Learn how breach of contract works under Turkish law, including non-performance, defective performance, default, damages, specific performance, termination, penalty clauses, late-payment interest, impossibility, limitation periods, and dispute resolution.
Introduction
Breach of contract in Turkey is primarily governed by the Turkish Code of Obligations No. 6098. The Code does not treat every breach in exactly the same way. Turkish law distinguishes between total non-performance, defective or incomplete performance, debtor default, impossibility, and contractual arrangements such as penalty clauses. Each category can trigger a different remedy. In commercial disputes, the Turkish Commercial Code also becomes important, especially for late payment and mandatory pre-litigation mediation in certain monetary claims.
For that reason, the legal question in Turkey is rarely limited to whether the contract was breached. The more important question is what type of breach occurred and which remedy follows from it. A creditor may seek performance, delay damages, damages for non-performance, contractual penalties, default interest, termination, or restitution, depending on the structure of the contract and the stage of the breach.
This guide explains the main legal consequences and remedies for breach of contract in Turkey in practical English. It focuses on the general regime under the Turkish Code of Obligations, while also noting key commercial-law consequences such as late-payment rules and mediation requirements for monetary commercial disputes.
What Counts as a Breach of Contract Under Turkish Law?
Under Turkish law, the starting point is Article 112 of the Turkish Code of Obligations. It provides that if an obligation is not performed at all or is not performed properly, the debtor must compensate the creditor’s loss unless the debtor proves that no fault is attributable to it. This is the core rule on contractual liability. It is broad enough to cover complete non-performance and improper performance, which is why many contract claims in Turkey begin with Article 112.
Article 113 then adds a particularly practical remedy for obligations to do or not to do something. If an obligation to perform an act is not fulfilled by the debtor, the creditor may ask for permission to have the performance carried out by itself or by a third party at the debtor’s expense, while preserving the right to claim damages. If the debtor breaches a negative obligation, the creditor may seek compensation and may also request removal of the situation created in violation of the obligation.
This means that Turkish law does not reduce contractual breach to a simple damages claim. Depending on the nature of the obligation, the creditor may pursue specific or substitute performance, removal of the unlawful result, and compensation at the same time or in sequence. From a practical perspective, that gives Turkish contract law a flexible remedial structure.
General Liability for Non-Performance and Defective Performance
Article 112 is important because it places the burden of exoneration on the debtor. Once non-performance or improper performance is shown, the debtor avoids liability only by proving the absence of attributable fault. Article 114 complements this by stating that, as a rule, the debtor is responsible for every degree of fault, although the scope of responsibility may be assessed in light of the particular nature of the transaction. The same article also states that tort-law rules may apply by analogy to breach-of-contract cases.
Turkish law also limits contractual attempts to exclude liability. Article 115 states that any prior agreement excluding liability for the debtor’s gross fault is definitively invalid. It also invalidates prior exclusions of liability arising from service contracts and, in regulated professional or licensed service contexts, even prior exclusions for slight fault may be invalid. Article 116 further makes the debtor liable, in principle, for damage caused by auxiliaries used in performance.
So, while Turkish law respects freedom of contract, it does not allow parties to draft away every consequence of breach. Liability caps and disclaimer clauses must be assessed against these mandatory limits. As a result, the enforceability of contractual risk-allocation clauses in Turkey depends not only on wording, but also on the type of fault, the type of contract, and whether the clause crosses a mandatory boundary.
Debtor Default in Turkey: When Delay Becomes a Legal Breach
A major category of breach of contract in Turkey is debtor default. Article 117 states that the debtor of a due obligation falls into default upon notice from the creditor. But the same article also says that where the day of performance was jointly fixed, or was properly fixed through a contractually reserved right, the debtor falls into default automatically when that day passes.
That distinction is very important in practice. If the due date is clearly determined in the contract, Turkish law may not require a separate notice for default. If no such date exists, creditor notice usually becomes the triggering step. In other words, notice and maturity structure can decide when remedies become available.
