Customs Fraud Allegations in Turkey | Criminal Defense for Foreign Companies 2026

What should a foreign company do when accused of customs fraud in Turkey? Learn about Anti-Smuggling Law investigations, manager liability, seizure, confiscation, false invoices, customs valuation disputes, supplier mistakes, and emergency defense strategies in 2026.

A customs investigation can quickly become a serious criminal problem when Turkish authorities suspect that incorrect declarations, invoices, origin documents, tariff classifications, quantities, or import procedures were deliberately used to avoid customs duties or regulatory controls.

Foreign investors should understand an important distinction from the beginning: “customs fraud” is a broad commercial expression rather than a single universal criminal charge under Turkish law. Depending on the conduct alleged, an investigation may involve Anti-Smuggling Law No. 5607, Customs Law No. 4458, document-forgery provisions, fraud offences, money-laundering rules, or other criminal and administrative legislation.

Not every customs discrepancy is criminal.

A valuation disagreement, incorrect tariff code, supplier packing mistake, missing document, or genuine misunderstanding of origin rules may generate additional customs assessments or administrative penalties without proving an intentional smuggling offence.

The central defense question is therefore often whether prosecutors can establish intentional participation in unlawful customs conduct, rather than merely demonstrating that a customs declaration contained an error.

For foreign-owned companies, immediate action is particularly important because an investigation may affect company managers, local representatives, customs brokers, goods, vehicles, bank records, commercial documents, and continuing import operations at the same time.

Customs Enforcement Is Particularly Active in Turkey in 2026

Foreign companies should not treat customs compliance as a routine administrative issue.

The Ministry of Trade reported that secondary declaration reviews and post-clearance company inspections produced approximately TRY 8.9 billion in additional assessments and penalties during the first seven months of 2026. Risk analysis is increasingly supported by advanced data-analysis systems used to identify potentially irregular companies and declarations.

Customs Enforcement authorities also reported 3,433 operations during the first half of 2026 involving approximately TRY 62.7 billion worth of commercial goods and narcotics.

This enforcement environment means that discrepancies may be identified not only while goods are physically passing through customs but also months or years later during post-clearance reviews.

What Conduct Can Trigger Customs Fraud or Smuggling Allegations?

Investigations may arise from allegations involving:

• Undeclared commercial goods
• False or misleading invoices
• Artificially reduced customs values
• Undeclared side payments
• Incorrect quantity declarations
• Deliberately incorrect tariff classifications
• False country-of-origin declarations
• False certificates
• Unauthorized or restricted goods
• Concealed merchandise
• Goods imported without mandatory permits
• Misuse of transit procedures
• Diversion of customs-controlled goods
• False preferential-origin claims
• Manipulated commercial documentation
• Use of intermediary companies to conceal the actual transaction

The legal characterization depends on the facts.

The same incorrect declaration can produce very different consequences depending on whether it resulted from negligence, incorrect supplier information, professional interpretation of tariff rules, or deliberate concealment.

Administrative Customs Violation or Criminal Offence?

This distinction should be examined immediately.

A customs authority may conclude that:

• Additional taxes are payable.
• An administrative monetary penalty applies.
• A customs declaration must be corrected.

Those findings do not automatically prove a criminal offence.

Criminal smuggling allegations under Law No. 5607 require the statutory elements of the particular offence to be established.

Turkish criminal law also applies the principle of personal criminal responsibility. Article 20 of the Turkish Penal Code states that criminal responsibility is personal and that no person may be held criminally responsible for another person’s conduct. It further provides that criminal penalties are not imposed directly on legal entities, although legally authorized security measures concerning legal entities remain possible.

For a foreign corporate group, this means that the prosecution must examine the conduct of the actual individuals involved rather than simply concluding that every director or shareholder is criminally responsible because the company imported disputed goods.

Can the Foreign Company Itself Be Criminally Convicted?

Turkish criminal law principally imposes criminal responsibility on natural persons.

Therefore, a corporation itself is not sentenced to imprisonment.

