If you are an American living in Turkey, you have probably already discovered that Turkish tax season and US tax season do not politely take turns. The Revenue Administration, known in Turkish as the Gelir Idaresi Baskanligi, expects a return from Turkish tax residents, and the IRS expects a return from every US citizen and green card holder regardless of where they live or earn their money. Add a currency that has moved sharply against the dollar in recent years, and it is easy to end up confused about what actually has to be reported, what can be excluded, and what triggers a penalty if you get it wrong.
Do US Citizens Living in Turkey Have to File Both Turkish and US Tax Returns?
Yes, in most cases you will have obligations on both sides. Turkey determines your tax residency using tests such as spending 183 days or more in Turkey in a calendar year or maintaining a legal residence there, and once you are a Turkish tax resident you are generally taxed by the Revenue Administration on your worldwide income, the same way the IRS taxes US citizens.
The US side of this is not optional and it does not depend on how long you have lived abroad, whether you hold a Turkish residence permit, or whether you already paid Turkish tax on the same income. Citizenship and green card status alone create the US filing requirement. If your income exceeds the applicable US filing threshold for your status, you file a Form 1040 and report all of it, wages, self-employment income, rental income, investment income, and anything else, converted into US dollars.
The good news is that the US tax code has mechanisms built specifically to prevent you from paying full tax twice on the same income. The two main tools are the Foreign Earned Income Exclusion and the Foreign Tax Credit, and choosing between them is usually the single biggest decision in an expat's US return.
Should You Claim the FEIE or the Foreign Tax Credit on Turkish Income?
For most Americans working as employees in Turkey, the Foreign Tax Credit tends to produce a better result because Turkish income tax rates on middle and upper incomes are generally high enough to fully offset the corresponding US tax liability, sometimes leaving unused credit to carry forward. The FEIE, by contrast, is often the better choice for self-employed individuals or those whose Turkish tax bill is comparatively light relative to their income.
Salaries paid in Turkish lira rarely push a household anywhere near the FEIE ceiling once converted to dollars, so the exclusion, claimed on Form 2555 under Internal Revenue Code Section 911, tends to cover the entire wage or self-employment paycheck for an American working locally, with room to spare under the annually adjusted cap of $130,000 for the 2025 tax year. What the FEIE will not touch is income that is not a paycheck. An American who excludes salary from a Turkish employer but also rents out an apartment in Istanbul or Izmir cannot exclude that rental income the same way, since the FEIE covers only wages and self-employment earnings, not investment income, rental income, or pensions. Self-employment tax is another blind spot: excluding income from regular US tax does not touch the 15.3 percent self-employment tax, and excluded wages also drop out of the earned income figure the refundable Child Tax Credit depends on. Revoking the election is a five-year commitment, since re-electing sooner requires IRS consent.
The Foreign Tax Credit, claimed on Form 1116 under Internal Revenue Code Sections 901 and 904, works differently. Instead of excluding income, you claim a dollar-for-dollar credit against US tax for foreign income tax you actually paid or accrued to Turkey, computed separately by income category, or basket, such as general category and passive category income. Unlike the FEIE, the FTC applies to both earned and unearned income, including Turkish-source interest, dividends, and rental income. If your Turkish tax paid exceeds the US tax on that same income, the excess credit carries over rather than disappearing (see the table below for the exact carryback and carryforward window).
Many US expats in Turkey end up using a combination, claiming the FTC on categories where Turkish tax is high and reserving the FEIE for income streams where it produces a cleaner result. This is exactly the kind of comparison that benefits from running both scenarios rather than guessing. Our FEIE versus Foreign Tax Credit comparison walks through the tradeoffs in more depth.
What Does the US-Turkey Tax Treaty Do for Double Taxation?
The United States and Turkey signed an income tax treaty in 1996 that took effect January 1, 1998, and it remains in force today. Like most US tax treaties, it includes provisions addressing which country has primary taxing rights over specific categories of income and tie-breaker rules for individuals who could otherwise be considered tax residents of both countries at once.
The catch is the saving clause buried in the treaty text, a standard feature in US tax treaties that lets the United States keep taxing its own citizens and green card holders as though the treaty were not there. Practically speaking, a US citizen settled in Turkey cannot lean on the treaty to shield Turkish-source income from the IRS the way a non-citizen Turkish resident could, and it is the FEIE and FTC, not treaty articles, that do the actual work of preventing double tax for most Americans there. The one carve-out worth knowing is that certain government pensions, students, and specific categories of business income keep meaningful treaty protection even with the saving clause in place. If you claim a treaty-based position that overrides normal US tax treatment, Form 8833 disclosure is generally required, and our treaty benefits and Form 8833 guide explains when that applies.
Does Social Security Coverage Work the Same Way for Americans in Turkey?
Unlike many countries with US tax treaties, Turkey and the United States do not have a totalization agreement. Totalization agreements exist specifically to prevent workers from paying into two countries' social security systems on the same earnings and to help preserve credit toward benefits in both systems. Without one, a self-employed American working in Turkey and covered under Turkey's SGK system can end up owing US self-employment tax and Turkish social security contributions on the same income, with no coordination between the two. Employees may be affected differently depending on how their employer classifies and withholds, but the absence of a totalization agreement means this needs individual review rather than an assumption that one system covers you. Our guide on totalization agreements and self-employment tax abroad explains how this works in countries where an agreement does exist, which helps illustrate exactly what Turkey is missing.
