Customs Authorities Increase the Declared Value of Goods in Turkey: How Can the Importer Appeal? (2026 Updated Guide)

Turkish Customs increases the declared customs value of imported goods. Learn how importers can challenge the valuation, prove the transaction value, contest additional duties and penalties, and protect their rights in Turkey.

When Turkish Customs rejects or increases the declared value of imported goods, the financial consequences can extend far beyond a small adjustment to the customs declaration. A higher customs value may result in additional customs duties, import VAT and other import charges, while a separate customs penalty may also be imposed depending on the circumstances. The dispute can become particularly significant for foreign-owned Turkish companies, related-party imports, machinery, components, luxury goods and transactions involving royalties, assists, discounts or year-end price adjustments.

The importer should not assume that Customs may simply replace the commercial invoice price with any higher figure it considers appropriate. Customs valuation follows a structured legal framework. The first questions are why the declared transaction value was rejected, which valuation method Customs used instead, what evidence supports the higher value and whether the resulting additional assessment and penalty were calculated correctly.

What Is Customs Value?

Customs value is the value determined under customs valuation rules for calculating applicable import duties and other charges whose assessment depends on that value.

In many ordinary import transactions, the starting point is the transaction value—that is, the price actually paid or payable for the goods when sold for export to Turkey, subject to legally required conditions and adjustments.

The invoice price and customs value, however, are not always identical.

Why Can Turkish Customs Question the Declared Value?

Customs authorities may scrutinize a declaration where they consider the declared price unusually low, identify inconsistent commercial documents, discover undeclared payments, find a relationship between buyer and seller, identify royalty or licence payments, detect free components or other assists, discover post-import payments or compare the transaction with other import data.

A low price alone should not automatically end the valuation analysis. The importer should determine the precise factual and legal reason Customs relies upon.

Obtain the Formal Valuation Decision

The importer should obtain the official additional assessment, valuation decision or other relevant administrative document.

Do not rely solely on a customs broker’s statement that “Customs increased the value.”

The written decision should be examined to determine the disputed declaration, amount added to the value, valuation methodology, additional duties and any associated penalty.

Record the Notification Date Immediately

Customs disputes are highly deadline-sensitive. Once an additional assessment or administrative decision is notified, the applicable objection period should be calculated immediately.

Internal discussions with the supplier, customs broker or accounting department should not be allowed to consume the formal appeal period.

Can the Importer Challenge the Increased Customs Value?

Yes, an importer may challenge a customs valuation decision through the applicable customs objection procedure and, if necessary, judicial proceedings.

The objection should not merely state that the declared price is correct. It should explain why the transaction satisfies the valuation requirements and why the authority’s alternative calculation is legally or factually incorrect.

The Transaction Value Is the Starting Point

Where the legal requirements for transaction-value treatment are satisfied, the importer should build its defense around the genuine commercial transaction.

This normally requires evidence showing what was purchased, the agreed price, how payment was made and whether additional payments connected with the imported goods existed.

Commercial Invoice Is Important but May Not Be Enough

An invoice is fundamental evidence, but Customs may examine the underlying transaction.

The importer should therefore be prepared to produce purchase contracts, purchase orders, bank payment records, accounting entries, correspondence, price lists and other records demonstrating that the invoice reflects the genuine commercial arrangement.

Bank Payment Records Can Be Critical

Payment evidence can help demonstrate that the declared invoice amount corresponds to the actual price paid or payable.

If payments were divided between several accounts or made through an affiliate, the structure should be explained transparently.

Undeclared Side Payments Create Serious Risk

Customs may become particularly concerned where the importer pays the supplier amounts outside the commercial invoice.

Any separate payment should be analyzed to determine whether it relates to the imported goods and whether it should have been included in customs value.

Attempting to disguise part of the purchase price as another payment can create substantially greater customs and potentially criminal exposure.

Related-Party Imports Require Careful Analysis

Transactions between a Turkish subsidiary and its foreign parent, sister company or other related entity may receive additional scrutiny.

The existence of a relationship does not by itself mean that the invoice price must automatically be rejected. The key valuation question is whether the relationship affected the price under the applicable rules.

Prepare Transfer-Pricing Evidence Carefully

Transfer-pricing documentation may provide useful commercial evidence, but customs valuation and corporate tax transfer pricing are not identical legal regimes.

