The Turkish Citizenship Law is primarily based on the principle of ius sanguinis with provisions in the Law for stateless children in Article 8 (1). One may acquire citizenship by means of descent in Turkey or abroad by establishing that at least one parent holds Turkish citizenship whether born inside or outside of wedlock.
Citizenship can be acquired after birth either by a decision of the competent authority or by adoption. Individuals may submit an application for citizenship should they satisfy the conditions laid down in Article 11 (1). Citizenship by marriage is not applied automatically; the applicant must fulfil the conditions in Article 16 (1) to apply for citizenship, including at least 3 years of marriage. Recently, Turkey amended its immigration laws to allow the grant of citizenship through an updated citizenship by investment program. By either investing the equivalent of USD 250,000 in real estate or USD 500,000 in financial assets, one may acquire citizenship through the Exceptional Acquisition of Citizenship provision outlined in in the Official Gazette published on September 18, 2018.
Turkey allows dual and multiple citizenship, however, a Turkish citizen acquiring citizenship of a foreign state for any reason whatsoever must disclose this information to the Turkish authorities. Those that hold multiple citizenship shall be put down in their records in the civil registration office. Foreign individuals are required to disclose their original citizenship before applying for Turkish citizenship.