Learn the legal requirements for changing a ship’s flag in Turkey. Discover Turkish ship registration procedures, eligibility requirements, ship mortgages, inspections, certificates, tax considerations, and legal compliance in this comprehensive 2026 guide.

Changing a vessel’s flag—commonly referred to as re-flagging—is one of the most significant legal and commercial decisions a shipowner can make. Whether driven by a vessel sale, corporate restructuring, ship financing, tax planning, operational flexibility, or access to different shipping markets, changing a ship’s registry requires careful legal planning and compliance with both Turkish legislation and international maritime conventions.

A ship’s flag determines its nationality, the legal system governing the vessel, the authority responsible for issuing statutory certificates, and the flag State responsible for ensuring compliance with international maritime conventions such as SOLAS, MARPOL, STCW, and the Maritime Labour Convention (MLC 2006).

In Türkiye, the right to fly the Turkish flag and the registration of vessels are governed primarily by the Turkish Commercial Code No. 6102, the Ship Registry Regulation, and regulations administered by the Ministry of Transport and Infrastructure through the Harbour Master’s Offices and the Turkish Ship Registry.

This 2026 Updated Legal Guide explains the legal requirements for changing a ship’s flag in Turkey, the procedures applicable to foreign shipowners, and the practical legal issues that should be considered before starting the re-flagging process.

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What Is Re-Flagging?

Re-flagging is the legal process by which a vessel:

• Is removed from its existing ship registry.
• Registers under another country’s registry.
• Acquires the nationality of the new flag State.
• Becomes subject to the laws and maritime administration of the new registry.

This process affects not only registration but also certification, inspections, insurance, crewing, financing, and regulatory oversight.

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Why Do Shipowners Change a Ship’s Flag?

Common commercial reasons include:

• Sale of the vessel.
• Corporate restructuring.
• Ship financing.
• Registration of mortgages.
• Tax planning.
• Fleet restructuring.
• Bareboat charter arrangements.
• Access to preferential trading regimes.
• Compliance with commercial contracts.
• Operational efficiency.

Each transaction should be evaluated individually to determine the most suitable registration strategy.

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Can a Foreign Vessel Be Registered Under the Turkish Flag?

Yes.

A foreign-flagged vessel may be registered under the Turkish flag provided that it satisfies the statutory conditions established by Turkish law.

Among the principal requirements are:

• The vessel must be legally entitled to fly the Turkish flag.
• It must not remain permanently registered in another national registry at the time of Turkish registration.
• Registration documentation must comply with Turkish Ship Registry requirements.

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Eligibility to Fly the Turkish Flag

Under the Turkish Commercial Code, eligibility depends primarily upon ownership.

Generally:

Individual Ownership

The registered owner must satisfy the nationality requirements established by Turkish law.

Corporate Ownership

For corporate owners:

• The company must satisfy statutory ownership requirements.
• Turkish ownership thresholds generally apply.
• Management and board composition must comply with Turkish Commercial Code provisions governing Turkish-flag vessels.

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Removal from the Existing Registry

Before registration in the Turkish National Ship Registry, the vessel generally must:

• Be removed from the foreign registry.
• Obtain a Deletion Certificate.
• Confirm that no conflicting foreign registration remains.

Turkish law generally requires that a vessel not already be registered in another country’s permanent registry before it can be entered into the Turkish National Ship Registry.

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Turkish Ship Registry Options

Depending on the commercial structure, a vessel may be registered in:

Turkish National Ship Registry

The principal registry for vessels entitled to fly the Turkish flag.

Turkish International Ship Registry (TISR)

Designed for qualifying commercial vessels and offering a different legal and commercial framework.

The appropriate registry depends on the vessel’s ownership, intended operation, and applicable legislation.

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Documents Commonly Required

Although documentation varies according to the transaction, authorities commonly require:

• Application for registration.
• Bill of Sale.
• Deletion Certificate.
• Previous Certificate of Registry.
• Classification certificates.
• International Tonnage Certificate.
• Safety certificates.
• Evidence of ownership.
• Corporate registration documents.
• Identification documents of the owner.
• Mortgage documentation where applicable.

Incomplete documentation is one of the most common causes of registration delays.

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Technical Compliance Requirements

Before re-flagging, authorities may verify:

• Classification status.
• Statutory surveys.
• Tonnage measurements.
• Safety compliance.
• Hull identification.
• Technical documentation.
• Applicable inspection reports.

Certain vessels may require additional inspections before being accepted into the Turkish registry.

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Ship Mortgages

Existing financing arrangements require careful legal review.

Issues commonly include:

• Existing ship mortgages.
• Mortgage discharge.
• Registration of new mortgages.
• Recognition of foreign security interests.
• Bank consent.
• Financing agreements.

Mortgage issues should ideally be resolved before the registry transfer begins.

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Bareboat Charter Registration

In certain circumstances, Turkish law permits:

• Bareboat-in registration.
• Bareboat-out registration.

This allows operational use under another flag while ownership remains unchanged, subject to statutory conditions and regulatory approval.

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Statutory Certificates

Following re-flagging, certificates generally require:

• Reissuance.
• Endorsement.
• Revalidation.
• Updating to reflect the new flag State.

Certificates may include:

• Cargo Ship Safety Certificate.
• Load Line Certificate.
• MARPOL certificates.
• ISM Certificate.
• ISPS Certificate.
• Radio Licence.
• MLC Certificate.

