Ultimate Beneficial Owner (UBO) Risks in Turkish Maritime Transactions – 2026 Updated Guide

Learn the 2026 UBO risks in Turkish maritime transactions, including ship sales, financing, sanctions, vessel ownership, charterparties, asset freezing, insurance, nominee structures, and beneficial ownership due diligence.

Ultimate beneficial ownership has become a critical legal and compliance issue in international shipping. A vessel may be registered in the name of a single-purpose shipowning company, while the individuals who ultimately own or control that company remain several corporate layers behind the registered owner.

For foreign shipowners, investors, banks, charterers, ship managers, insurers, cargo interests, and companies conducting maritime transactions in Turkey, identifying the Ultimate Beneficial Owner (UBO) can therefore be essential.

The issue goes far beyond corporate administration.

Incorrect, incomplete, outdated, or deliberately concealed beneficial ownership information can create sanctions exposure, financing problems, transaction delays, tax compliance risks, insurance disputes, asset-freezing concerns, contractual liability, and potentially regulatory or criminal investigations.

Turkey also has a formal beneficial ownership reporting framework. Under General Communiqué No. 529 on the Tax Procedure Law, beneficial ownership generally means the natural person or persons who ultimately control or exercise ultimate influence over a legal entity or unincorporated organization. For legal entities, the rules initially look to natural persons holding more than 25% of the entity, but the analysis does not necessarily end there if those persons are not the true beneficial owners or no individual exceeds that threshold. (Gelir İdaresi Başkanlığı)

For maritime transactions in 2026, determining the UBO should therefore be treated as a substantive legal due-diligence exercise rather than a box-ticking formality.

What Is an Ultimate Beneficial Owner in a Maritime Transaction?

The UBO should be distinguished from the vessel’s registered owner.

Consider the following structure:

Vessel → Single-Purpose Shipowning Company → Offshore Holding Company → Investment Company → Individual Owner

The company recorded in the ship registry may be the first company in this chain.

The UBO analysis attempts to determine which natural person or persons ultimately own or control the structure.

This distinction is particularly important because modern maritime transactions frequently use single-purpose companies for vessel ownership.

Such structures are normal and lawful. However, they can become problematic where corporate layers are used to obscure the identity of the actual controlling person.

Turkey’s UBO Rules: The 25% Threshold Is Only the Starting Point

Turkey’s beneficial ownership framework contains an important rule that international maritime businesses should understand.

Under General Communiqué No. 529, for legal entities, natural persons holding more than 25% of the shares are initially considered when identifying the beneficial owner.

However, the analysis goes further.

If there is doubt that a natural person holding more than 25% is actually the beneficial owner, or if no natural person exceeds the threshold, the person or persons ultimately exercising control over the legal entity must be identified. (Gelir İdaresi Başkanlığı)

This is particularly significant for shipping structures.

Dividing ownership among several entities or shareholders does not necessarily eliminate the need to identify the person who actually controls the company.

1. UBO Risks in Ship Sale and Purchase Transactions

A vessel acquisition can involve millions of dollars and several jurisdictions.

Before purchasing a vessel connected with Turkey, the buyer should investigate not only the registered owner but also the corporate ownership structure behind the seller.

The buyer should determine:

• who owns the selling company;
• who controls it;
• who has authority to approve the sale;
• whether corporate approvals are valid;
• whether any beneficial owner is sanctioned;
• whether ownership is disputed;
• whether shares have been pledged;
• whether financing arrangements restrict disposal.

Failure to perform this review can result in significant post-closing disputes.

A buyer may discover that the person signing the memorandum of agreement did not possess proper authority or that sanctions affecting the ownership chain prevent banks or insurers from completing the transaction.

2. UBO Risks in Turkish Ship Registration

Beneficial ownership should also be distinguished from the ownership requirements applicable to Turkish ship registration.

