Acquiring another nationality as a Turkish citizen: how to register it

When a Turkish citizen acquires another nationality, civil records need attention too. Understand acquisition-date evidence, identity matching and the receiving mission’s requirements.

Türkiye

4 November 2026, 07:12 UTC+0

Evidence relationships, not automatic registration or a processing timeline. Follow the responsible consular post’s checklist.

Sources: [1] · [2] · [3] · [4] · [5] · [6]Checked: 4 November 2026

A Turkish citizen who later acquires another nationality should address the corresponding entry in Türkiye’s civil records. The Boston consulate’s 2026 guidance describes an application in which evidence of US citizenship is examined before a multiple-citizenship annotation is added to the family register.[1]

The purpose is to record an existing nationality fact. This article concerns someone who is already Turkish and subsequently acquires another nationality. Whether the other country permits retention of existing citizenship is a separate question under that country’s law.

Establish the date and connect the identities

Article 44 of Law No. 5901, as adopted in 2009, describes documentary evidence of foreign citizenship and a check that the records identify the same person. The parliamentary text is an historical enactment record; current consular instructions remain important for an actual application.[5]

Rome’s guidance identifies evidence showing when Italian nationality was acquired, alongside Turkish identity information and the application form. Boston’s 2026 instructions specifically request a name-change document where the applicant changed their name during US naturalisation.[4][1]

These requirements address different questions. Acquisition-date evidence establishes when the nationality fact arose. Identity and name-change evidence connect the records. A practical filing system should preserve both, rather than retaining only the identification page of a new passport.

Use the mission responsible for your residence

The Foreign Ministry’s consular portal lists multiple-citizenship registration as a separate procedure requiring an appointment and personal attendance. Boston also requires a separate appointment for each application, booked through the consular system rather than by telephone or email.[3][6]

Local document instructions matter. Deventer’s January 2026 notice concerns its Netherlands consular district. It calls for evidence of the date Dutch nationality was acquired, Dutch and Turkish identification, and municipal documents no more than six months old. It also says a Turkish translation is unnecessary for that procedure.[2]

That last point is not a worldwide translation exemption. An applicant elsewhere should check the receiving mission’s rules on language, originals, copies, authentication and attendance. A fee or submission method published for one post should not be transferred to another without confirmation.

Review each family member separately

Boston’s guidance requires family members older than 18 to prepare their own documents and identifies supporting records for children who acquire US citizenship with a parent. Its wording does not clearly address someone who is exactly 18, so an applicant at that age should confirm the requirement with the consulate.[1]

A shared preparation checklist is useful, but it does not establish that one person’s completed registration updates everyone else’s record. Before booking, list each family member’s method and date of acquiring citizenship, present name and available identity documents. Ask the receiving post to confirm the individual requirements.

Keep evidence of the outcome

Retain the submitted-document list and receipt, and ask how completion can be checked. If names, birth details or dates differ between records, explain the discrepancy and provide its supporting evidence rather than altering an original document.

Multiple-citizenship registration, birth registration, name-equivalence evidence and a passport application serve different purposes. Identifying the particular record that needs attention is the first step towards choosing the correct official procedure.

Official sources

General policy information. Individual circumstances and the competent authority’s requirements govern each application.