Customs Authorities Seize Imported Goods for Suspected False Documentation in Turkey: What Should Foreign Companies Do? (2026 Updated Guide)

Turkish Customs seizes imported goods because invoices, certificates, origin documents or other records are suspected to be false. Learn the customs and criminal risks, evidence strategy, seizure objections and legal remedies available to foreign companies.

When Turkish Customs suspects that documents submitted for imported goods are false, altered or misleading, an ordinary customs disagreement can rapidly develop into a much more serious case. The goods may be detained or seized, customs clearance may stop, original documents may be examined, company representatives may be questioned and the matter may potentially be referred for investigation under customs and anti-smuggling legislation. For a foreign manufacturer, exporter or investor, the most important first step is to determine which document is suspected to be false, why authorities question it, who created or supplied it and whether the allegation concerns an innocent discrepancy, an inaccurate commercial document or deliberate falsification.

Which Documents Can Trigger a False-Documentation Investigation?

The allegation may concern a commercial invoice, Certificate of Origin, preferential-origin document, transport document, packing list, manufacturer declaration, conformity document, laboratory report, payment document, customs-value document or another record submitted during importation.

Different documents serve different legal purposes. The consequences therefore depend heavily on what document is disputed.

Obtain the Exact Reason for the Seizure

A foreign company should not rely solely on a statement from its customs broker that “Customs thinks the documents are fake.”

Obtain the seizure record, inspection documentation and other available official records identifying the suspected document and the basis of the measure.

Detention and Seizure Should Be Distinguished

Goods being temporarily held during customs examination is not necessarily the same legal situation as goods formally seized in connection with a criminal investigation.

The company should determine the precise legal status of the goods immediately because different remedies and authorities may become relevant.

Is the Case Administrative or Criminal?

This is one of the first questions that should be answered.

Some documentation errors may result primarily in customs reassessment or administrative penalties. Other allegations—particularly deliberate use of falsified documents connected with unlawful importation—can potentially lead to a criminal investigation.

The facts and applicable statutory provisions must therefore be examined separately.

A Wrong Document Is Not Automatically a Forged Document

An invoice containing an incorrect product description does not automatically establish forgery. Likewise, an inaccurate origin statement may arise from supplier error, misunderstanding or a disputed origin analysis.

The company should determine whether the document is allegedly fabricated, altered, inaccurate or simply inconsistent with another record.

Identify Who Created the Document

Was the document prepared by the foreign manufacturer, exporter, freight forwarder, customs broker, chamber, public authority, laboratory or another third party?

Authorship and transmission history can become crucial when authorities investigate responsibility.

Preserve the Original Document

Do not modify the disputed record after the investigation begins.

Preserve the original electronic and physical versions, together with metadata, emails, attachments and transmission records showing when and from whom the document was received.

Do Not Create a Replacement to Hide the Original

If a genuine mistake exists, it should be addressed transparently through the legally appropriate procedure.

Creating a new document and presenting it as though it had existed at the time of importation can significantly worsen the company’s position.

Preserve Email Correspondence

Emails can establish how the Turkish importer received the disputed document and whether it had any reason to question its authenticity.

Preserve complete email chains rather than isolated screenshots.

Preserve Messaging Records

Where documents were exchanged through business messaging platforms, preserve the relevant conversation and attachments lawfully.

The chronology can help identify who provided the information used in the customs declaration.

Review the Commercial Invoice

If the invoice is disputed, compare it with the purchase contract, purchase order, payment records, accounting entries, manufacturer’s sales records and export declaration.

The commercial transaction should be capable of being reconstructed independently of the challenged document.

Customs Value Allegations Require Separate Analysis

A suspected false invoice may lead Customs to question whether the declared transaction value is genuine.

The company should preserve bank transfers, letters of credit, accounting records, rebates, commissions, royalties and any other payments connected with the imported goods.

Undervaluation Allegations Can Escalate Quickly

If authorities believe a false invoice was used to reduce customs duties, the dispute may extend beyond ordinary valuation methodology.