Turkey’s National Ship Registry operates under the Turkish Commercial Code and the Ship Registry framework. Official registry guidance confirms that registration eligibility is linked to the right to fly the Turkish flag and includes specific ownership and management requirements. (Gemi Sicilleri)

For corporate shipowners, the official guidance states that at least 51% of the relevant shareholding must satisfy the Turkish ownership requirement and that the majority of persons authorized to manage a Turkish shipowning company must be Turkish citizens under the applicable conditions. (Gemi Sicilleri)

Foreign investors should therefore avoid structuring a vessel acquisition first and asking whether the structure qualifies for the intended Turkish registry afterward.

Registration eligibility should be analyzed before completion.

3. UBO Risks in Maritime Sanctions Screening

Sanctions are one of the strongest reasons for investigating ultimate ownership.

A vessel itself may not appear on a sanctions list.

Its registered owner may also appear clear.

Nevertheless, the company may ultimately be owned or controlled by a designated person.

A proper sanctions review may therefore need to examine:

• registered owner;
• intermediate holding companies;
• ultimate shareholders;
• persons exercising control;
• directors and managers;
• charterers;
• financing parties.

The ownership and control tests vary between sanctions regimes. A threshold or control analysis used for one jurisdiction should not automatically be assumed to apply under another.

For international shipping companies operating through Turkey, this is particularly important where transactions also involve U.S., EU, or UK banks, insurers, charterers, traders, or other service providers.

4. Nominee Shareholder Risk

Nominee arrangements are not inherently unlawful.

However, they significantly increase due-diligence risk where the nominee appears to hold shares on behalf of another person.

The transaction team should determine whether the nominal shareholder actually enjoys the economic benefits and exercises control.

Red flags can include:

• shareholders with no commercial connection to shipping;
• identical nominees appearing across numerous unrelated companies;
• unexplained powers of attorney;
• shareholder agreements contradicting formal ownership;
• undisclosed trust arrangements;
• inability to identify the source of acquisition funds.

The existence of a nominee does not establish misconduct, but it can justify enhanced investigation.

5. UBO Risks in Vessel Financing

Ship financing involves extensive know-your-customer and ownership due diligence.

A lender financing a vessel acquisition may request:

• corporate structure charts;
• shareholder registers;
• identification of UBOs;
• incorporation documents;
• source-of-funds information;
• financial statements;
• sanctions declarations;
• corporate resolutions;
• guarantees.

If beneficial ownership changes after financing has been granted, the financing documents may require notification or lender consent.

An undisclosed ownership change may potentially constitute a contractual default depending on the facility agreement.

6. UBO Risks in Ship Mortgages

Where vessel financing is secured by a mortgage, ownership transparency becomes even more important.

The lender must understand the identity of the borrower, shipowner, guarantors, and persons controlling the corporate group.

The Turkish National Ship Registry is supervised by the competent commercial courts, and official guidance confirms that objections to registry-office decisions may be brought before the competent court within the applicable eight-day period. (Gemi Sicilleri)

Ownership and mortgage documentation should therefore be carefully coordinated with the applicable registry procedure.

7. UBO Risks in Charterparties

Charterers increasingly conduct ownership screening before fixing a vessel.

This is especially common in:

• tanker trades;
• energy transportation;
• sanctions-sensitive routes;
• commodity shipments;
• high-value cargo movements.

A charterparty may include warranties requiring the owner to confirm that the vessel, registered owner, beneficial owners, managers, and other relevant parties are not subject to specified sanctions.

If that representation is false, contractual consequences can be substantial.

Depending on the wording, the charterer may attempt to reject the vessel, refuse voyage orders, terminate the charter, withhold payments, or claim an indemnity.

8. Change of UBO During a Voyage

Beneficial ownership risk does not end when the charterparty is signed.

Ownership can change while a vessel is trading.

A share sale at holding-company level may effectively change the ultimate ownership of the vessel without any immediate change appearing on the vessel’s certificate of registry.

This is why higher-risk transactions may require ongoing screening.

Shipping companies should consider whether ownership should be rechecked before:

• loading;
• entering a sensitive port;
• making freight payments;
• renewing insurance;
• completing a vessel acquisition.

