Turkish Customs applies an incorrect tax rate to imported goods. Learn how foreign companies can correct the declaration, challenge excessive duties, request repayment and prevent the same tax-rate error on future imports.

A foreign company importing goods into Turkey may discover that Customs has calculated import taxes using the wrong rate.

The problem may arise from:

• Incorrect tariff classification;
• Incorrect country of origin;
• Failure to apply preferential treatment;
• Incorrect additional customs duty;
• Incorrect anti-dumping treatment;
• Incorrect VAT rate;
• An outdated tariff rate;
• Incorrect declaration data.

The financial consequences can be substantial, particularly where the same rate has been applied to numerous shipments.

The first step is to determine why the wrong rate was applied. A tax-rate dispute is often actually a classification, origin or trade-measure dispute.

For 2026 imports, the applicable tariff and additional customs measures must be checked against the rules in force on the relevant import date; the Ministry’s current materials include the 2026 Turkish Customs Tariff Schedule and updated additional-customs-duty measures.

The recommended strategy is:

Identify the incorrect rate → determine why it was applied → verify the correct historical rate → correct the declaration where procedurally available → challenge any incorrect assessment → request repayment if excessive duty was already paid → review previous and future imports.

1. First Determine Which Tax Rate Is Wrong

Do not simply state that “Customs charged too much.”

Identify whether the problem concerns:

• Ordinary customs duty;
• Additional customs duty;
• Import VAT;
• Anti-dumping duty;
• Another import-related financial liability.

Different legal rules may determine each amount.

2. Check the Tariff Classification First

The customs duty rate normally depends heavily on the tariff classification of the imported product.

If Customs applies the wrong tariff code, the resulting tax rate may also be wrong.

The Ministry confirms that classification analysis should consider the Turkish Customs Tariff Schedule, explanatory materials and relevant classification decisions.

3. Do Not Rely Only on the Commercial Product Name

A product described commercially as a “machine component,” “chemical,” “electronic accessory” or “industrial part” may potentially fall within different tariff headings.

Classification should consider:

• Composition;
• Function;
• Technical characteristics;
• Manufacturing method;
• Intended use;
• Relevant tariff rules.

4. Obtain the Exact Tariff Code Used by Customs

Compare:

Tariff code declared by importer

with

tariff code applied by Customs.

Then identify the tax consequences of each.

5. Check the Rate Applicable on the Import Date

This is extremely important.

A rate applicable in September 2026 should not automatically be used to determine liability for goods imported in 2024 or 2025.

Customs measures can change.

Historical imports require historical rate analysis.

6. Origin Can Change the Applicable Rate

Two identical products may potentially attract different customs treatment because they originate in different countries.

Therefore, verify:

• Declared origin;
• Actual origin;
• Preferential origin;
• Supporting documents.

7. Shipping Country and Origin Are Different

Goods shipped from one country may originate in another.

This distinction can materially affect:

• Preferential customs duty;
• Additional customs duty;
• Anti-dumping measures.

Do not determine the rate solely from the country appearing on the transport route.

8. Preferential Treatment Should Be Checked

Where an applicable trade arrangement provides preferential treatment, determine whether the imported goods satisfied the relevant requirements.

Review the required historical documentation and origin rules.

An incorrect failure to apply preferential treatment may result in an overpayment.

9. Additional Customs Duty Requires Separate Analysis

Turkey applies additional customs duties to specified categories of imported goods.

The applicable rate can depend on the tariff code, origin and relevant measure. Current 2026 rules contain product-specific tables and origin-related conditions.

Therefore, ordinary customs duty and additional customs duty should be calculated separately.

10. Anti-Dumping Duty Is Not Ordinary Customs Duty

A company may believe that Customs merely used a higher “tax rate” when the real issue is application of an anti-dumping measure.

Check:

• Product scope;
• Tariff code;
• Origin;
• Manufacturer;
• Applicable historical measure.

Anti-dumping exposure can substantially exceed ordinary customs duty.

