Customs Requests Foreign Supplier Bank Records: How Can the Import Price Be Proven? — 2026 Current Guide

What should foreign suppliers do when Turkish Customs requests bank records? Learn how to prove the import price, reconcile payments, protect confidential data and challenge customs valuation assessments in 2026.

When Turkish Customs questions the declared customs value, it may request evidence from the Turkish importer and, in some cases, from the foreign supplier. Bank records are often requested to determine whether the invoice price reflects the price actually paid or payable for the imported goods.

A bank transfer alone does not automatically prove the correct customs value. Customs may also examine contracts, payment terms, credit notes, freight, royalties, commissions, related-party transactions and accounting records. The objective is to establish whether the declared import price is genuine and whether legally required additions were omitted.

Why Does Turkish Customs Request Foreign Supplier Bank Records?

A bank-record request may arise because:

• The declared price appears unusually low;
• The payment differs from the invoice amount;
• Several invoices were paid in one transfer;
• Payments were made by a group company or third party;
• The importer and supplier are related;
• Credit notes or rebates were issued after importation;
• The goods were supplied on consignment;
• The shipment was free of charge or partly prepaid;
• Customs suspects undeclared royalties or commissions;
• The transaction forms part of a post-clearance audit.

Turkish Customs generally seeks to verify the transaction value rather than simply replace the invoice with a reference price. The Ministry of Trade explains the customs valuation methods and transaction-value principles in its official customs valuation guidance.

Transaction Value: The Starting Point

The primary valuation method is generally the transaction value, meaning the price actually paid or payable for goods sold for export to Turkey, subject to legally required adjustments.

The transaction value may be accepted where:

• There are no prohibited restrictions on the buyer’s use of the goods;
• The sale is not subject to an unquantifiable condition;
• Any resale proceeds payable to the seller can be calculated;
• The relationship between buyer and seller did not influence the price;
• The price can be supported by objective and verifiable records.

If the transaction value cannot be accepted, Customs may apply alternative methods based on identical goods, similar goods, deductive value, computed value or a fallback method.

What Do Bank Records Prove?

Bank records can help establish:

• The amount actually transferred;
• The date of payment;
• The paying entity;
• The receiving entity;
• The currency used;
• The invoice reference;
• Whether payment was made in instalments;
• Whether a discount or credit was applied;
• Whether the importer paid a third party;
• Whether an amount remains outstanding.

However, bank records must be reconciled with the commercial documentation. A payment may include several invoices, freight, insurance, service fees or other transactions. A difference between the transfer and invoice amount does not necessarily prove undervaluation, but it must be explained.

Documents That Can Support the Import Price

The importer and foreign supplier should prepare:

• Sales contracts;
• Purchase orders;
• Commercial invoices;
• Pro forma invoices;
• Bank statements;
• SWIFT confirmations;
• Payment instructions;
• Letters of credit;
• Advance-payment records;
• Credit and debit notes;
• Account statements;
• Reconciliation tables;
• Price lists;
• Discount agreements;
• Freight and insurance invoices;
• Royalty and licence agreements;
• Commission agreements;
• Transfer-pricing documentation;
• Correspondence concerning price negotiations;
• Customs declarations;
• Delivery and warehouse records.

The strongest submission normally includes a transaction-by-transaction reconciliation showing how each customs declaration corresponds to an invoice and payment.

How Should Payment Differences Be Explained?

Payment differences may result from legitimate commercial reasons, including:

• Advance payments;
• Partial shipments;
• Instalment payments;
• Volume rebates;
• Year-end rebates;
• Warranty credits;
• Quality claims;
• Currency fluctuations;
• Bank charges;
• Set-off arrangements;
• Payments for several shipments;
• Payments made by a parent or group company;
• Freight or insurance paid separately.

The company should explain the difference in writing and attach objective evidence. A vague statement such as “the accounts were settled later” may not satisfy Customs.

If a payment was made by a third party, the parties should explain the legal relationship and confirm whether the payment relates to the imported goods.