A transfer-pricing report should therefore not automatically be treated as conclusive proof of customs value.

Comparable Import Prices May Be Used in the Dispute

Customs may compare the declared price with identical or similar goods. If a higher comparable value is relied upon, examine whether the goods are genuinely comparable.

Brand, model, quantity, commercial level, contractual terms, timing and technical characteristics can materially affect price.

Different Products Should Not Be Treated as Identical Without Analysis

A machine with different capacity, a component produced from a different material or goods sold in substantially different quantities may legitimately have different prices.

Prepare a technical and commercial comparison where Customs relies on another import transaction.

Timing of Comparable Transactions Matters

Market prices can change significantly. Raw-material costs, exchange rates, product life cycles and commercial conditions may produce different prices at different dates.

The importer should examine when the comparison transaction occurred.

Quantity Discounts Can Explain a Lower Price

Large-volume purchasers may receive substantially lower unit prices.

Preserve contracts, pricing schedules and supplier correspondence demonstrating genuine quantity discounts.

Distributor Discounts May Also Be Legitimate

A long-term distributor may receive prices unavailable to occasional purchasers.

The commercial rationale should be documented before Customs interprets the lower price as evidence of undervaluation.

Distressed or Clearance Sales Require Evidence

Products may legitimately be sold below ordinary prices because they are obsolete, damaged, end-of-line, excess inventory or part of a genuine liquidation.

These explanations should be supported by contemporaneous commercial evidence.

Free-of-Charge Goods Need Separate Analysis

Samples, replacement parts, warranty goods and promotional products may be supplied without an invoice price.

A zero commercial price does not necessarily mean that the goods have no customs value. The appropriate valuation treatment should be determined separately.

Royalties and Licence Fees Can Affect Customs Value

A customs audit may identify royalties, trademark fees, technology licence payments or similar amounts.

The legal analysis should determine whether the payment relates to the imported goods and whether the conditions for inclusion in customs value are satisfied.

Not every royalty paid by an importer should automatically be added to customs value.

Assists Can Increase Customs Value

The Turkish buyer may provide molds, tools, components, designs or other items to the foreign manufacturer free of charge or at reduced cost.

Depending on the circumstances, these contributions can affect customs value.

The importer should therefore review the complete manufacturing arrangement rather than focusing solely on cash paid against the invoice.

Foreign Engineering and Design Costs Require Analysis

Where design, engineering or development work is connected with imported goods, determine where the work was performed, who supplied it and how it relates to production.

The valuation treatment depends on the specific legal and factual circumstances.

Post-Import Payments Should Be Investigated

Payments made months after importation can trigger customs questions.

Year-end adjustments, debit notes, management charges, royalties and transfer-pricing adjustments should be examined to determine whether they relate to the imported goods.

Year-End Transfer-Pricing Adjustments Can Create Customs Exposure

Multinational groups frequently adjust intercompany prices after the financial year.

Where those adjustments effectively change the price of imported goods, customs consequences may need to be evaluated declaration by declaration.

Customs Must Follow the Valuation Framework

If the transaction value cannot lawfully be used, alternative valuation methods should be considered within the applicable customs valuation framework.

The importer should examine whether Customs moved to another method on a legally sufficient basis and whether the methodology was applied correctly.

Customs Cannot Simply Invent a Value

A valuation increase should have an identifiable legal and evidentiary basis.

The importer should request clarification concerning the source of the replacement value, comparison goods, adjustments and calculations.

Ask for the Evidence Supporting the Increased Value

Where Customs relies on comparable imports or other data, determine what information can legally be disclosed and challenge unexplained assumptions.

An importer cannot meaningfully defend itself against a valuation adjustment if it does not understand the factual basis of the calculation.

Confidential Third-Party Data Can Create Difficult Issues

Customs may possess commercial information concerning other importers that cannot simply be disclosed in full.

Nevertheless, the importer should seek sufficient reasoning to understand and challenge the valuation methodology while respecting legitimate confidentiality restrictions.

Review the Tariff Classification Too

A valuation dispute may coexist with a classification dispute.

If Customs changes both the tariff code and value, separate the two issues and calculate how each adjustment affects the final customs debt.

Review Country of Origin

Origin can also affect the applicable duty rate. An incorrect origin finding combined with a higher customs value can substantially multiply exposure.

