The Turkey-U.S. Income Tax Treaty and Its Saving Clause

The United States and Turkey signed the convention and protocol in Washington on March 28, 1996. The Senate gave advice and consent on October 31, 1997, the treaty entered into force on December 19, 1997, and it generally took effect on January 1, 1998. It runs to 29 articles in a conventional OECD-style structure, and no later protocol has amended it.

So the threshold question is easy: yes, there is a treaty, and it is in force. The harder question is who it actually helps.

Article 1(3) lets each country tax its own residents, and lets the United States tax its citizens, as if the treaty had never come into effect. It reaches current citizens and, under the treaty text, certain former citizens who gave up citizenship with tax avoidance as a principal purpose.

The carveout in article 1(4) is short. It preserves article 9(2) on correlative adjustments, article 18(2) on social security, article 23 on relief from double taxation, article 24 on nondiscrimination, and article 25 on the mutual agreement procedure. For individuals who hold neither citizenship nor immigrant status in the taxing state, it also preserves the government service, student and teacher, and diplomatic rules in articles 19, 20, and 27.

Everything else stays exposed to citizenship-based taxation. The dividend, interest, royalty, and capital gains articles are not on the saved list. Neither are the personal services articles, nor article 18(1) on private pensions. For a U.S. citizen, the rate caps that make the treaty attractive on paper generally do not control the U.S. result.

Article 23 requires the United States to credit Turkish income tax against U.S. tax on the same income, within the limits of U.S. law. Treasury's technical explanation acknowledges that applying the saving clause here would leave the article with no content at all.

Article 18(2) assigns social security payments to the source state, which means a benefit from the Turkish Social Security Institution stays outside the U.S. net. It is an allocation rule, not merely a credit.

Even the credit has rough edges: the protocol limits it against the alternative minimum tax, creditability still turns on the foreign tax credit regulations, and excess credits run into the section 904 limitation, separate category rules, and the carryover regime. A client whose Turkish-source income is mostly passive can accumulate passive category credits with little current U.S. tax to absorb them.

The treaty offers no relief from information reporting. It does not excuse a U.S. person from the FBAR, from Form 8938 under section 6038D, or from the PFIC regime, each of which carries its own thresholds and penalties. Turkey signed a reciprocal model 1A FATCA agreement in 2015 that entered into force on June 14, 2021, so Turkish institutions now report U.S. account data to the IRS. The enforcement exposure is not theoretical.

Two absences catch clients out because they assume the opposite. There is no Turkey-U.S. totalization agreement, so a self-employed U.S. citizen resident in Turkey can face U.S. self-employment tax under section 1401 on top of Turkish social security obligations. And there is no Turkey-U.S. estate or gift tax treaty, so a Turkish American estate has to fall back on unilateral relief such as the foreign death tax credit.

Because the treaty gives a dual citizen little beyond the credit and the social security rule, most of the planning that matters is domestic. The recurring annual decision is between the foreign earned income exclusion ($130,000 for 2025, $132,900 for 2026) and the foreign tax credit, which cannot both cover the same income. The right answer turns on the Turkish effective rate, the U.S. marginal rate, housing and family circumstances, and whether excess credits will ever be usable.