A sanctions-screening result obtained several months earlier may no longer accurately reflect the ownership structure.

9. Insurance and P&I Risks

Marine insurers and P&I Clubs may also require information about ultimate ownership.

A material ownership change can affect underwriting and sanctions compliance.

The insurer may want to know whether a new beneficial owner creates:

• sanctions exposure;
• jurisdictional risk;
• trading-pattern changes;
• reputational risk;
• regulatory concerns.

Foreign shipowners should therefore review notification obligations contained in their insurance documentation when corporate ownership changes.

10. UBO Risks in Asset Freezing and Enforcement

Beneficial ownership can become particularly contentious where authorities or creditors seek to identify assets associated with a particular individual or company.

The fact that a vessel is registered in the name of a special-purpose company does not automatically answer every question concerning ultimate control.

Depending on the legal basis of the proceeding, investigators may examine:

• shareholder records;
• financing arrangements;
• corporate control;
• payment flows;
• management agreements;
• beneficial ownership declarations;
• related-company transactions.

However, corporate separateness remains legally important.

The fact that one individual ultimately owns a group does not automatically mean every vessel in the group can be treated as that individual’s personal property for every legal purpose.

The specific legal basis for enforcement must still be established.

11. UBO Risks in Maritime Joint Ventures

Joint ventures can create particularly difficult ownership questions.

Consider a shipowning company with four shareholders, each holding 25%.

A simplistic review might conclude that there is no natural person holding more than 25%.

That does not necessarily end the Turkish UBO analysis.

General Communiqué No. 529 provides that where no natural person holds more than 25%, the person or persons ultimately controlling the entity must be considered; if the beneficial owner still cannot be identified under the prescribed tests, the natural person or persons holding the highest executive authority may become relevant under the framework. (Gelir İdaresi Başkanlığı)

Control rights must therefore be examined alongside percentages.

12. Shareholders’ Agreements Can Reveal Actual Control

Corporate registry information may not tell the whole story.

A shareholders’ agreement may grant one shareholder:

• board appointment rights;
• veto powers;
• financing control;
• strategic decision-making authority;
• control over vessel sales;
• authority over chartering policy.

Accordingly, two shareholders with identical percentages may have very different levels of actual control.

UBO due diligence should therefore examine contractual control where the transaction warrants enhanced review.

13. False or Incomplete UBO Information

Providing inaccurate beneficial ownership information can create consequences that extend beyond the underlying transaction.

Depending on the circumstances, the company may face:

• tax compliance problems;
• regulatory scrutiny;
• banking restrictions;
• delayed payments;
• transaction suspension;
• insurance complications;
• contractual claims;
• sanctions investigations.

General Communiqué No. 529 expressly seeks current, complete, and accurate identification of beneficial owners for the entities falling within its reporting framework. (Gelir İdaresi Başkanlığı)

Companies should therefore update ownership information when legally required rather than treating an earlier disclosure as permanently sufficient.

14. UBO Due Diligence Checklist for Maritime Transactions

For a high-value or sanctions-sensitive Turkish maritime transaction, a UBO review should normally consider the following:

1. Obtain the vessel’s current registry extract.
2. Verify the IMO number and ownership history.
3. Identify the registered shipowner.
4. Obtain corporate registry documents.
5. Map every intermediate holding company.
6. Identify natural persons holding more than 25% where the Turkish reporting framework applies.
7. Determine whether another person exercises ultimate control.
8. Review shareholders’ agreements where relevant.
9. Identify nominee or trust arrangements.
10. Screen UBOs against applicable sanctions regimes.
11. Verify directors and authorized signatories.
12. Review recent ownership changes.
13. Confirm financing and mortgage restrictions.
14. Preserve documentary evidence supporting the UBO determination.

The depth of investigation should reflect the value and risk profile of the transaction.

