Double Taxation Treaties in Turkey: 2026 Guide for HNWIs

For high-net-worth individuals, multinational corporations and family offices investing in Turkey, double taxation treaties (DTTs) are more than tax-administration formalities: they allocate taxing rights over cross-border income and limit how much each state may tax it. The Revenue Administration's list of treaties in force (status 23 April 2025) covers 93 partner states, including the United Kingdom, Germany, the United States, the Netherlands, the United Arab Emirates, Switzerland and Singapore. For foreign investors structuring inbound holdings, repatriating dividends or licensing intellectual property into Turkish entities, applying the right treaty correctly can materially change the combined tax burden.

This guide is written for the foreign investor, C-level executive, or family-office principal navigating Turkey's corporate and commercial law landscape who needs a precise, decision-grade view of how Turkey's double taxation treaties operate in 2026. We address the residency rules that determine treaty access, the treaty caps on withholding tax on dividends, interest, and royalties, the credit and exemption methods used to relieve double taxation, the procedural obligations under Turkish law to invoke a treaty, and recent developments, including the status of the Multilateral Instrument (MLI) and the Pillar Two rules in Turkish law. Our objective is to equip readers to make capital-allocation decisions with international-standard clarity inside the Turkish jurisdiction.

Key Takeaways

• The Revenue Administration lists 93 treaties in force (status 23 April 2025). Their dividend, interest and royalty articles limit the tax Turkey may withhold on payments to residents of the partner state, and the caps and conditions differ from treaty to treaty, so the specific text must be read.

• To obtain treaty treatment, a non-resident submits a residence certificate (mukimlik belgesi) from the competent authority of its state, with a Turkish translation certified by a notary or a Turkish consulate, to the tax office or the withholding agent; without it, domestic law applies. Tax withheld where the treaty prevented it can be reclaimed from the tax office within the correction limitation period unless the treaty provides otherwise (Double Taxation Treaties General Communiqué, Serial No. 4).

• As a residence state, Turkey relieves foreign tax mainly by credit: Corporate Tax Law (KVK) Article 33 allows foreign corporate taxes paid on foreign earnings to be deducted from Turkish corporate tax, up to the Turkish corporate tax on those earnings, and KVK Article 5(1)(b) separately exempts dividends from foreign subsidiaries that meet its conditions (among them a holding of at least 10% kept for at least one year and a tax burden of at least 15% in the subsidiary's country). The method the partner state applies is set out in the treaty's article on the elimination of double taxation.

• Turkey signed the Multilateral Instrument (MLI) on 7 June 2017 but has not deposited its instrument of ratification, so the MLI is not in force for Turkey and modifies none of its treaties — the Principal Purpose Test does not enter Turkey's treaty network through the MLI (OECD signatories and parties table, status 15 September 2026). Anti-abuse analysis therefore rests on each treaty's own wording and on Turkish domestic law.

• Under the Additional Articles added to the Corporate Tax Law by Law No. 7524, constituent entities of multinational groups whose consolidated revenue exceeded EUR 750 million in at least two of the four preceding fiscal years are subject to domestic and global minimum top-up corporate tax at a 15% minimum rate, for tax periods from 2024.

How Double Taxation Arises in Cross-Border Investment in Turkey

Double taxation arises whenever the same income is taxed in two jurisdictions on different bases — typically because one state taxes its residents on their worldwide income while the other taxes income arising within its borders. For a foreign investor receiving dividends from a Turkish subsidiary, interest from a Turkish bond, or royalties from a Turkish licensee, the income is sourced in Turkey and consequently subject to Turkish withholding tax under the Corporate Income Tax Law (Kurumlar Vergisi Kanunu, KVK) No. 5520 (Article 30 for corporate recipients). At the same time, the investor's home jurisdiction will generally tax that same income under its residency-based regime.

Without an applicable double taxation treaty, the combined burden can be heavy. KVK Article 30(3) provides for 15% withholding on dividends distributed to non-resident corporations, subject to the President's power under Article 30(8) to set a different rate, and the residence state may tax the same dividend again. The treaty mechanism either caps the source-state withholding (Turkey, in this scenario), grants a foreign tax credit in the residence state, or — in narrower circumstances — exempts the income there.