Related-Party Transactions

Where the importer and foreign supplier are related, Turkish Customs may examine whether the relationship influenced the price.

Relevant records may include:

• Group structure;
• Shareholding information;
• Intercompany agreements;
• Transfer-pricing reports;
• Comparable uncontrolled prices;
• Resale-price calculations;
• Cost-plus analyses;
• Profit margins;
• Year-end adjustments;
• Board approvals;
• Group financing documents.

A related-party transaction is not automatically unacceptable. The importer should demonstrate that the price was determined in accordance with commercial circumstances and that the relationship did not distort the amount declared to Customs.

Transfer-pricing records and customs valuation records serve different purposes. A price accepted for corporate-income-tax purposes may still require a separate customs explanation.

Customs Additions to the Import Price

Even if the bank records confirm the invoice amount, Customs may ask whether legally required additions were omitted.

Potential additions may include:

• Commissions and brokerage, except buying commissions;
• Container costs;
• Packing costs;
• Materials and components supplied free of charge or at reduced cost;
• Tools, moulds and production equipment;
• Engineering and design work performed outside Turkey;
• Royalties and licence fees that are a condition of sale;
• Resale proceeds accruing to the seller;
• Transport and insurance costs up to the Turkish entry point.

These additions should be supported by objective and quantifiable data. Not every payment is automatically added to customs value.

Amounts that may be excluded if separately identified can include:

• Transport after arrival in Turkey;
• Post-importation assembly or technical assistance;
• Certain financing interest;
• Buying commissions;
• Import duties and domestic taxes.

The legal and factual character of each payment must be analysed separately.

Bank Secrecy and Confidential Information

A foreign supplier may be concerned about disclosing bank records, customer information or group pricing data. The company should first verify:

• The authenticity of the request;
• The authority requesting the documents;
• The legal basis;
• The specific shipment or declarations covered;
• The applicable response deadline;
• The approved submission channel.

Where legally permissible, the supplier may provide transaction-specific extracts, redact unrelated customer information and use a confidentiality agreement. It should not send complete banking histories unrelated to the investigation without understanding the scope of the request.

If Turkish Customs is conducting verification through a foreign customs administration, the supplier should follow the official channel rather than sending sensitive records to an unverified email address.

What If the Supplier Cannot Provide Bank Records?

The supplier should explain why the requested records cannot be produced and provide alternative evidence, such as:

• Bank confirmation letters;
• Payment certificates;
• Audited accounting extracts;
• Customer account statements;
• Payment-platform records;
• Letters of credit;
• Independent auditor confirmations;
• Contractual payment schedules;
• Tax or accounting records;
• Official customs correspondence.

Failure to provide any response may cause Customs to reject the transaction value and apply an alternative valuation method. A reasoned explanation supported by alternative evidence is usually stronger than silence.

Risks of an Unaccepted Customs Value

If Turkish Customs concludes that the declared import price is deficient, the importer may face:

• Additional customs duty;
• Additional customs duties based on origin or product;
• Import VAT on the revised customs base;
• Interest;
• Administrative customs penalties;
• Storage and demurrage costs;
• Commercial disruption;
• Contractual claims against the supplier.

Under the customs penalty framework, a deficient declaration of value may lead to a penalty in addition to the duty difference. The level of the penalty depends on the nature and amount of the discrepancy, whether it resulted from a formal accounting error and the applicable provision.

Where Customs suspects intentional falsification, fabricated invoices or deliberate duty evasion, further investigation may be considered. A payment discrepancy alone does not automatically establish fraud.

Post-Clearance Audits and Limitation

Customs valuation can be reviewed after the goods have been released. A post-clearance audit may cover multiple declarations and several accounting periods.

Under the general framework of Customs Law No. 4458, under-assessed customs duties may generally be notified within three years from the date the customs debt arose, subject to statutory exceptions.

The importer should review:

• The date of each declaration;
• The date the customs debt arose;
• The date of notification;
• The declarations included in the audit;
• Any interruption or suspension of limitation;
• Whether the assessment includes unrelated transactions.

How Can the Importer Challenge the Assessment?

