY, rather than Form W-8BEN-E.

The form must be provided to the U.S. withholding agent or payer before the relevant payment is made or credited. It is not submitted directly to the IRS.

For a Turkish entity seeking W-8BEN-E treaty benefits in the United States, Part III is particularly important:

• Line 14a: Identifies the country of residence for tax treaty purposes.
• Line 14b: Certifies that the entity derives the income for which treaty benefits are claimed and satisfies the applicable Limitation on Benefits requirements.
• Line 15: Is used where additional treaty conditions or special rates must be explained, including certain claims involving different royalty categories or specific interest exemptions.

The information provided must correspond to the relevant treaty article, income category, and withholding rate. Completing the form does not automatically establish eligibility for treaty benefits.

• Beneficial Ownership and LOB: The company must truly qualify. Merely incorporating in Turkey and providing a W-8BEN-E does not guarantee treaty rates.
• Form Submission: The form is provided to the Withholding Agent, not the IRS, prior to payment.
• Form Validity: A W-8BEN-E is generally valid until the last day of the third calendar year following the year in which it was signed, unless a change in circumstances makes the information incorrect.

The IRS tax treaty table for Turkey provides a useful summary of withholding rates, but it should not replace a review of the actual treaty provisions. The IRS itself cautions that its treaty tables are not a complete guide and that some rates are not bilateral.

For detailed guidance, refer to the IRS Instructions for Form W-8BEN-E and the official guidelines on Claiming Tax Treaty Benefits.

Form 8833

If a U.S. taxpayer takes a position that a treaty overrides an Internal Revenue Code provision, they must typically disclose this “Treaty-Based Return Position” to the IRS using Form 8833, unless specific regulatory exemptions apply. Form 8833 should not be confused with the withholding documentation used for ordinary treaty claims. Reduced withholding on qualifying dividends, interest, rents, or royalties is generally documented through the applicable Form W-8 rather than Form 8833, subject to the relevant IRS exceptions and reporting rules.

Tax Residency Documentation (Form 6166)

Turkish tax authorities may request a certificate of U.S. tax residence, such as Form 6166 (requested via Form 8802), when a taxpayer seeks treaty relief in Turkey. The applicable documentation, certification, translation, and submission requirements should be checked for the relevant procedure.

U.S.–Turkey Tax Treaty Examples

1. U.S. Company Paying Dividends to a Turkish Company

• Facts: A U.S. corporation pays dividends to a Turkish parent company that owns 25% of its voting stock and satisfies the LOB tests.
• Potential Tax Treatment: Under Article 10, the U.S. WHT rate is generally limited to 15%.
• U.S. Reporting: The Turkish company provides a W-8BEN-E; the U.S. payor files Form 1042-S.

2. Turkish Company Paying Interest to a U.S. Company

• Facts: A Turkish commercial bank pays interest on a loan provided by a U.S. financial institution.
• Potential Tax Treatment: Under Article 11, the Turkish WHT rate is capped at 10% for qualifying financial institutions.
• U.S. Reporting: The U.S. institution reports the income and may claim a Foreign Tax Credit (Form 1118) for the tax paid to Turkey.

3. U.S. Freelancer Living and Working in Turkey

• Facts: A U.S. citizen lives in Istanbul on a residence permit, earning consulting fees.
• Potential Tax Treatment: Due to the Saving Clause, the treaty does not shield them from IRS filing obligations.
• U.S. Reporting: They may elect to exclude qualifying earned income up to the annual limit using the FEIE (Form 2555). For remaining income, they may claim an FTC (Form 1116), subject to IRC limitations. Dual social security liabilities remain a risk.

Who Can Advise on the US-Turkey Tax Treaty?

Companies operating in both the United States and Türkiye may need coordinated legal and tax advice to understand how the U.S.–Turkey income tax treaty applies to their transactions.

Depending on the nature of the business and the income involved, appropriate professional guidance may require a U.S.-qualified international tax attorney, CPA, or other qualified tax professional working alongside a Turkish tax lawyer.

A cross-border tax review may involve several important questions:

• Tax Residency: Is the company recognized as a tax resident of the United States or Türkiye under the relevant domestic rules and Article 4 of the treaty?
• Withholding Tax: Are dividend, interest, or royalty payments eligible for the reduced rates provided under Articles 10, 11, and 12?
• Beneficial Ownership and LOB: Does the recipient qualify as the beneficial owner of the income, and does the entity satisfy the applicable Article 22 Limitation on Benefits requirements?
• Permanent Establishment: Could offices, employees, dependent agents, construction projects, or other business activities create a taxable presence in the other country?
• Treaty Documentation: Are the required forms, tax residency certificates, and supporting documents properly prepared and submitted?
• Double Taxation Relief: How should foreign taxes paid in one jurisdiction be treated when calculating tax liabilities in the other?

The appropriate professional should be selected according to the legal jurisdiction and tax issue involved. Turkish tax matters and U.S. federal tax matters may require separate but coordinated professional advice.

Turkish Tax Law Support for Cross-Border Businesses

For companies with Turkish tax obligations, obtaining advice on corporate taxation, withholding tax, tax residency, and cross-border transactions can help identify potential compliance issues before payments or business activities take place.

Nexpo Legal provides legal services relating to Turkish tax law, including corporate tax matters, tax compliance, and tax disputes.

If your business operates between Türkiye and the United States and requires guidance on Turkish tax law, you can learn more about our services through our Turkish tax lawyer practice.

Legal and Tax Disclaimer

The information provided in this guide is strictly for educational and informational purposes and does not constitute formal legal, tax, or accounting advice.

International tax regulations between the United States and the Republic of Turkey—especially concerning the Limitation on Benefits (LOB), Permanent Establishment, and corporate taxation—are highly intricate and subject to legislative and administrative changes. Do not make financial, corporate structuring, or compliance decisions based solely on this overview.

For personalized guidance on Turkish tax law matters arising from cross-border transactions, businesses may consult Nexpo Legal’s tax law team. Where U.S. federal tax advice is required, coordination with a qualified U.S. tax professional may also be necessary. The appropriate legal and tax approach depends on the company’s structure, income sources, treaty eligibility, and applicable domestic requirements.