11. Check Whether the Wrong VAT Rate Was Applied

Import VAT can also become disputed.

The Ministry’s customs-value guidance expressly recognizes that incorrect declaration of a VAT rate may have consequences under the customs penalty framework where it produces an underpayment.

Where excessive VAT was charged instead, the company should determine the appropriate correction and recovery mechanism.

12. Calculate the Correct Liability Independently

Do not rely solely on the customs broker’s calculation.

Prepare:

Correct customs value

×

correct applicable rate

=

correct liability.

Then compare that amount with what Customs assessed or collected.

13. Prepare a Rate Comparison Table

For example:

Issue	Applied	Correct Position
Customs Duty	10%	5%
Additional Duty	15%	0%
Import VAT	Applied rate	Correct rate

This immediately identifies the financial effect of the dispute.

14. Determine Whether the Declaration Is Still Open

The correction procedure depends partly on the status of the customs declaration.

If the goods are still undergoing customs procedures, address the rate problem immediately.

Do not pay an obviously disputed amount merely because release is approaching without first considering the available legal options.

15. Closed Declarations Can Also Require Correction

The Ministry’s current guidance states that where customs procedures have been completed and a declaration has reached a closed or equivalent completed status, requests for correction, status changes or cancellation should first be made to the relevant customs directorate through an explanatory petition.

Therefore, release of the goods does not necessarily end the correction analysis.

16. Post-Release Correction Is Recognized in Customs Practice

Official Ministry guidance addressing repayment and remission explains that the Customs Law permits corrections to declarations in applicable circumstances, including after release of the goods.

This can become particularly important where the incorrect rate resulted from erroneous declaration data.

17. Correction and Refund Are Different Issues

Correcting the declaration does not necessarily mean that an overpayment automatically appears in the company’s bank account.

Two steps may be necessary:

correct the relevant customs record

and

seek repayment of the excessive amount.

18. Article 211 May Apply to Excessive Customs Payments

Where customs duties were paid even though they were not legally due, Article 211 of Customs Law No. 4458 provides the central repayment framework.

Official Ministry guidance confirms that duties determined to have been paid despite not being legally due are repaid under this framework.

19. Calculate the Overpayment Precisely

For example:

Customs value: TRY 10,000,000

Rate applied: 10%

Amount paid: TRY 1,000,000

Correct rate: 5%

Correct liability: TRY 500,000

Potential overpayment: TRY 500,000

The actual calculation may involve several different import taxes and should be performed individually.

20. Preserve Proof of Payment

Collect:

• Customs payment receipts;
• Bank records;
• Declaration;
• Assessment records;
• Accounting entries.

The company must prove what was actually paid.

21. Preserve the Legal Basis for the Correct Rate

Do not merely submit a spreadsheet.

Attach the legal and technical evidence demonstrating why the lower rate applies.

Depending on the case, this may include:

• Tariff classification evidence;
• Origin documents;
• Historical tariff rules;
• Technical specifications;
• Applicable trade measure.

22. Consider Binding Tariff Information for Future Imports

Where the problem arises from repeated uncertainty over tariff classification, Binding Tariff Information may help establish greater certainty for future transactions.

The Ministry confirms that qualifying applications can be made through the relevant tariff-information procedures.

23. Review Previous Imports of the Same Product

A rate error discovered today may have existed for years.

Search previous declarations involving:

• Same product;
• Same tariff code;
• Same origin;
• Same supplier.

This may reveal substantial historical overpayments.

24. Prepare a Historical Declaration Matrix

Record:

Declaration

Import date

Tariff code

Rate applied

Correct rate

Amount paid

Potential refund

Application deadline.

This allows the company to prioritize claims.

25. Check Repayment Deadlines Immediately

Do not delay the historical review.

Customs repayment claims are subject to statutory procedural periods.

Older declarations may therefore require urgent action.

26. File the Oldest Claims First Where Necessary

If dozens of declarations are involved, some may be approaching the applicable repayment deadline.