Are Turkish Investment Funds Taxed as PFICs?
Generally yes, and this catches a lot of Americans off guard because these funds are marketed in Turkey as an ordinary savings tool. The yatirim fonlari sold through Turkish banks and brokerage apps, along with other pooled Turkish funds, typically meet the definition of a passive foreign investment company under Internal Revenue Code Section 1297 based on how much passive income or passive assets the fund holds. Once a fund crosses that line, Sections 1291 and 1298 impose a default excess-distribution regime built to be punishing, taxing gains and certain distributions at the highest ordinary rates plus an interest charge that treats the deferral as if it had been running the whole time. Each fund you hold needs its own Form 8621, filed regardless of whether that particular fund gained or lost value during the year, and in many cases regardless of the dollar amount involved. A QEF election or mark-to-market election can sometimes soften the excess-distribution hit, but those elections generally need to be made in the first year you hold the fund to matter. Our PFIC and Form 8621 guide covers how the excess-distribution calculation works and what the election options look like.
How Are Turkish Pensions and Retirement Accounts Taxed by the US?
A common assumption among Americans paying into SGK, Turkey's social security and pension system, is that a contribution treated as tax-favored in Turkey must get the same treatment on a US return. It does not work that way. Under the general rule found in Internal Revenue Code Sections 401(a) and 402(b), a foreign retirement plan that is not a qualified US plan is typically taxed on contributions and growth as the value accrues, whether the plan is SGK itself or an employer-sponsored arrangement layered on top of it, unless a specific treaty provision changes that result.
Whether the US-Turkey treaty provides any deferral for a particular Turkish pension depends on the plan's structure and the treaty's specific pension article, which means this is not a blanket answer. Government pensions, private employer pensions, and personal retirement products can all be treated differently. Each plan needs to be reviewed individually rather than assumed to follow the same rule as a 401(k) or an IRA. Our foreign pension US tax treatment guide walks through the analysis framework used to evaluate a specific plan.
What Happens to Foreign Currency Gains When the Lira Moves?
The Turkish lira has experienced substantial inflation and devaluation against the dollar in recent years, and that currency movement creates US tax consequences that many expats do not anticipate. Every item of foreign income, deduction, and foreign tax paid must be converted into US dollars using an appropriate exchange rate for US tax reporting, so a swing in the lira can change your US tax result even when nothing about your actual Turkish income changed.
One specific quirk worth knowing about is Internal Revenue Code Section 988, which can produce a foreign currency gain or loss on transactions denominated in a foreign currency, including repaying a lira-denominated mortgage or loan. If the lira weakens between the time you took on the debt and the time you repay it, the repayment in weaker lira can generate a reportable foreign currency gain on your US return, separate from any gain or loss on the underlying property. The treatment is asymmetric: if the lira instead strengthens against the dollar, the matching currency loss on a personal-use mortgage is a nondeductible personal loss, so only the gain side ever reaches your return. This is a narrow but real trap for Americans with Turkish mortgages or loans, and it is worth flagging to your preparer rather than discovering it after the fact.
What Foreign Accounts and Assets Must You Report?
Beyond your income tax return, US citizens with financial interests in or signature authority over foreign accounts carry a separate reporting obligation that applies whether or not any tax is owed. Many Americans in Turkey split savings across a Turkish lira account and a foreign-currency or gold deposit account to hedge inflation, and it is that combination, not any single account, that most often pushes the aggregate over the line. If the combined value of your foreign financial accounts, including Turkish bank and brokerage accounts, topped $10,000 at any point during the year, an FBAR, FinCEN Form 114, is due to the Treasury Department. This is a hard numerical trigger with real penalties for missing it, and our FBAR filing guide explains the mechanics and deadlines.
Form 8938 under FATCA runs on a different, generally higher set of thresholds tied to filing status and whether you live in the US or abroad, and it reaches a wider range of foreign financial assets than the FBAR does. The two forms do not move together. You can owe both in the same year, either one without the other, or neither, so each has to be checked against its own threshold rather than assumed from the other. Our Form 8938 filing guide breaks down which assets count and what the specific dollar thresholds are for your situation.
Bottom Line
The biggest trap for Americans in Turkey is not a form, it is the assumption that something taxed favorably or not at all locally, an SGK pension, a lira mortgage repaid in weaker currency, a bank fund sold at a Turkish branch, is settled for US purposes too. It is not. Turkish tax residency determines what the Revenue Administration expects from you, while US citizenship or green card status alone determines what the IRS expects, regardless of where you live, and the two systems run on entirely separate rules. The Foreign Tax Credit is often the stronger tool for Americans facing Turkey's generally high income tax rates, while the FEIE tends to suit self-employed expats or lighter-taxed income streams better, and many people end up using both across different income categories. The US-Turkey tax treaty is in force but its saving clause limits how much it directly shields a US citizen, there is no totalization agreement to coordinate social security taxes, Turkish mutual funds are typically PFICs requiring careful Form 8621 handling, and Turkish pensions need plan-by-plan analysis rather than an assumption of automatic deferral. None of this is optional paperwork. FBAR and Form 8938 apply on their own thresholds regardless of whether you owe any US tax at all, and getting the FEIE versus FTC decision wrong can mean overpaying the IRS for years.
Have questions about US expat taxes in Turkey? Contact TS CPA for a free consultation. We respond within the same day.