The company should distinguish a legitimate customs-value disagreement from an allegation that transaction documents were intentionally falsified.

Review Country-of-Origin Documentation

Origin disputes are another frequent source of documentation investigations.

Compare the Certificate of Origin and other origin documentation with factory records, bills of materials, production stages and transport documents.

Country of Export Is Not Necessarily Country of Origin

Goods may be shipped from one country but originate in another.

An inconsistency between shipping country and origin therefore does not by itself establish falsification. The manufacturing history should be reconstructed.

Preferential Origin Requires Particular Care

Where preferential tariff treatment was claimed, determine whether the disputed document was actually required to establish preferential origin and whether the underlying goods satisfied the relevant origin rules.

A defective certificate and genuinely non-originating goods are not necessarily the same issue.

A.TR Documentation Should Be Analyzed Correctly

An A.TR document should not automatically be treated as a universal Certificate of Origin. Its function should be analyzed within the applicable customs framework.

This distinction can be important where authorities question both origin and preferential treatment.

Review Manufacturer Certificates

If Customs questions a manufacturer’s declaration or technical certificate, obtain confirmation directly from the issuing manufacturer and preserve the original production and quality records supporting it.

Laboratory Reports Can Also Be Investigated

Where a laboratory report is suspected to be false or altered, contact the laboratory through reliable channels and verify the report number, sample, date and result.

Do not rely solely on the intermediary that originally supplied the report.

Electronic Verification Evidence Should Be Preserved

Where certificates can be verified electronically, preserve evidence of the verification result and date.

If the system produces inconsistent results, document those inconsistencies rather than repeatedly modifying submissions.

Review the Customs Broker’s Role

Determine exactly what information was supplied to the customs broker before the declaration.

Preserve emails, instructions, product descriptions, tariff information, invoices and certificates transmitted to the broker.

Broker Error and Importer Responsibility Are Different Questions

A customs broker’s involvement does not automatically eliminate every responsibility of the importer. At the same time, a broker’s independent alteration or incorrect use of documentation may be highly relevant.

The roles of each participant should be reconstructed separately.

Foreign Supplier Responsibility May Be Critical

If the foreign supplier provided a false or materially inaccurate document, the Turkish importer may face public-law exposure even though the supplier caused the underlying problem.

Potential contractual recovery against the supplier should therefore be evaluated independently.

Send Formal Notice to the Supplier

Where supplier documentation is questioned, request immediate confirmation of authenticity and supporting records.

The supplier should also be instructed to preserve relevant production, sales and communication records.

Do Not Coordinate False Explanations

Importer, exporter, manufacturer and broker should coordinate factually, but coordination must not become an attempt to create a common false narrative.

Each party should preserve genuine records and provide accurate information.

Goods May Become Evidence

If a criminal investigation begins, the imported goods themselves may become relevant evidence.

Do not alter, move, relabel or dispose of them without determining whether authorization is required.

Preserve Representative Samples Where Possible

Where the dispute concerns composition, origin or product identity, physical evidence may become important.

Any sampling should comply with the applicable official procedure.

What If the Goods Are Perishable?

Perishable goods create additional urgency because deterioration can destroy both commercial value and evidence.

The company should immediately evaluate lawful preservation, sampling and procedural options.

Can the Seizure Be Challenged?

Potentially. The available remedy depends on whether the goods are being held under customs administrative authority, a criminal seizure order or another legal measure.

The company must first identify the legal basis and authority responsible for the seizure.

Criminal Seizure Requires a Criminal-Procedure Strategy

If the seizure forms part of a prosecutor-led criminal investigation, remedies should be evaluated under the applicable criminal-procedure framework rather than treating the issue solely as a customs objection.

This distinction is extremely important.

Customs Assessments Must Be Handled Separately

A criminal investigation does not necessarily replace customs assessments and administrative penalties.

The company may therefore face several parallel proceedings requiring different objections and deadlines.

Do Not Miss Customs Deadlines Because of the Criminal Case

Foreign companies sometimes focus entirely on the prosecutor’s investigation while an administrative customs objection period continues separately.