Protect those claims rather than waiting until every historical import has been fully audited.

27. If Customs Applies Too Low a Rate, the Problem Is Different

Sometimes the company discovers that Customs applied a rate lower than legally required.

That situation may create:

• Additional customs liability;
• Potential penalties;
• Voluntary-correction issues.

The company should immediately analyze whether a voluntary correction mechanism remains available before Customs independently discovers the error.

28. Do Not Assume a Customs Error Eliminates All Liability

Even if a customs officer or system initially applied the incorrect rate, the legal consequences depend on the circumstances.

The company should distinguish between:

• Incorrect administrative calculation;
• Incorrect declaration by importer;
• Incorrect broker entry;
• Subsequent change in Customs’ legal interpretation.

29. Broker Responsibility Should Be Reviewed

If the customs broker selected the incorrect rate or tariff treatment, obtain:

• Instructions;
• Declaration drafts;
• Emails;
• Tariff advice;
• Technical documents supplied.

Potential broker liability is separate from the customs correction or refund claim.

30. Supplier Information May Have Caused the Error

Incorrect:

• Origin;
• Product composition;
• Technical description

from the supplier may have produced the wrong rate.

Review contractual remedies separately.

31. Do Not Alter Historical Documents

Never backdate:

• Origin certificates;
• Invoices;
• Technical reports;
• Supplier declarations.

Use authentic historical evidence.

32. Challenge a Customs Refusal to Correct the Rate

If Customs refuses a properly supported correction or repayment request, obtain the formal written decision.

Record:

• Decision date;
• Notification date;
• Reason;
• Legal basis.

Then evaluate the applicable administrative objection procedure.

33. Protect Administrative Objection Deadlines

Do not allow informal discussions with Customs to replace formal procedural action.

A meeting with the customs office does not necessarily protect an objection deadline.

34. Judicial Review May Become Necessary

If Customs maintains an incorrect tax rate despite the company’s technical and legal evidence, judicial proceedings may be necessary after the applicable administrative procedures.

Prepare the potential court file early.

35. Technical Expert Evidence Can Be Important

For classification disputes, independent technical evidence may explain:

• Composition;
• Function;
• Manufacturing characteristics;
• Product identity.

This can be particularly valuable where the tax-rate dispute is actually a classification dispute.

36. Historical Evidence Is Better Than Current Evidence Alone

A product manufactured in 2026 may not be identical to the same commercial model imported in 2023.

For historical refunds, establish the technical characteristics of the goods at the time of import.

37. Review Incoming Shipments

Do not focus exclusively on recovering historical overpayments.

Immediately review:

• Goods at port;
• Goods in transit;
• Future purchase orders.

Otherwise, the same incorrect rate may continue to be applied.

38. Notify the Customs Broker of the Correct Future Treatment

Once the legal position is established, provide clear written instructions concerning:

• Tariff code;
• Origin;
• Applicable rate;
• Additional customs duty.

Avoid relying on informal telephone instructions.

39. Update Product Master Data

Many repeated customs errors originate in internal ERP or product databases.

Correct:

• Tariff code;
• Origin;
• Rate-related data;
• Customs instructions.

Otherwise, the same mistake may recur with another broker.

40. Quantify the Total Historical Exposure or Refund

Management should know:

Total declarations affected

Total tax paid

Correct tax

Potential repayment

Claims approaching deadline.

This converts a technical customs issue into a manageable corporate project.

41. Separate Confirmed Refunds From Disputed Refunds

Use categories such as:

Strong repayment claim

Technical classification dispute

Origin evidence incomplete

Deadline issue

This helps prioritize legal action.

42. Review Interest Separately

Where Customs collected excessive duties and repayment is later ordered, determine whether the applicable legal framework supports an additional interest claim.

Do not assume interest automatically accompanies every refund.

43. Correct Accounting Records

Coordinate the customs position with:

• Finance;
• Tax;
• Inventory accounting;
• External auditors.