However, this does not mean that a company is unaffected by a criminal customs case.

Depending on the legal basis, a company may face:

• Administrative monetary sanctions
• Confiscation consequences
• Security measures applicable to legal entities
• Loss of goods
• License or authorization consequences
• Customs assessments
• Commercial restrictions
• Reputational consequences

Turkish legislation also permits administrative sanctions against a legal entity in specified circumstances where certain offences, including smuggling offences, are committed for the benefit of that legal entity by persons acting within its organizational structure.

Accordingly, the defense should protect both the individuals under investigation and the company as a separate commercial entity.

Can Company Directors Be Personally Liable?

Potentially, but directorship alone should not establish guilt.

Investigators may examine whether a director or manager:

• Ordered the incorrect declaration
• Approved false invoices
• Knew the true value of goods
• Directed employees to conceal merchandise
• Approved false origin documents
• Participated in customs communications
• Benefited from the unlawful transaction
• Knew that import restrictions were being bypassed

A foreign shareholder who played no operational role should not automatically be treated in the same way as the employee who prepared or knowingly approved the allegedly false customs documentation.

The internal decision-making chain is therefore critical.

Who Actually Prepared the Customs Declaration?

One of the first questions should be:

Who supplied the information that ultimately appeared in the customs declaration?

Potential participants include:

• Foreign supplier
• Turkish importer
• Procurement department
• Finance department
• Logistics manager
• Customs broker
• Freight forwarder
• Local distributor
• Foreign parent company

The defense should reconstruct the complete chain.

For example, if the foreign manufacturer supplied an incorrect technical description that caused the customs broker to use the wrong tariff classification, that situation is fundamentally different from a manager instructing the broker to use an incorrect code to avoid duty.

Supplier Errors Can Be a Major Defense

Foreign suppliers sometimes cause customs discrepancies without the Turkish importer knowing about them.

Examples include:

• Extra goods loaded into the container
• Incorrect quantity
• Wrong product model
• Incorrect invoices
• Wrong country-of-origin information
• Undeclared replacement parts
• Incorrect technical specifications
• Refurbished goods described as new

The importer should immediately preserve:

• Purchase orders
• Sales agreements
• Supplier emails
• Proforma invoices
• Commercial invoices
• Packing lists
• Pre-shipment photographs
• Payment records
• Product specifications

A written supplier admission explaining the error can be particularly important.

However, the supplier’s admission does not automatically end the criminal investigation. Authorities will still examine whether the importer knew or should have known about the discrepancy.

Customs Valuation Allegations

Customs fraud investigations frequently begin with valuation.

Authorities may investigate whether the importer deliberately declared an artificially low price to reduce customs duties.

Potential warning signs include:

• Side payments
• Unexplained transfers
• Two different invoices
• Royalties omitted from customs value
• Undisclosed license fees
• Related-party transactions
• Artificial discounts
• Payments through third parties

The defense should reconstruct the entire commercial payment structure.

Useful evidence includes:

• Purchase agreement
• Bank transfers
• Transfer-pricing documentation
• Supplier price lists
• Credit notes
• Discount correspondence
• Royalty agreements
• Freight and insurance invoices

The Ministry’s 2026 post-clearance enforcement data shows that customs authorities are actively using risk-analysis and valuation tools when reviewing past declarations.

Tariff Classification Disputes Are Not Automatically Fraud

Many customs investigations involve disputes over the correct tariff code.

Complex machinery, electronic devices, chemical products, composite goods, and industrial equipment can reasonably create classification disagreements.

The defense should distinguish between:

A legitimate classification interpretation, and

deliberate misclassification designed to evade taxes or controls.

Evidence supporting good faith may include:

• Manufacturer technical specifications
• Independent classification opinions
• Previous customs declarations
• Foreign customs rulings
• Customs broker correspondence
• Engineering reports

Where qualified professionals genuinely disagreed over classification, that may be relevant when assessing criminal intent.

False Origin Allegations

Country of origin can determine preferential duties, anti-dumping measures, quotas, and trade restrictions.