Create a procedural calendar covering every decision and notification.

Administrative Penalties Should Be Reviewed Individually

Determine what conduct each penalty decision alleges, the calculation method and the evidence relied upon.

Do not assume that the existence of a criminal investigation automatically proves the administrative violation.

Criminal Liability Requires Individual Analysis

The fact that a company imported goods using a disputed document does not automatically establish that every manager, employee or representative committed a criminal offense.

Individual knowledge, conduct, authority and involvement should be examined carefully.

Foreign Managers Should Prepare Before Giving Statements

If a foreign company manager is summoned, determine whether the person is being questioned as a suspect, witness or in another procedural capacity.

The relevant file and allegations should be reviewed before substantive explanations are given.

Interpreter Rights Can Be Important

A foreign manager who does not sufficiently understand the language of the proceeding should ensure that applicable interpretation rights are properly exercised.

Technical customs terminology can create serious misunderstandings even for individuals with conversational language ability.

Avoid Speculation During Statements

A manager should distinguish personal knowledge from assumptions.

Statements such as “I think the supplier probably prepared it” can create unnecessary contradictions if the document history has not yet been reconstructed.

Digital Evidence May Become Important

Authorities may examine emails, accounting systems, customs records and other digital evidence depending on the scope of the investigation.

Companies should implement an immediate document-preservation process.

Do Not Delete Relevant Communications

Deleting emails or messages after learning of an investigation can create serious evidentiary problems.

Preserve potentially relevant records even where they appear unfavorable.

Internal Investigation May Be Necessary

For significant cases, reconstruct the entire transaction internally: supplier selection, negotiation, purchase order, invoice, payment, shipping, customs documentation, broker instructions and regulatory certificates.

The objective is to determine what actually happened before developing the legal defense.

Review Similar Historical Imports

If the disputed documentation was used repeatedly, Customs may review earlier declarations.

Identify which shipments involved the same supplier, certificate, invoice format or origin representation.

Do Not Assume Every Historical Shipment Has the Same Problem

Factories, suppliers, prices and documents may have changed over time.

Historical exposure should be analyzed declaration by declaration rather than extrapolated automatically.

Review Goods Already in Transit

If additional shipments rely on the same disputed documentation, address them immediately.

Continuing to submit a document after authorities have questioned its authenticity can significantly increase exposure.

Suspend Use of the Disputed Document

Until authenticity and legal validity are established, the company should consider preventing the document from being reused in future customs declarations.

Payment Records Can Be Powerful Evidence

Where an invoice is alleged to be false, genuine banking records can help establish the actual commercial transaction.

Collect SWIFT records, bank statements, payment instructions and accounting entries where relevant.

Production Records Can Establish Product Identity

Factory records may demonstrate what was actually manufactured, where it was produced and which shipment contained it.

This can be particularly important in origin and product-description disputes.

Independent Expert Evidence May Be Necessary

Technical disputes concerning composition, manufacturing processes or document authenticity may require expert assistance.

An expert opinion should be based on original evidence rather than assumptions supplied by the company.

Consider Document Examination

Where signatures, stamps or alterations are disputed, forensic document examination may become relevant depending on the investigation.

Preserve original physical documents carefully.

Potential Confiscation Risk Should Be Evaluated

Where the investigation falls within anti-smuggling legislation, confiscation-related consequences may potentially arise depending on the alleged offense and status of the goods.

The company should evaluate this risk early rather than focusing only on release from customs.

Re-Export May Not Automatically Solve the Investigation

Once goods are seized as evidence or become subject to a criminal investigation, the importer should not assume that simply offering to re-export them will terminate the proceedings.

Any proposed disposition requires analysis of the goods’ legal status.

Abandonment Does Not Automatically Eliminate Liability

Similarly, abandoning commercially problematic goods should not be assumed to extinguish customs debt, penalties or criminal allegations that have already arisen.

Storage Costs Should Be Recorded

Seized goods can remain in ports or warehouses for significant periods.

Keep records of storage, demurrage, container, handling and preservation expenses.