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Classification Society Requirements

The classification society may need to:

• Transfer class records.
• Confirm continued class.
• Coordinate statutory surveys.
• Issue updated documentation.
• Assist with technical compliance.

Close coordination between the owner, flag administration, and classification society is essential.

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Crew and Manning Implications

Changing a vessel’s flag may affect:

• Safe Manning Certificate.
• Crew nationality requirements.
• Certificate endorsements.
• Employment agreements.
• Labour law compliance.
• MLC documentation.

Crew documentation should be reviewed before the vessel changes registry.

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Tax and Customs Considerations

Re-flagging may influence:

• VAT treatment.
• Customs procedures.
• Import status.
• Temporary admission.
• Corporate tax planning.
• Financing structures.

Legal and tax advice should be obtained before the transaction is completed.

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Insurance Considerations

Shipowners should notify:

• Hull & Machinery insurers.
• P&I Clubs.
• Mortgage lenders.
• Charterers where required.

Insurance policies frequently require notification before a change of registry becomes effective.

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Environmental Compliance

Changing a vessel’s flag does not eliminate obligations under international conventions.

The vessel must continue complying with:

• SOLAS.
• MARPOL.
• STCW.
• Maritime Labour Convention.
• Ballast Water Management Convention.
• Anti-Fouling Convention.

Compliance remains the responsibility of the new flag State.

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Common Legal Challenges

Shipowners frequently encounter:

• Delays obtaining deletion certificates.
• Mortgage registration complications.
• Ownership restructuring issues.
• Missing corporate documents.
• Classification coordination delays.
• Certificate reissuance delays.
• Financing restrictions.
• Port State Control concerns during transition.

Early legal planning significantly reduces these risks.

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Best Practices Before Re-Flagging

Before changing a ship’s flag:

• Conduct full legal due diligence.
• Verify eligibility for Turkish registration.
• Review corporate ownership.
• Confirm mortgage arrangements.
• Coordinate with the classification society.
• Review insurance obligations.
• Notify the P&I Club.
• Prepare all registry documentation.
• Obtain experienced Turkish maritime legal advice.

Preparation minimizes delays and protects commercial operations.

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Why Professional Legal Assistance Is Essential

Ship re-flagging requires expertise in:

• Turkish Commercial Code.
• Ship Registry legislation.
• Maritime finance.
• Ship mortgages.
• International maritime conventions.
• Port State Control.
• Marine insurance.
• Maritime transactions.

An experienced Turkish maritime lawyer can:

• Assess eligibility for Turkish registration.
• Coordinate registry applications.
• Review ownership structures.
• Resolve mortgage issues.
• Liaise with Harbour Master’s Offices.
• Coordinate with classification societies.
• Ensure compliance with Turkish law.
• Minimize transactional delays.

Professional legal guidance helps ensure that the vessel’s transition to or from the Turkish flag is completed efficiently and in full compliance with applicable legal requirements.

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Frequently Asked Questions

1. Can a foreign-flagged ship be registered under the Turkish flag?

Yes. A foreign vessel may be registered under the Turkish flag if it satisfies the ownership, registration, and technical requirements established by Turkish law.

2. Can a vessel remain registered in two permanent national registries?

Generally, no. To be entered into the Turkish National Ship Registry, a vessel must not already be permanently registered in a foreign registry.

3. Is a deletion certificate required?

Yes. In most re-flagging transactions, a deletion certificate from the previous registry is an essential document for Turkish registration.

4. What happens to existing ship mortgages?

Existing mortgages should be reviewed carefully. Depending on the financing arrangements, they may need to be discharged, amended, or re-registered.

5. Will statutory certificates need to be reissued?

Yes. Many statutory certificates must be reissued, endorsed, or updated after a change of flag.

6. Does re-flagging affect the crew?

Potentially. Manning requirements, crew certifications, and labour documentation may need to be updated to comply with the requirements of the new flag State.

7. Will the vessel still be subject to Port State Control inspections?

Yes. Regardless of its flag, the vessel remains subject to Port State Control inspections whenever it enters foreign ports.

8. Why should shipowners hire a Turkish maritime lawyer?

A Turkish maritime lawyer can manage the entire re-flagging process, prepare registry documentation, coordinate with Turkish authorities and classification societies, resolve mortgage and financing issues, ensure compliance with Turkish law, and help complete the transaction efficiently.

Legal Support – Contact Our Maritime and Ship Registration Lawyers

Changing a ship’s flag is a complex legal transaction involving registry authorities, classification societies, lenders, insurers, and maritime regulators. Proper legal planning can prevent costly delays, protect financing arrangements, and ensure uninterrupted commercial operations.

Fırat Fesih Kaya and our legal team advise shipowners, ship managers, investors, banks, P&I Clubs, marine insurers, offshore operators, and international shipping companies on ship registration, vessel re-flagging, Turkish ship registry applications, maritime finance, ship mortgages, bareboat registrations, maritime litigation, international arbitration, and all aspects of Turkish maritime and commercial law.

24/7 Emergency Phone: +90 532 769 22 22

Office Phone: +90 312 434 22 22

Email: info@firatfesihkaya.av.tr

Address: Mevlana Boulevard No:221, Yıldırım Tower, Office No:148, 06520 Balgat, Çankaya, Ankara, Turkey