Once the debtor is in default, Article 118 provides that the debtor must compensate the loss caused by late performance unless it proves that the default occurred without fault. Article 119 adds that the debtor in default is also responsible for damage arising from unexpected events, unless it proves either that it was not at fault in falling into default or that the same loss would have occurred even if performance had been timely.
This makes default in Turkish law more serious than mere lateness. Delay can expand the debtor’s exposure beyond ordinary timing loss and can also increase responsibility for supervening events. For contractual risk management, this means delivery dates, payment dates, and notice clauses should never be treated as minor drafting details.
Default Interest and Additional Damages
Article 120 regulates default interest. If the annual default interest rate was not agreed in the contract, the applicable rate is determined according to the legislation in force on the date the interest obligation arose. The same provision also limits the contractual annual default interest rate: it cannot exceed one hundred percent above the statutory annual rate determined under that paragraph. Where contractual interest exists but a default-interest rate was not separately agreed, and the contractual rate is higher than the statutory rate, the contractual rate applies as the default-interest rate.
Article 121 adds special rules for obligations consisting of interest, annuities, or a donated sum of money, while Article 122 recognizes excess damage. If the creditor suffers a loss exceeding default interest, the debtor must compensate that additional loss unless it proves the absence of fault. The article further allows the court to award the excess loss in the same case if its amount can be established during the proceedings.
This means that under Turkish law, default interest is not always the creditor’s entire remedy. Where the creditor can show a larger concrete loss caused by the breach, an additional damages claim may be possible. In commercial disputes, that can be significant where delay affects financing costs, downstream contracts, production schedules, or loss of business opportunity.
Reciprocal Contracts: Grace Period, Election of Remedies, and Termination
The Turkish Code of Obligations contains a more detailed regime for reciprocal contracts. Article 123 states that where one party to a reciprocal contract falls into default, the other party may grant an appropriate additional period for performance or ask the court to grant such a period.
Article 124 then lists situations where no additional period is necessary. These include cases where granting time would be ineffective because of the debtor’s situation or conduct, where performance has become useless for the creditor due to the debtor’s default, and where the contract shows that performance after a certain time or period would no longer be accepted.
Article 125 sets out the creditor’s core election of remedies. If the debtor still does not perform within the additional period, or if no additional period was required, the creditor may always demand performance together with delay damages. Alternatively, by immediately declaring that it waives performance and delay damages, the creditor may demand damages for non-performance or rescind the contract. Where the creditor rescinds, both parties are released from their future duties and may claim back what they already performed; if the debtor cannot prove absence of fault in the default, the creditor may also claim damages resulting from the contract’s collapse.
This is one of the most important areas of Turkish contract law. It means the creditor is not trapped in a single remedy. In many breach scenarios, the creditor can choose between holding the contract alive and demanding performance, or abandoning performance and shifting to damages or rescission. Strategy matters here, because the legal and financial consequences of each path are different.
Continuous-Performance Contracts
Article 126 deals specifically with continuous-performance contracts after performance has started. In such contracts, where the debtor falls into default, the creditor may demand performance and delay damages, or terminate the contract and seek compensation for the loss caused by its premature end.
This provision matters for leases, supply arrangements, subscription-style services, framework distribution relationships, maintenance agreements, and other continuing obligations. Turkish law recognizes that the remedial logic for a one-off sale is not always the right fit for a continuing contractual relationship.
From a practical perspective, this means that in long-term contracts the question is not only whether the debtor breached, but also whether the relationship should continue, be terminated prospectively, or be converted into a damages dispute. Drafting precise termination and cure clauses remains highly valuable, but the statutory framework already gives creditors meaningful tools.
Impossibility and the End of the Obligation
Not every failure to perform counts as a compensable breach in the same way. Article 136 addresses impossibility of performance. If performance becomes impossible for reasons for which the debtor cannot be held responsible, the obligation is extinguished. In reciprocal contracts, the party released from its own performance must return what it already received under unjust-enrichment rules and loses the right to claim the counter-performance that has not yet been rendered.