The company’s accounting should accurately reflect any repayment receivable.

44. Implement a Tax-Rate Verification Control

Before future high-value imports, verify:

tariff code → origin → applicable customs duty → additional duty → trade-defense measure → import VAT.

This can prevent repeated overpayments.

45. Immediate Strategy When Customs Applies the Wrong Rate

The recommended sequence is:

Identify the tax concerned

→ verify the tariff classification

→ verify origin

→ identify the historical rate applicable on the import date

→ calculate the correct liability

→ determine declaration status

→ request correction where appropriate

→ calculate the overpayment

→ submit a repayment application if payment has already occurred

→ challenge any rejection

→ review historical declarations

→ correct future imports.

25-Point Wrong Customs Rate Checklist

1. Identify the declaration.
2. Identify the tax concerned.
3. Obtain the tariff code.
4. Verify product classification.
5. Verify origin.
6. Review preferential treatment.
7. Review additional customs duty.
8. Review anti-dumping measures.
9. Check import VAT.
10. Identify the import date.
11. Apply historical legislation.
12. Calculate the correct rate.
13. Calculate the correct tax.
14. Compare the amount paid.
15. Determine the overpayment.
16. Check declaration status.
17. Request correction where appropriate.
18. Preserve technical evidence.
19. Preserve origin evidence.
20. Preserve payment records.
21. Check repayment deadlines.
22. Review previous declarations.
23. Review incoming shipments.
24. Challenge an incorrect refusal.
25. Update internal customs controls.

Frequently Asked Questions

1. Can an incorrect customs tax rate be corrected after goods are released?

Potentially, yes. Turkish customs legislation recognizes post-release correction in applicable circumstances, and current Ministry guidance directs requests concerning completed declarations to the relevant customs directorate.

2. Can a foreign company recover customs duty paid because of the wrong rate?

Potentially, yes. If the company establishes that an amount was paid even though it was not legally due, the repayment framework under Article 211 may apply.

3. What if the wrong tariff code caused the excessive rate?

The company should establish the correct classification through technical and tariff analysis and then assess declaration correction and repayment procedures.

4. Can origin change the customs tax rate?

Yes. Origin can materially affect preferential treatment, additional customs duties and trade-defense measures.

5. Should the current 2026 rate be used for an import made in an earlier year?

Not automatically. Historical imports should be analyzed using the tariff and relevant trade measures applicable to the import in question.

6. What if Customs applies the wrong additional customs duty?

The company should verify the tariff code, origin and measure applicable on the import date. Current additional-customs-duty rules themselves contain product and origin-specific conditions.

7. Can the same error create refunds for multiple declarations?

Yes. If the same incorrect treatment was repeatedly applied, each affected declaration should be identified and the potential overpayment calculated.

8. What if Customs refuses to correct the rate?

Obtain the formal decision, record its notification date and assess the appropriate administrative objection and judicial remedies.

9. Should future imports continue using the disputed rate?

Current and incoming imports should be reviewed immediately. A confirmed error should not simply continue accumulating while historical claims are being prepared.

10. What is the most important first step?

Determine why the wrong rate was applied. In many cases, the apparent tax-rate problem is actually a tariff-classification, origin, preferential-treatment or additional-customs-duty dispute.

Client-Focused Legal Support for Incorrect Customs Tax Rates in Turkey

Incorrect customs rates may involve:

Wrong tariff classification

Excess customs duties

Additional customs duty

Import VAT

Preferential origin

Anti-dumping duties

Declaration correction

Customs repayment

and administrative objections.

Fırat Fesih Kaya Law Office assists foreign companies, multinational groups, manufacturers and importers facing incorrect customs tax calculations and excessive import duties in Turkey.

Lawyer Fırat Fesih Kaya provides legal assistance in identifying the correct tariff and tax treatment, reviewing historical declarations, preparing declaration-correction and repayment applications, challenging incorrect customs assessments and establishing compliant treatment for future imports.

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