Authorities may investigate whether products described as originating in one country were actually manufactured elsewhere.

Foreign companies should preserve:

• Supplier declarations
• Manufacturing records
• Bills of materials
• Production invoices
• Certificates of origin
• Shipping documents
• Factory information

If the Turkish importer relied on apparently genuine documents supplied by an overseas manufacturer, this reliance may become relevant to the criminal defense.

False Documents Create Additional Criminal Risk

An investigation becomes significantly more serious if authorities believe forged or deliberately false documents were used.

Potential documents include:

• Commercial invoices
• Certificates of origin
• Import licenses
• Test certificates
• Supplier declarations
• Customs documents
• Transportation documentation

Depending on the circumstances, document-forgery offences may be investigated separately from the underlying smuggling allegation.

The defense should therefore determine exactly who created, modified, received, and submitted each document.

Searches of Company Premises and Digital Evidence

A customs criminal investigation may involve searches and seizure of evidence.

Authorities may obtain or examine:

• Computers
• Mobile phones
• Accounting records
• Emails
• ERP systems
• Customs files
• Bank records
• Internal messages
• Supplier correspondence

Foreign companies should immediately preserve digital evidence rather than deleting, altering, or reorganizing it after learning of an investigation.

Potentially exculpatory records may show that company employees repeatedly requested correct documentation, raised concerns about the shipment, or relied on information supplied by another party.

Company Goods May Be Seized

A criminal customs investigation can lead to seizure of:

• Imported goods
• Containers
• Vehicles
• Machinery
• Commercial inventory
• Documents
• Digital devices

Customs Enforcement operates under legislation including Anti-Smuggling Law No. 5607, Customs Law No. 4458, and the Criminal Procedure Code.

Seizure is not equivalent to final confiscation.

The company should obtain the seizure report, judicial authorization or approval, investigation number, and detailed inventory of the property taken.

Can Seizure Be Challenged?

Yes.

The company should immediately examine whether:

• There was a valid legal basis.
• The order covered the specific goods.
• Judicial approval requirements were satisfied.
• Continued retention remains necessary.
• Samples or photographs would be sufficient evidence.
• The company is a good-faith owner.
• Part of the shipment can be released.

Where physical retention is no longer necessary for the investigation or the goods are not expected to be confiscated, a return application may be pursued under the relevant Criminal Procedure Code rules.

Good-Faith Ownership Is Important

The Turkish Penal Code protects good-faith third-party ownership in the general confiscation framework.

This can become particularly important where the alleged misconduct was committed by:

• Foreign supplier
• Customs broker
• Freight forwarder
• Company employee acting without authority
• Logistics contractor

The company should demonstrate its independent good faith through internal controls, contracts, payment records, and compliance documentation.

Can Only Part of the Shipment Be Released?

Potentially.

If an investigation concerns only certain goods, the company should challenge continued seizure of unrelated property.

For example, a container may contain 5,000 lawful items and only 100 disputed products.

The defense should ask:

• Are the lawful goods required as evidence?
• Can disputed goods be separated?
• Have samples already been taken?
• Is there any confiscation basis concerning the remaining products?

Partial release can dramatically reduce commercial losses.

Confiscation Risk

The greatest property risk in a customs criminal case is confiscation.

Turkish Penal Code Article 54 provides the general framework concerning confiscation of property used for or generated by an intentional offence, while also protecting good-faith third-party ownership.

Anti-Smuggling Law proceedings may contain additional rules concerning confiscation and liquidation.

The defense should therefore distinguish:

• Temporary seizure
• Interim liquidation
• Final confiscation

They are not interchangeable concepts.

Goods May Be Liquidated Before Final Judgment

A particularly important risk in Anti-Smuggling Law cases is that seized commercial goods may become subject to liquidation before the criminal proceedings finally conclude.

Official Turkish customs materials concerning Law No. 5607 confirm that property subject to confiscation can enter special liquidation procedures and that the applicable law regulates disposal of seized goods.