Article 136 also imposes a notice-and-mitigation duty. If the debtor does not promptly inform the creditor that performance has become impossible and does not take the necessary steps to prevent the increase of loss, the debtor must compensate the resulting damage. Article 137 further regulates partial impossibility and states that the debtor is released only from the impossible part, unless it is clear that the contract would never have been made had the parties foreseen the partial impossibility.
This structure is important because Turkish law separates non-attributable impossibility from ordinary breach. If the impossibility is truly outside the debtor’s responsibility, the obligation ends rather than generating ordinary contractual damages. But the debtor may still remain liable for the harm caused by late notice or failure to limit the damage.
Penalty Clauses in Turkish Contracts
Penalty clauses are a major part of breach-of-contract practice in Turkey. Article 179 provides that where a penalty is agreed for total non-performance or improper performance, the creditor may, unless the contract shows otherwise, demand either performance of the principal obligation or payment of the penalty. If the penalty was agreed for late performance or performance at the wrong place, the creditor may, unless it waived that right or accepted performance without reservation, demand both the principal performance and the penalty.
Article 180 states that the penalty is payable even if the creditor suffered no damage. If the creditor’s loss exceeds the agreed penalty amount, the excess may be claimed only if the creditor proves the debtor’s fault. Article 182 adds that the parties may freely determine the amount of the penalty, but if the principal obligation is invalid, or later becomes impossible for a reason not attributable to the debtor, the penalty generally cannot be demanded. The same article also gives the judge power to reduce an excessive penalty on the court’s own motion.
For contract drafting, this makes Turkish law both flexible and controlled. Parties can use penalty clauses to simplify enforcement and strengthen deterrence, but they cannot rely on obviously excessive penalties without judicial risk. In litigation, courts will look beyond the clause’s presence and assess whether it remains enforceable under Article 182.
Commercial Late Payment Under the Turkish Commercial Code
In commercial transactions, breach of payment obligations can trigger a stricter regime. Article 1530 of the Turkish Commercial Code provides that, in transactions for the supply of goods or services between commercial enterprises, where the creditor has performed its supply obligation but the debtor does not pay on the contractual due date or within the agreed payment period, the debtor falls into default without notice, except where the debtor cannot be held responsible for the delay. The creditor then becomes entitled to interest even if it was not expressly agreed.
The same provision also regulates situations where no payment day or period was fixed. It sets statutory timeframes tied to invoice receipt, delivery, or acceptance procedures, and it restricts payment periods by providing that they may not generally exceed sixty days from the relevant starting point, while allowing longer periods only under specific conditions and not where that would create a seriously unfair situation for the creditor. In some small-business and producer contexts, the sixty-day ceiling cannot be exceeded.
This makes Turkish commercial law notably creditor-protective in late-payment disputes. In B2B supply relationships, parties should assume that payment delay may trigger automatic default and interest rights more quickly than under the general regime. Commercial contract drafting in Turkey should therefore pay particular attention to invoice clauses, acceptance procedures, payment periods, and late-payment language.
Limitation Periods for Contract Claims
Remedies for breach of contract in Turkey are also shaped by limitation periods. Article 146 of the Turkish Code of Obligations states that, unless the law provides otherwise, claims are subject to a ten-year limitation period. Article 147 then sets a five-year period for certain categories, including rent claims, principal-interest claims, and other periodic performances, as well as some sector-specific receivables.
This matters because breach claims are not governed by one universal deadline. The nature of the receivable and the type of contractual relationship can shorten the time available for enforcement. In practice, parties should not wait until negotiations collapse before checking limitation risk.
Dispute Resolution and Mandatory Mediation
When a breach-of-contract dispute becomes a court matter, Turkish commercial procedure may require mediation first. Article 5/A of the Turkish Commercial Code provides that, for commercial cases defined by that Code and other laws, where the subject matter is a monetary receivable, compensation, action for annulment of objection, negative declaratory relief, or restitution, applying to a mediator before filing suit is a condition of action. The article also states that the mediator normally completes the process within six weeks, extendable by up to two weeks in compulsory circumstances.