Residence and Source: The Two Pillars of Treaty Application

Every treaty analysis begins with two questions: (1) is the recipient a resident of a treaty partner within the meaning of the treaty's residence article, and (2) does the income fall under one of the treaty's distributive articles (dividends, interest, royalties, business profits, capital gains, employment income). The tie-breaker rules for persons resident in both states are set out in each treaty's residence article and differ between treaties; for individuals, treaties following the OECD Model use the sequence of permanent home, centre of vital interests, habitual abode and nationality. Investors structuring through Luxembourg, Dutch or UAE holding vehicles must be resident in those jurisdictions for treaty purposes and, where the relevant article requires it, the beneficial owner (gerçek lehdar) of the income before any treaty rate is available. The Turkish tax administration applies these treaty conditions together with domestic rules, including the substance-over-form rule in Tax Procedure Law Article 3(B) and the transfer pricing rules in KVK Article 13, rather than through the MLI's Principal Purpose Test, which does not apply to Turkey's treaties.

The Permanent Establishment Threshold

For MNCs operating in Turkey through agents, project sites, or service personnel, the permanent establishment (PE) concept under Article 5 of most Turkish DTTs is decisive. Crossing the PE threshold subjects business profits to Turkish corporate income tax (25% under KVK Article 32(1), and 30% for banks, financial and certain other companies listed in that provision). Liaison offices, short-term project deployments and service arrangements need to be checked against the PE definition in the specific treaty, with documentation and operational separation that support the position. Read more about cross-border corporate structuring in our Branch Office vs Subsidiary in Turkey strategic guide.

Withholding Tax Rates Under Turkish DTTs in 2026

For foreign investors, the most immediately consequential treaty provisions are the reduced withholding tax rates on passive income flowing from Turkey to the treaty partner. Below are the domestic rules and, as examples, the caps in the Turkey–United States and Turkey–Singapore treaties as published by the Revenue Administration — always verify the current text of the specific treaty, and any protocol amending it, before relying on these figures.

Dividend Withholding

KVK Article 30(3) sets the withholding on dividends distributed by Turkish resident companies to non-resident corporations at 15%; under Article 30(8) the President may set the rate differently, reduce it to zero or increase it up to double, so the rate in force on the distribution date must be checked. Treaty caps then apply as maxima. Under the Turkey–United States treaty, Article 10(2) caps Turkish tax at 15% where the beneficial owner is a company holding at least 10% of the voting stock of the paying company, and at 20% in all other cases. Under the Turkey–Singapore treaty the ceiling is 10% where the beneficial owner is a company (partnerships excluded) that holds directly at least 25% of the capital of the company paying the dividends, and 15% in all other cases (Article 10(2)). A word of caution on that treaty: the 7.5% figure that circulates in some summaries is not a dividend rate at all — it is the Article 11(2)(a) ceiling for interest received by a financial institution. The participation thresholds differ between treaties (10% of voting stock under the US treaty, 25% of capital held directly under the Singapore treaty), and a treaty cap never raises a lower domestic rate.

Interest Withholding

KVK Article 30(1)(ç) provides for withholding on interest and other income from movable capital paid to non-resident corporations at the 15% statutory rate, which the President may vary by type of income under Article 30(8), so the rate for the specific instrument must be checked. Treaty caps apply on top: the Turkey–United States treaty caps interest at 15%, and at 10% for interest on loans granted by financial institutions such as banks, savings institutions or insurance companies (Article 11(2)); the Turkey–Singapore treaty caps interest paid to a financial institution at 7.5% and other interest at 10% (Article 11(2)). Some treaties exempt interest paid to the other state's government or central bank (for example Article 11(3) of both treaties). Without a residence certificate, the withholding agent applies domestic law instead of the treaty.

Royalty Withholding

Royalties — including software licensing payments, trademark licensing fees and know-how transfers — are subject to withholding under KVK Article 30: under paragraph 1(c) where rights are let for use (treated as income from immovable capital under Income Tax Law Article 70) and under paragraph 2 where they are sold or transferred, at a 15% statutory rate that the President may vary under Article 30(8). Treaty caps apply as maxima: 10% under the Turkey–Singapore treaty (Article 12(2)), and 10% or 5% under the Turkey–United States treaty depending on the category of royalty defined in Article 12(3). Whether a payment is a royalty, a fee for services or the price of a product decides which article and which rate apply, so licensing agreements should state clearly what is being paid for.