Each legal issue should be challenged on its own factual basis.

Additional Duties and VAT Must Be Recalculated

After Customs increases the value, verify every resulting amount.

Do not assume the administration’s arithmetic is automatically correct. Review the customs duty, additional import charges, import VAT and any other value-dependent amount separately.

Penalty Liability Is a Separate Question

An increased customs value may be accompanied by an administrative penalty. The importer should not treat the additional customs debt and penalty as a single legal issue.

Even if some additional duty is ultimately payable, the factual and legal conditions for imposing a penalty should be examined separately.

A Genuine Valuation Dispute Is Not Automatically Fraud

Complex customs valuation questions can produce legitimate legal disagreements.

Related-party pricing, royalties, assists, discounts and post-import adjustments can require sophisticated analysis. An incorrect declaration should not automatically be equated with deliberate falsification without examining the facts.

False Invoices Create Much Greater Risk

The situation changes materially where authorities suspect fabricated invoices, concealed payments, dual invoicing or deliberately false commercial documents.

Such allegations can potentially move the matter beyond an ordinary administrative valuation dispute and require immediate assessment of possible criminal exposure.

Preserve Electronic Correspondence

Emails, purchase negotiations and internal approval records may demonstrate how the price was established.

They can be particularly useful where Customs alleges that the invoice does not reflect the real commercial agreement.

Do Not Delete or Reconstruct Records

Once an audit or valuation dispute begins, preserve original accounting and commercial records.

Retrospectively creating documents to justify a declared value can seriously undermine the company’s position.

Review the Customs Broker’s File

Obtain the documents and instructions supplied to the broker when the declaration was prepared.

Determine whether the broker received information concerning royalties, assists, discounts or related-party arrangements.

Customs Broker Responsibility May Be Relevant

Depending on the circumstances, a broker may have contributed to an incorrect declaration.

However, contractual responsibility between importer and broker is separate from the importer’s public-law obligations toward Customs.

Foreign Supplier Responsibility Should Be Examined

If the foreign supplier issued incorrect invoices, concealed relevant information or provided inaccurate valuation data, the importer may have contractual claims.

Preserve supply agreements and correspondence.

Review Valuation Warranties in the Contract

International supply contracts should address invoice accuracy, customs information, royalties, assists, cooperation during audits and indemnification for inaccurate supplier representations.

This becomes particularly important for repeated imports.

Historical Imports Must Be Reviewed

A valuation adjustment affecting one declaration may cause Customs to examine previous transactions involving the same supplier or pricing methodology.

The company should conduct its own historical review immediately.

Create a Declaration-by-Declaration Matrix

For recurring imports, record the declaration date, supplier, invoice value, customs value, product, payment, royalty, discount, related-party status and any subsequent adjustment.

This allows the importer to estimate potential exposure accurately.

Do Not Assume Every Historical Declaration Has the Same Problem

Supplier relationships, contract terms and pricing structures can change.

Each relevant period should be analyzed according to the actual facts.

What Should the Customs Objection Include?

A strong objection should identify the disputed assessment, explain the transaction structure, defend the declared valuation method, challenge Customs’ alternative methodology and attach relevant evidence.

Where several valuation issues exist, address each one separately.

Use Accounting Evidence

Customs valuation disputes frequently turn on whether commercial claims can be verified.

Bank statements, ledgers, supplier accounts, invoices and payment reconciliations can therefore be as important as legal arguments.

Technical Evidence May Also Be Necessary

If Customs relies on a supposedly comparable product, technical evidence can demonstrate that the products differ materially.

Manufacturer specifications, drawings and expert reports may be useful.

Independent Expert Analysis Can Strengthen Complex Cases

Large valuation disputes may require customs, accounting, financial and technical expertise simultaneously.

An expert report can help explain related-party pricing, comparable products, royalties or manufacturing arrangements.

Protect the Customs Objection Deadline

Under the general customs objection framework, decisions concerning customs duties and related administrative matters are subject to short procedural periods.

The importer should determine the applicable deadline immediately after notification and file the necessary objection without waiting for lengthy negotiations with the foreign supplier.

What If the Customs Objection Is Rejected?

Where the administrative objection is unsuccessful, judicial review before the competent administrative judiciary may become available under the applicable framework.

