Does Turkey Allow Dual Citizenship? The 2026 Guide for New Citizens and Dual Nationals

Turkey's position: permitted in both directions

Start with the direction that matters to most readers of this site: into Turkish citizenship. Nothing in the Turkish Citizenship Law No. 5901 requires a foreigner acquiring Turkish citizenship — by investment, by marriage, by ordinary naturalisation — to renounce an existing citizenship. Renunciation is not among the statutory conditions, no undertaking to renounce is taken, and in practice the overwhelming majority of new Turkish citizens keep the passport they arrived with. Whether their original country lets them keep it is that country's business, which is the subject of the next section — but Turkey asks for no sacrifice.

Now the other direction: out of a Turkish passport into an additional one. A Turkish citizen who acquires a foreign citizenship does not lose Turkish citizenship by doing so. Voluntary acquisition of another nationality appears nowhere in the law's loss provisions; what the statute provides instead is bookkeeping. Under Article 44 of Law No. 5901, a person who acquires a foreign state's citizenship for any reason submits the documents evidencing it, and — once the records confirm the identity — an annotation is entered in the civil registry that the person holds multiple citizenship. Turkey's system, in short, is not tolerance by silence; it is recognition by registration.

The registration duty nobody told you about

Article 44 is the provision most dual nationals have never met. The mechanics are simple: the notification is made in writing — in Turkey to the civil registry office (nüfus müdürlüğü) of your place of residence, abroad to the Turkish consulate — together with the documents proving the foreign citizenship, typically the naturalisation certificate or the foreign passport. If the identity details match the Turkish records, the multiple-citizenship annotation is entered; if they do not match, the request is refused until the records are reconciled.

That last clause is where files actually stall, and it is worth a paragraph of its own. Names diverge between countries with surprising ease — a transliterated surname, a middle name dropped by one system, a married name adopted abroad but never processed in Turkey. The Turkish registry will not annotate multiple citizenship onto records it cannot confidently match, so the sequencing in practice is: align the identity records first, then register the status. Foreign documents enter this process apostilled or consular-legalised and sworn-translated — and because a translation that renders a name inconsistently creates precisely the mismatch the registry rejects, this is one of the places where producing the legal review and the certified translation together earns its keep.

Why bother registering at all? Because the annotation is what makes the dual status legible to the Turkish state: it keeps the civil record accurate, it prevents downstream confusion in matters from inheritance to military records, and it spares you explaining your second passport from scratch at every official counter for the rest of your life.

The other half of the question: your home country's rules

Turkey's permission is only half the licence. The other half belongs to the state whose passport you already hold, and here the world divides. A large group of countries — the United States, the United Kingdom, Canada, Russia among them — tolerate dual citizenship without formality. Germany, the origin of Turkey's largest dual-national community, joined that group with the reform of its nationality law in force since June 2024: naturalisation in Germany no longer demands renunciation, and Germans naturalising abroad no longer forfeit German citizenship — a change whose practical weight for German-Turkish families is hard to overstate, and which we cover from the residence side in our German citizens' guide.

Other states remain restrictive. The Netherlands, as a rule, still expects renunciation on naturalisation, subject to exceptions — the spouse of a Dutch national among them — mapped in our Dutch citizens' guide. And a further group of countries simply does not recognise a second citizenship or attaches serious consequences to acquiring one. The discipline we urge on every client is the same: before pursuing Turkish citizenship, obtain a current answer on your own country's law from a source qualified in that law. Turkey will not take your first passport from you; but Turkey also cannot protect it.

Living with two passports: the Turkish practicalities

Inside Turkey, a dual national is a Turkish citizen, full stop. That principle drives the practicalities. At the Turkish border, enter and leave as a Turk — on the Turkish passport or identity card; the foreign passport is for the other country's border and for third countries, whichever serves better. In dealings with Turkish authorities — title deeds, banks, courts, the tax office — the Turkish identity number is your identity, and keeping the two countries' records consistent (names, marital status, addresses) is the quiet maintenance work that prevents loud problems later.

Two Turkish-specific consequences deserve their own mention. Military service attaches to male Turkish citizens regardless of the second passport — the 22-year rule for naturalised citizens, the deferral until 35 for those living abroad, and the paid routes are all covered in our military service guide, which every male dual national should read once. And taxation attaches to residence, not to the passport: holding Turkish citizenship neither makes you a Turkish taxpayer nor shields you from becoming one — residence does both, and new residents should look at the twenty-year foreign-income exemption before assuming the move is expensive.

Can Turkey take citizenship away from a dual national?

The grounds on which Turkish citizenship can be involuntarily stripped are narrow, listed in Article 29 of Law No. 5901, and — the point that reassures most readers — acquiring another citizenship is not among them. The listed grounds concern conduct in the service of foreign states: persisting in a foreign state's service incompatible with Turkey's interests after a formal warning; continuing to serve a state at war with Turkey without authorisation; and one ground that dual nationals in particular should know exists — voluntarily performing military service for a foreign state without permission.

That last item needs the distinction drawn carefully, because it sits next to a rule that points the other way. Compulsory military service performed abroad — the conscription a dual national owes the other country by its law — is not the target; Turkish law elsewhere accommodates and even credits it. What Article 29 reaches is voluntary enlistment in a foreign force without Turkish permission. A dual national considering signing up for another country's armed forces, in any capacity, should treat that as a decision requiring Turkish legal advice first, not after.