Common questions about this topic

Does Turkey have a double taxation treaty with the United States?

Yes. The Turkey–United States treaty was signed on 28 March 1996 and has been in force since 19 December 1997, applying from 1 January 1998 (Revenue Administration list of treaties in force). Article 10(2) caps Turkish tax on dividends at 15% where the beneficial owner is a company holding at least 10% of the voting stock and at 20% in other cases; Article 11(2) caps interest at 15%, and at 10% for interest on loans granted by financial institutions such as banks, savings institutions or insurance companies; Article 12(2) caps royalties at 10% or 5% depending on the category. A US resident needs a residence certificate for the Turkish withholding agent to apply these caps.

Can a UAE-resident investor benefit from the Turkey–UAE treaty, and does the MLI affect it?

Yes, if the investor is resident in the UAE for treaty purposes, meets the conditions of the relevant article and submits a residence certificate. The Turkey–UAE treaty was signed on 29 January 1993 and is on the Revenue Administration's list of treaties in force; its rates and conditions should be read from its text. The MLI does not affect it: Turkey signed the MLI on 7 June 2017 but has not deposited an instrument of ratification, so no Principal Purpose Test reaches the treaty through that route. Scrutiny comes instead from the treaty's own conditions and from Turkish domestic rules such as the substance-over-form rule in Tax Procedure Law Article 3(B) and the transfer pricing rules in KVK Article 13. The UAE entity should be able to show real residence and activity in the UAE.

What is the difference between the credit method and the exemption method?

Under the credit method, the residence state taxes worldwide income but gives a credit for tax paid in the source state, usually capped at its own tax on that income. Under the exemption method, the foreign income is left out of the residence state's tax base. Which method the partner state applies is set out in the treaty's article on the elimination of double taxation, so it must be read in the specific treaty. On the Turkish side, KVK Article 33 allows foreign corporate taxes paid on foreign earnings included in Turkish results to be deducted from Turkish corporate tax, up to the amount produced by applying the Turkish corporate tax rate to those earnings; amounts that cannot be deducted in that period may be carried forward to the end of the third following period. KVK Article 5(1)(b) also exempts dividends from qualifying foreign subsidiaries.

How long does a Turkish withholding tax refund take?

No fixed processing period is set by the Tax Procedure Law or by the Revenue Administration's communiqué on treaty refunds. Where tax was withheld although the treaty required that the payment not be taxed in Turkey, the recipient, directly or through a representative, can apply to the relevant tax office for a refund within the correction limitation period unless the treaty contains a special rule; the application is made with a residence certificate and the form annexed to the communiqué and is concluded under domestic law (Double Taxation Treaties General Communiqué, Serial No. 4, section 5). Tax errors discovered after the five-year limitation period in Tax Procedure Law Article 114 can no longer be corrected (Article 126), so claims should not be left late.

Does Turkey tax capital gains realised by foreign investors on Turkish shares?

It depends on the capital gains article of the applicable treaty. Under the Turkey–United States treaty, for example, Article 13(5) gives the taxing right to the seller's state of residence but lets Turkey tax gains on shares or bonds issued by a Turkish company (other than those listed on a Turkish stock exchange) where the period between acquisition and disposal does not exceed one year, and Article 13(1) separately allows source-state taxation of gains on immovable property and on interests attributable to it. Other treaties allocate these gains differently, so the specific text must be read.

How does Pillar Two interact with Turkish tax incentives?

The Additional Articles added to the Corporate Tax Law by Law No. 7524 apply to constituent entities of multinational groups whose ultimate parent's consolidated revenue exceeded EUR 750 million in at least two of the four preceding fiscal years; the minimum tax rate is 15% (Additional Article 6), and the rules apply from the 2024 tax periods. Turkish incentives — including investment incentive certificates, free zone exemptions and sectoral reductions — that bring the Turkish effective rate below 15% may give rise to top-up tax, either in Turkey under the domestic minimum top-up corporate tax (yerel asgari tamamlayıcı kurumlar vergisi) or elsewhere under the global rules. Groups in scope should model the Turkish effective rate before relying on an incentive.

This guide is general information on Turkish law, not legal advice on your own matter. Rules and practice change; check the position before you act.