International trade frequently involves parties located in different jurisdictions, each subject to its own legal system. Without a uniform legal framework, cross-border commercial disputes may become unpredictable, particularly when different national laws provide different solutions to the same contractual issue.

To reduce this uncertainty, the United Nations Convention on Contracts for the International Sale of Goods (CISG), also known as the Vienna Convention, establishes a harmonized legal framework governing international sale of goods contracts. Today, the CISG is one of the world’s most successful international commercial treaties and applies to transactions involving businesses from more than ninety Contracting States.

As Türkiye is a Contracting State, the CISG may apply directly to many international commercial contracts involving Turkish companies.

What Is the CISG?

The CISG is an international treaty adopted by the United Nations Commission on International Trade Law (UNCITRAL) in 1980. Its purpose is to provide uniform rules governing international sale of goods contracts, reducing legal uncertainty and facilitating international trade.

The Convention regulates matters including:

• formation of international sales contracts;
• obligations of buyers and sellers;
• delivery of goods;
• conformity of goods;
• inspection and notice requirements;
• remedies for breach of contract;
• damages;
• avoidance (termination) of contracts.

Unlike domestic sales legislation, the CISG was specifically designed for international commercial transactions.

Does the CISG Apply in Turkey?

Yes.

Türkiye became a Contracting State to the CISG in 2011. Consequently, Turkish courts and arbitral tribunals may apply the Convention whenever its requirements are satisfied.

Importantly, the CISG forms part of Turkish law. Therefore, international commercial disputes should not automatically be analyzed solely under the Turkish Code of Obligations or the Turkish Commercial Code. The applicability of the CISG should always be considered first.

When Does the CISG Apply?

The Convention generally applies when:

• the parties have their places of business in different countries;
• the contract concerns the international sale of goods;
• the relevant jurisdictional requirements under Article 1 of the Convention are satisfied; and
• the parties have not expressly excluded the CISG.

In many international transactions involving Turkish exporters, manufacturers, distributors or foreign buyers, these conditions are frequently met.

Contracts Outside the Scope of the CISG

The Convention does not apply to every commercial transaction.

Among the excluded transactions are:

• consumer purchases;
• auction sales;
• judicial sales;
• securities and negotiable instruments;
• money;
• ships;
• vessels;
• hovercraft;
• aircraft; and
• electricity.

Determining whether a transaction falls within or outside these exclusions may significantly affect the legal analysis of a dispute.

Common International Sale of Goods Disputes

Commercial disputes under the CISG frequently involve issues such as:

Non-Delivery of Goods

The seller fails to deliver all or part of the contracted goods.

Defective or Non-Conforming Goods

The delivered products do not comply with contractual specifications, agreed quality standards or technical requirements.

Late Delivery

Delivery delays may expose the seller to contractual remedies, provided the applicable requirements under the Convention are fulfilled.

Payment Disputes

International transactions often involve documentary credits, bank transfers or staged payments, giving rise to disputes concerning payment obligations.

Damages

The CISG provides its own framework for recovering damages resulting from contractual breaches, including, in appropriate circumstances, lost profits.

Why Early Legal Assessment Matters

Many international disputes become more difficult because the parties initially assume that domestic law exclusively governs their contract.

However, questions such as the following should be examined before any substantive legal analysis:

• Does the CISG apply?
• Has the Convention been expressly excluded?
• Which court or arbitral tribunal has jurisdiction?
• What governing law clause exists?
• Were inspection and notification obligations properly fulfilled?
• Are documentary records sufficient to support the claim?

Addressing these issues early may significantly influence litigation or arbitration strategy.

Can Parties Exclude the CISG?

Yes.

Article 6 of the Convention allows commercial parties to exclude its application.

However, an important practical point is often overlooked.

Simply stating that “Turkish law governs the contract” may not automatically exclude the CISG because the Convention forms part of Turkish law. If the parties intend to opt out of the CISG, the exclusion should be drafted expressly and unambiguously.

CISG Before Turkish Courts

Although Türkiye has applied the CISG since 2011, judicial practice remains relatively limited compared with many European jurisdictions.

As international trade involving Turkish companies continues to expand, CISG-related disputes are becoming increasingly important in litigation and arbitration.

Correct identification of the applicable legal framework may affect issues such as:

• contractual remedies;
• notice requirements;
• burden of proof;
• damages;
• contract termination; and
• interpretation of contractual obligations.

International Arbitration and the CISG

Many international sale contracts contain arbitration clauses.

Where the CISG applies, arbitral tribunals frequently interpret contractual rights directly under the Convention rather than relying solely upon domestic legislation.

For businesses involved in cross-border trade, careful contract drafting and early legal analysis can reduce uncertainty before disputes arise.

Frequently Asked Questions

Does the CISG replace Turkish law?

Not entirely. The CISG governs matters falling within its scope, while issues outside the Convention remain subject to the applicable domestic law.

Can the CISG apply even if Turkish law governs the contract?

Yes. Since the CISG forms part of Turkish law, selecting Turkish law does not necessarily exclude the Convention.

Does the CISG apply to consumer contracts?

Generally, no. The Convention primarily governs international commercial sales.

Can businesses opt out of the CISG?

Yes. Commercial parties may exclude the Convention expressly under Article 6.

Conclusion

The CISG is one of the most important legal instruments governing international sale of goods contracts. For businesses trading with Turkish companies or conducting cross-border commercial transactions involving Türkiye, determining whether the Convention applies should be one of the first legal questions considered.

Issues relating to contract formation, delivery, conformity of goods, damages and contractual remedies may all be governed by the Convention rather than domestic sales legislation. A proper understanding of the applicable legal framework can therefore play a significant role in managing commercial risk and resolving international trade disputes.

At Cindemir Law Office, international trade law forms part of our broader cross-border legal practice. We assist businesses with international commercial contracts, dispute resolution, arbitration and litigation involving Turkish law and international legal instruments, including the CISG, where applicable.