What Foreign Shipowners Should Know in 2026

As of 2026, Turkey’s core UBO reporting framework continues to be based on General Communiqué No. 529, which defines beneficial ownership and establishes identification and reporting rules for entities within its scope. (Gelir İdaresi Başkanlığı)

At the maritime level, the National Ship Registry continues to operate under Law No. 6102 and the applicable registry framework, with ownership and nationality remaining central to Turkish-flag eligibility. (Gemi Sicilleri)

There are also sector-specific regulatory developments. For example, the new Ship Agencies Regulation entered into force on May 14, 2026, introducing an updated authorization framework for ship agencies. (Denizcilik Genel Müdürlüğü)

The practical compliance lesson for 2026 is clear: registered ownership, beneficial ownership, corporate control, sanctions screening, and maritime regulatory compliance should be reviewed together when the transaction is high-value, international, or sanctions-sensitive.

Frequently Asked Questions

1. What does UBO mean in a Turkish maritime transaction?

UBO means Ultimate Beneficial Owner. In practical terms, it refers to the natural person or persons who ultimately own or control the relevant corporate structure rather than merely the company appearing as the vessel’s registered owner.

2. What is the UBO ownership threshold in Turkey?

Under General Communiqué No. 529, natural persons holding more than 25% of a legal entity are initially relevant. However, if those persons are not the actual beneficial owners, or no person exceeds the threshold, ultimate control must also be examined. (Gelir İdaresi Başkanlığı)

3. Is the registered shipowner automatically the UBO?

No. The registered owner may itself be a company owned through several additional corporate layers.

4. Can a person holding less than 25% still be considered a UBO?

Potentially, yes. Percentage ownership is not the only consideration under Turkey’s framework. Ultimate control may also determine beneficial ownership. (Gelir İdaresi Başkanlığı)

5. Why should a vessel buyer investigate the seller’s UBO?

UBO due diligence can identify sanctions exposure, disputed ownership, hidden control arrangements, financing restrictions, or authority problems before the transaction is completed.

6. Can a change in UBO affect a charterparty?

Yes. Sanctions, ownership, compliance, or change-of-control clauses may create notification, refusal, termination, or other contractual consequences depending on their wording.

7. Can UBO information affect ship financing?

Yes. Banks commonly require detailed ownership and control information as part of KYC, sanctions screening, credit approval, and ongoing loan compliance.

8. Does using a single-purpose company eliminate UBO disclosure risk?

No. A special-purpose shipowning company may be perfectly legitimate, but the ownership analysis may need to continue through the corporate chain to the natural persons exercising ultimate ownership or control.

9. Can incorrect UBO information create sanctions problems?

Yes. A vessel or registered owner may appear clear while an ultimate owner or controller is designated under an applicable sanctions regime.

10. When should UBO due diligence be completed?

Ideally before signing or completing a significant vessel sale, financing, charterparty, corporate restructuring, sanctions-sensitive voyage, or other high-value maritime transaction.

Legal Support for UBO and Maritime Due Diligence in Turkey

Ultimate beneficial ownership problems can transform an ordinary vessel acquisition, charterparty, financing, or shipping transaction into a complex dispute involving Turkish maritime law, corporate law, sanctions, banking, taxation, insurance, and asset enforcement.

Fırat Fesih Kaya provides legal assistance to foreign shipowners, international shipping companies, vessel purchasers, investors, charterers, lenders, managers, and cargo interests concerning UBO investigations, vessel ownership structures, ship sale and purchase transactions, maritime due diligence, sanctions screening, financing, and ownership disputes in Turkey.

For high-value transactions, conducting a legal review before signing, financing, or transferring the vessel can help identify hidden ownership, sanctions, corporate-authority, mortgage, and contractual risks before they develop into substantial commercial losses.

For a case-specific assessment of a vessel ownership structure or Turkish maritime transaction, you may contact our office.

Phone: +90 312 434 22 22
Mobile: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Address: Mevlana Boulevard No: 221, Yıldırım Tower No: 148, 06520 Balgat, Çankaya, Ankara, Turkey