The litigation file should contain the complete valuation evidence rather than relying only on the commercial invoice.

Can Collection Be Suspended?

The effect of administrative objections and litigation on payment or enforcement depends on the applicable procedural framework and stage of the case.

The importer should assess payment, security and interim judicial protection separately rather than assuming that filing a lawsuit automatically resolves the collection risk.

Can Overpaid Customs Duties Be Recovered?

If the importer successfully establishes that customs duties were not legally due, the applicable repayment procedure should be evaluated.

Time limits, declaration-specific calculations and the legal basis of the repayment claim should be reviewed carefully.

Review Goods Currently in Transit

If Customs has rejected the pricing methodology for one shipment, identical goods already travelling to Turkey may face the same issue.

Prepare supporting valuation evidence before those shipments arrive.

Correct Future Declarations Where Necessary

If the internal review reveals a genuine customs valuation problem, the company should determine the lawful corrective procedure for future and, where appropriate, historical declarations.

Continuing the same known error can substantially increase exposure.

Build a Customs Valuation File Before Importation

For recurring imports, maintain a permanent file containing the supply contract, pricing methodology, related-party analysis, royalties, assists, discounts, transfer-pricing information and payment structure.

This allows the importer to respond quickly when Customs questions the declared value.

2026 Practical Appeal Strategy

A company facing an increased customs value in Turkey should immediately obtain the formal decision, record the notification date, protect the applicable objection period, identify why transaction value was rejected, reconstruct the complete payment structure, collect contracts and banking records, review related-party relationships, analyze royalties and assists, challenge unsuitable comparable values, recalculate all resulting duties and penalties, review historical declarations and prepare for administrative litigation if the objection is rejected.

Frequently Asked Questions

Can Turkish Customs reject the commercial invoice value?

Potentially, where the legal conditions for using the declared transaction value are not satisfied or Customs has legally sufficient grounds under the valuation framework. The precise reason should be identified and challenged where appropriate.

Is a low invoice price enough to increase customs value?

A low price may trigger scrutiny, but the valuation analysis should follow the applicable legal framework. The importer should provide evidence explaining genuine commercial reasons for the price.

Can Customs compare my goods with another importer’s goods?

Comparable transaction information may become relevant under the valuation framework, but the importer should examine whether the goods and commercial circumstances are genuinely comparable.

Does a related foreign supplier automatically make the invoice value unacceptable?

No. The relationship itself should be distinguished from the question whether that relationship influenced the price under the applicable valuation rules.

Can royalties be added to customs value?

Certain royalties or licence fees may be included where the legal requirements are satisfied. Not every royalty paid by the importer automatically forms part of customs value.

Can a year-end transfer-pricing adjustment affect customs value?

Potentially. The company should determine whether the adjustment effectively changes the price of imported goods and analyze its customs consequences.

Can Customs impose both additional duty and a penalty?

Potentially. However, the additional customs debt and penalty should be reviewed separately because they involve distinct legal questions.

Can the importer appeal the valuation decision?

Yes. The importer should use the applicable customs objection procedure within the relevant deadline and may subsequently evaluate judicial remedies if the objection is rejected.

Can previous imports also be investigated?

Yes. A valuation finding may lead Customs to examine historical transactions involving the same supplier or pricing methodology. Each declaration should nevertheless be assessed according to its own facts.

What is the strongest defense against an increased customs value?

A complete transaction file showing the genuine commercial price and payment structure—including contracts, invoices, bank payments, accounting records, discounts, royalties, assists and related-party information—combined with a legal analysis demonstrating why the declared valuation method is correct and why Customs’ alternative calculation is not.

Client-Focused Legal Support for Customs Valuation Disputes

An incorrect customs valuation adjustment can lead to substantial additional customs duties, import taxes, administrative penalties, post-clearance audits and potential criminal allegations where false documentation is suspected. Fırat Fesih Kaya Law Office assists foreign manufacturers, international companies and Turkish importers in customs valuation disputes and post-clearance investigations. Lawyer Fırat Fesih Kaya provides legal assistance in reviewing customs valuation decisions, preparing administrative objections, analyzing related-party transactions, royalties and assists, coordinating accounting and technical evidence, challenging customs penalties and pursuing administrative litigation where necessary.

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