Document Business Interruption Losses

If essential machinery, raw materials or inventory is seized, preserve evidence of production stoppage, cancelled orders and other direct commercial consequences.

Any future compensation or contractual claim will require proof.

Supplier Indemnification Should Be Reviewed

Check the supply agreement for warranties concerning invoice accuracy, origin, customs documentation, regulatory certificates and compliance with import requirements.

Indemnity clauses may become commercially important if the supplier caused the problem.

Fraud by a Supplier Can Create Separate Claims

If investigation ultimately establishes that the foreign supplier intentionally supplied fabricated documentation, the importer should evaluate contractual and other available remedies against the supplier separately from its defense before Turkish authorities.

Customs Compliance Procedures Should Be Strengthened

After an incident, companies should introduce verification controls for high-risk documents.

Certificates, origin evidence and invoices should not be accepted automatically merely because a long-standing supplier provided them.

High-Risk Documents Should Be Independently Verified

For significant imports, consider direct verification with issuing authorities, laboratories, manufacturers or other reliable sources where appropriate.

A simple verification step before shipment can prevent a much larger dispute after arrival.

Immediate Defense Strategy

When Turkish Customs seizes imported goods for suspected false documentation, the foreign company and Turkish importer should immediately obtain the seizure records, identify the disputed document, determine whether the proceeding is administrative or criminal, preserve originals and electronic metadata, reconstruct the transaction, verify the document with its genuine issuer, preserve payment and production evidence, review the customs broker’s role, notify the foreign supplier, protect every customs and criminal-procedure deadline, review historical and in-transit shipments and evaluate the appropriate procedure for challenging continued seizure.

Frequently Asked Questions

Does an incorrect customs document automatically constitute a criminal offense?

No automatic conclusion should be drawn. An inaccurate document, a forged document and deliberate use of false documentation can raise different factual and legal issues.

Can Customs seize goods while investigating documents?

Goods may be detained or seized depending on the legal basis and circumstances. The exact status of the measure should be obtained from the official records.

Can the importer challenge the seizure?

Potentially. The correct remedy depends on whether the measure is administrative or part of a criminal investigation.

What if the foreign supplier created the false document?

Supplier responsibility can be highly relevant, but the Turkish importer’s position before Customs must still be addressed separately. Contractual claims against the supplier may also arise.

Can a customs broker be responsible?

Potentially, depending on what the broker knew, received, prepared or submitted. The broker’s role should be reconstructed from original records.

Should the company replace the incorrect document immediately?

The company should preserve the original disputed document and use the legally appropriate correction procedure. It should never create or backdate evidence to conceal the original problem.

Can Customs review older imports?

Potentially. If the same supplier or documentation was used historically, previous declarations may become relevant.

Does re-export end the investigation?

Not necessarily. If goods have been seized or a criminal investigation has begun, re-export may not resolve existing customs or criminal issues.

Can company managers be investigated personally?

Potentially, depending on their individual involvement, knowledge and conduct. Personal liability should not be assumed solely from corporate title.

What is the most important first step?

Determine exactly which document is alleged to be false and reconstruct its complete history—from creation and transmission to its use in the customs declaration. At the same time, identify whether the goods are merely under customs detention or have been formally seized in a criminal investigation, because the available legal remedies can be fundamentally different.

Client-Focused Legal Support for Customs Seizure and False-Documentation Investigations

Customs false-document allegations can expose foreign businesses to goods seizure, additional customs duties, administrative penalties, origin and valuation investigations, anti-smuggling proceedings, criminal investigations and potential confiscation risks. Fırat Fesih Kaya Law Office assists foreign manufacturers, exporters, investors and Turkish importers facing complex customs investigations in Turkey. Lawyer Fırat Fesih Kaya provides legal assistance in examining disputed customs documents, challenging seizure measures, coordinating evidence with foreign manufacturers and suppliers, defending customs assessments and penalties, and managing parallel customs and criminal proceedings.

Phone: +90 312 434 22 22

Mobile: +90 532 769 22 22

Email: info@firatfesihkaya.av.tr

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