Foreign companies should therefore monitor:

• Valuation
• Sampling
• Physical condition
• Proposed sale
• Destruction
• Liquidation decisions

Waiting until the criminal case ends may be too late to protect the original goods.

Effective Remorse Under Anti-Smuggling Law

Anti-Smuggling Law No. 5607 contains specific effective-remorse provisions that may reduce punishment in qualifying cases.

Current judicial materials explain that Article 5 provides mechanisms involving disclosure and, for qualifying offences, payment based on the customs-inclusive value of the goods. The availability and extent of any reduction depend on the stage of proceedings and statutory conditions.

This mechanism should not be used automatically.

Payment under an effective-remorse provision can have significant strategic consequences. Before using it, defense counsel should assess:

• Whether the alleged offence is actually established
• Whether the provision applies to the offence
• Stage of investigation
• Effect on the defense position
• Amount involved
• Whether exclusions apply

A company or manager with a strong innocence defense should not treat effective remorse as merely another customs settlement mechanism.

Administrative Customs Proceedings May Continue Separately

A criminal investigation does not necessarily replace the customs administrative proceedings.

The company may simultaneously face:

• Additional customs duties
• Administrative fines
• Customs valuation reassessment
• Tariff reassessment
• Article 242 objections
• Criminal investigation under Law No. 5607

The defense team should coordinate these proceedings carefully.

A statement submitted in an administrative customs objection may later appear in the criminal file.

Consistency is therefore essential.

Do Not Admit Intent Merely to Obtain Customs Release

Commercial pressure can lead companies to make damaging statements.

For example, a manager may sign a declaration accepting that the customs information was “knowingly incorrect” because the company believes doing so will accelerate release.

Such language may later become important evidence in the criminal proceedings.

Before signing:

• Settlement documents
• Customs statements
• Expert reports
• Supplier declarations
• Confessions
• Waivers

the company should assess their potential criminal consequences.

What Should Managers Do During Questioning?

Managers should avoid guessing.

Statements should distinguish clearly between:

• Personal knowledge
• Information obtained from employees
• Information supplied by the foreign supplier
• Customs broker advice
• Assumptions

A senior executive should not accept responsibility for a customs declaration merely because the declaration was filed on behalf of the company.

The investigation should identify who actually participated in the transaction and what each person knew.

Internal Investigation Can Strengthen the Defense

Foreign companies should conduct an immediate privileged legal review where appropriate.

The internal investigation may reconstruct:

• Ordering process
• Supplier communications
• Pricing
• Invoice preparation
• Tariff classification
• Customs instructions
• Payments
• Product receipt
• Discovery of discrepancy

This can identify both incriminating and exculpatory evidence before records disappear or employees’ memories fade.

2026 Risk-Based Post-Clearance Audits

A company may face criminal allegations even after goods were successfully released months earlier.

In 2026, the Ministry continues extensive secondary review and post-clearance company audits using risk-analysis technologies. During the first seven months alone, 19,638 declarations associated with 3,223 companies were reviewed through secondary controls, while 145 companies underwent post-clearance inspections.

Foreign investors should therefore preserve customs documentation well after clearance.

A historical customs transaction can become the subject of later administrative and criminal investigation.

Emergency Defense Strategy

When a foreign company learns that it faces customs fraud or smuggling allegations, it should immediately:

1. Identify the alleged offence.
2. Obtain the customs and criminal investigation records legally available.
3. Determine which managers or employees are considered suspects.
4. Preserve all physical and digital evidence.
5. Stop deletion of emails and electronic records.
6. Reconstruct the customs declaration process.
7. Identify who supplied disputed information.
8. Collect supplier documentation.
9. Challenge unlawful or unnecessary seizure.
10. Preserve good-faith third-party ownership arguments.
11. Monitor liquidation and confiscation risks.
12. Coordinate criminal defense with customs objections.
13. Avoid inconsistent statements across proceedings.
14. Evaluate supplier, broker, or logistics-provider responsibility.
15. Assess effective-remorse provisions only after full legal analysis.