The importer should request the complete assessment, valuation method and calculation. The objection may argue that:

• The transaction value was properly declared;
• Bank records confirm the invoice price;
• Payment differences have a legitimate explanation;
• Customs ignored relevant discounts or credits;
• A royalty was incorrectly included;
• Post-import costs were wrongly added;
• The alternative valuation method was applied prematurely;
• The relationship did not influence the price;
• The penalty was incorrectly calculated;
• Notification or limitation rules were breached.

Under Article 242 of Customs Law No. 4458, an objection is generally filed within 15 days from lawful notification of the customs decision.

If the objection is rejected, proceedings may be brought before the competent tax court within the applicable procedural period. A separate suspension-of-execution request may be necessary because an objection or lawsuit does not automatically suspend collection.

Settlement may be available for certain customs debts and penalties. The importer should compare settlement with litigation and any contractual claim against the foreign supplier.

2026 Compliance Priorities

In 2026, customs authorities increasingly compare declaration data with electronic invoices, ERP records, bank information, freight systems and transfer-pricing documentation.

International companies should therefore:

• Maintain transaction-level payment reconciliations;
• Keep original electronic accounting records;
• Separate freight and post-import costs;
• Document discounts before shipment;
• Update related-party pricing files;
• Record royalty and licence arrangements;
• Establish a secure customs-response protocol;
• Train finance, sales and logistics teams;
• Retain documents for the required legal period;
• Obtain legal advice before submitting sensitive bank records.

Practical Response Checklist

When Customs requests foreign supplier bank records, the company should:

1. Verify the request and authority.
2. Identify the relevant declarations and invoices.
3. Confirm the response deadline.
4. Prepare a payment reconciliation.
5. Explain all differences between invoice and transfer.
6. Review related-party arrangements.
7. Analyse royalties, commissions and assists.
8. Separate unrelated banking information.
9. Submit objective supporting documents.
10. Preserve proof of submission.
11. Monitor the importer’s objection deadline.
12. Obtain specialist customs-law advice.

Frequently Asked Questions (FAQ)

1. Can Turkish Customs request a foreign supplier’s bank records?

It may request payment evidence through the importer, exporter or the relevant customs administration during valuation verification.

2. Does a bank transfer prove the customs value?

It is important evidence, but Customs may also examine contracts, invoices, discounts, freight, royalties and related-party transactions.

3. What if one payment covers several invoices?

The company should provide a detailed reconciliation identifying the amount allocated to each invoice and shipment.

4. What if the importer has not paid the supplier yet?

The company can provide the contract, payment terms, accounts payable records, purchase order and other evidence showing the price payable.

5. Can a parent company pay the foreign supplier?

Yes, but the relationship and reason for the third-party payment should be documented clearly.

6. Are royalties always included in customs value?

No. Their connection to the imported goods and whether they are a condition of sale must be assessed.

7. Can Turkish Customs inspect transfer-pricing records?

Yes, especially where the importer and supplier are related or year-end adjustments affect the import price.

8. What happens if the supplier refuses to provide bank records?

Customs may reject the transaction value. The supplier should instead provide a reasoned explanation and alternative objective evidence.

9. What is the Turkish objection deadline against a valuation assessment?

An objection is generally filed within 15 days from lawful notification under Article 242 of Customs Law No. 4458.

10. Can the importer challenge an alternative valuation method?

Yes. The importer may argue that the transaction value was usable or that Customs applied the alternative method incorrectly.

This article is intended for general informational purposes only. To avoid any loss of rights, we recommend consulting your lawyer regarding your specific circumstances.

Legal Support for Customs Valuation Investigations

Fırat Fesih Kaya Law Office advises foreign suppliers, international groups, Turkish importers, manufacturers, distributors and logistics companies on customs valuation investigations and payment-evidence disputes.

Lawyer Fırat Fesih Kaya can assist with bank-record requests, transaction-value analysis, related-party pricing, royalty assessments, customs audits, additional-duty disputes, administrative objections and tax-court proceedings.

For urgent legal support:

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