Deprivation on these grounds is exceptional, made by presidential decision, and reviewable. For the ordinary dual national — working, investing, raising a family across two countries — none of it is part of daily life. It is on this page because completeness on this subject is the point of this page.

When the other country says no: renunciation and the Blue Card

Some readers face the mirror problem: their home country's law forces a choice, and for family, career or inheritance reasons they choose the other passport. Turkish law provides a civilised exit. Under Article 25 of Law No. 5901, a Turkish citizen may renounce by permission — a formal application, granted by decision, that ends the citizenship in an orderly way.

What makes the Turkish exit unusual is what remains afterwards. Persons who were Turkish citizens by birth and lost citizenship by renunciation permission hold, under Article 28, a bundle of rights that keeps their Turkish life largely intact: they may reside and work in Turkey, acquire and inherit property, and generally transact as if citizens — with the political core carved out: no vote, no public office, no military obligation. The status is evidenced by the Blue Card (Mavi Kart). For families navigating a restrictive home-country statute, the Blue Card is frequently the answer that dissolves the dilemma: the passport goes, the life stays.

The route runs the other way too, and estate planners use it: a Blue Card holder — or their descendants — can later re-acquire Turkish citizenship through the reacquisition provisions, which is one more reason the identity records discussed above are worth keeping immaculate across generations.

Children born into two citizenships

For families, the cleanest news on this page: a child born to a Turkish citizen parent — in Turkey or abroad, mother or father — is a Turkish citizen from birth by descent under Law No. 5901, and whatever citizenship the other parent or the birthplace confers stacks on top by that country's law. Turkish law imposes no election in adulthood; the child does not have to choose at eighteen or ever. The administrative task is the familiar one — register the birth with the Turkish registry or consulate so the Turkish record exists, with the foreign birth certificate apostilled and sworn-translated — and the strategic note for parents of sons is the military service guide already mentioned.

A short checklist for the two commonest situations

For the foreigner about to acquire Turkish citizenship: confirm your home country's current position with a qualified source there; expect no renunciation demand from Turkey; after the Turkish decision, update your records on both sides — and if you are male, read the military service rules once, calmly, before rumours read them to you.

For the Turkish citizen acquiring a second passport: your Turkish citizenship survives automatically; register the new status under Article 44 through the registry or consulate with translated documents; keep entering Turkey on your Turkish documents; and if the second country's forces ever feature in your plans, take advice before enlisting, not after.

Frequently Asked Questions

Does Turkey allow dual citizenship? Yes, in both directions. Acquiring Turkish citizenship does not require renouncing your existing one, and a Turkish citizen who acquires a foreign citizenship does not lose Turkish citizenship — the status is registered under Article 44 of Law No. 5901.

Will Turkey make me give up my passport when I naturalise? No. Renunciation is not among the conditions of Turkish naturalisation by investment, marriage or residence. Whether your home country permits you to keep its passport is a question of that country's law.

I'm a Turkish citizen and just acquired another citizenship. Do I have to tell Turkey? Yes — the status should be registered. You notify the civil registry office in Turkey or a Turkish consulate abroad in writing, with the documents proving the foreign citizenship, and a multiple-citizenship annotation is entered in your records.

What documents does the Article 44 registration need? The foreign naturalisation certificate or passport, legalised for use in Turkey and sworn-translated, with identity details that match your Turkish records. Name mismatches between the two countries' records are the most common obstacle and should be reconciled first.

Did Germany's 2024 reform change things for German-Turkish dual nationals? Substantially. Since the reform in force from June 2024, German law generally permits multiple citizenship — naturalising in Germany no longer requires renunciation, and Germans naturalising elsewhere no longer forfeit German citizenship.

My home country forbids dual citizenship. What are my options? Either forgo Turkish citizenship and live on residence permits, or — for Turkish citizens forced to choose the other way — renounce Turkish citizenship by permission under Article 25 and keep near-citizen rights in Turkey through the Article 28 Blue Card.

What rights does the Blue Card give? Birth citizens who renounced by permission may reside and work in Turkey, acquire and inherit property, and generally transact like citizens — excluding voting, public office and military obligations.

Can Turkey strip a dual national's citizenship? Only on the narrow grounds of Article 29, which concern service to foreign states — including voluntarily serving in a foreign military without permission. Acquiring another citizenship is not a ground.

Is doing my compulsory military service abroad a problem? No — compulsory service owed to the other country under its law is not the Article 29 target, and Turkish law elsewhere credits documented foreign service. Voluntary enlistment in a foreign force without permission is the conduct to avoid.

Which passport do I use at the Turkish border? Your Turkish passport or identity card. Inside Turkey a dual national is treated as a Turkish citizen; the foreign passport serves the other country and third states.

Are my children automatically dual citizens? A child of a Turkish citizen parent is Turkish by descent from birth, wherever born; the other citizenship stacks by that country's law. Turkish law never requires the child to choose. Register the birth with the Turkish registry or consulate.

Does holding two passports change my taxes in Turkey? No — Turkish taxation follows residence, not citizenship. Moving to Turkey is what creates tax residence, and new residents should review the twenty-year foreign-income exemption introduced in 2026.