Frequently Asked Questions

1. Is an incorrect customs declaration automatically customs fraud in Turkey?

No. An incorrect declaration may result from negligence, a supplier error, classification disagreement, or another non-criminal cause. Criminal liability depends on satisfying the elements of the applicable offence and proving the required mental element.

2. Can a foreign company itself be sent to criminal court?

Turkish criminal responsibility principally applies to natural persons. Article 20 of the Turkish Penal Code states that criminal penalties cannot be imposed directly on legal entities, although legally authorized security measures and other corporate consequences may apply.

3. Can a foreign company director be imprisoned because an employee filed a false customs declaration?

Not merely because the person is a director. Criminal liability is personal. Prosecutors must examine the individual’s knowledge, conduct, instructions, and participation.

4. Can company goods be seized during the investigation?

Yes. Goods or other assets relevant as evidence or potentially subject to confiscation may be seized where the statutory conditions are satisfied.

5. Does seizure mean the company permanently loses the goods?

No. Seizure is generally a temporary procedural measure. Final confiscation requires a separate legal basis and judicial determination.

6. What if the foreign supplier provided the false invoice or incorrect goods?

Supplier responsibility can be a major defense issue. The company should preserve orders, contracts, payment records, invoices, packing lists, emails, and any written supplier admission demonstrating what the importer actually knew and requested.

7. Can an innocent company’s goods still be protected from confiscation?

Good-faith third-party ownership is legally important under Turkish confiscation rules. Ownership, knowledge, corporate separation, and participation in the alleged offence should be documented carefully.

8. Can customs penalties and a criminal investigation arise at the same time?

Yes. Additional taxes, administrative customs penalties, and criminal proceedings under Anti-Smuggling Law No. 5607 may proceed through separate legal mechanisms.

9. Is effective remorse available in customs smuggling cases?

Law No. 5607 contains effective-remorse provisions for qualifying offences and circumstances. The consequences depend on the offence, procedural stage, payment requirements, and statutory exclusions, so the option should be assessed individually rather than used automatically.

10. When should a foreign company instruct a Turkish customs criminal lawyer?

Immediately after receiving notice of a criminal investigation, seizure, search, prosecutor summons, manager questioning, or suspected referral under Anti-Smuggling Law No. 5607. Early intervention can substantially affect evidence preservation, statements, seizure challenges, and the distinction between an administrative customs error and an intentional criminal offence.

Criminal Defense and Customs Legal Support for Foreign Companies in Turkey

A customs fraud allegation can expose a foreign business simultaneously to criminal investigation, seizure of commercial goods, customs tax assessments, administrative penalties, manager liability, liquidation risks, and substantial disruption to continuing import operations.

The most important defense objective is often to distinguish a commercial or customs-compliance error from intentional smuggling conduct and to identify precisely who created, knew about, or approved the disputed transaction.

Fırat Fesih Kaya Law Office provides legal assistance to foreign investors, foreign-owned companies, international manufacturers, importers, exporters, executives, and logistics businesses facing serious customs and criminal investigations in Turkey.

Lawyer Fırat Fesih Kaya assists clients with customs fraud allegations, Anti-Smuggling Law No. 5607 investigations, manager and employee criminal liability, false invoice and customs valuation allegations, tariff and origin disputes, supplier-caused declaration problems, search and seizure proceedings, return of seized company goods, confiscation and liquidation risks, customs administrative penalties, Article 242 objections, and coordinated criminal-defense strategies.

Early legal intervention can help preserve exculpatory evidence, prevent damaging statements, challenge unnecessary seizure, establish good-faith corporate ownership, identify supplier or broker responsibility, and protect both the foreign investment and the individuals involved in the transaction.

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

This publication is provided for general informational purposes and does not constitute legal advice. Customs criminal investigations should be assessed according to the precise allegation, evidence, customs declaration, individual participation, ownership structure, seizure decisions, procedural stage, and legislation applicable at the relevant time.