This is especially relevant for commercial breach claims seeking money. A party may have a strong damages or payment claim but still face a procedural obstacle if it files directly in court without first completing mandatory mediation. From a practical standpoint, Turkish contract enforcement is not only about substantive rights; it is also about choosing the correct procedural route.
Breach of Contract in Consumer Contexts
Where one party is a consumer, breach analysis may also be shaped by the Law on the Protection of Consumers. That statute provides that general provisions apply where it contains no specific rule, and it preserves the application of consumer-jurisdiction rules even if another law also regulates the transaction. This means that ordinary breach-of-contract principles under the Turkish Code of Obligations remain important, but they may operate together with special consumer protections.
For that reason, consumer disputes in Turkey should not be analyzed solely through the lens of general contract law. The same factual failure to perform may produce additional statutory remedies, procedural differences, or mandatory consumer-protection consequences.
Practical Drafting Lessons
The Turkish remedial framework shows why careful contract drafting matters. First, due dates should be drafted clearly, because default consequences often depend on whether maturity is fixed or whether notice is necessary. Second, contracts should address cure periods, especially in reciprocal and continuing obligations, because Turkish law gives weight to additional time and to situations where such time becomes unnecessary.
Third, liability and penalty clauses should be drafted with Turkish mandatory limits in mind. Clauses excluding gross-fault liability are vulnerable, and excessive penalties may be reduced by the judge. Fourth, businesses in B2B supply chains should pay special attention to commercial late-payment rules, because Turkish commercial law can trigger default and interest without notice.
Finally, breach management in Turkey should begin early. Once non-performance, delay, or impossibility becomes visible, parties should document notices, preserve evidence, assess whether a grace period is required, and check whether mediation is a precondition for the intended claim. In Turkish practice, delay in legal analysis can itself become expensive.
Conclusion
Breach of contract in Turkey is not governed by a single remedy. The Turkish Code of Obligations provides a layered system in which the creditor’s options depend on the nature of the breach. Article 112 establishes the general rule of damages for non-performance or improper performance. Articles 117 to 126 regulate default, delay damages, interest, grace periods, election of remedies, rescission, and termination in reciprocal and continuing contracts. Articles 136 and 137 address impossibility, while Articles 179 to 182 regulate penalty clauses.
In commercial cases, the Turkish Commercial Code adds further consequences, particularly for late payment between commercial enterprises and for mandatory pre-litigation mediation in certain monetary disputes. Limitation periods then determine how long the creditor has to act.
The practical takeaway is that Turkish law offers powerful remedies, but they are remedy-specific and procedure-sensitive. The strongest position usually belongs to the party that classifies the breach correctly, preserves evidence early, and chooses the right statutory route from the beginning.
FAQ
What is the general rule for breach of contract in Turkey?
The general rule is in Article 112 of the Turkish Code of Obligations: if the obligation is not performed at all or not performed properly, the debtor must compensate the creditor’s loss unless it proves the absence of attributable fault.
Can the creditor demand performance instead of damages?
Yes. Under Articles 113 and 125, the creditor may in many situations demand performance, seek substitute performance at the debtor’s expense, and in default cases also request delay damages.
Does Turkish law require notice before default?
Usually yes, but not always. Article 117 states that default generally arises upon creditor notice, while a fixed due date or properly determined due date can make default automatic when the date passes. Commercial late-payment rules in Article 1530 TTK can also produce default without notice.
Can the creditor terminate the contract after breach?
Yes. In reciprocal contracts, after the proper additional period has expired, or where no additional period is required under Article 124, Article 125 allows the creditor to abandon performance, claim damages for non-performance, or rescind the contract. Continuous-performance contracts are specially regulated by Article 126.
Are penalty clauses enforceable in Turkey?
Generally yes, but with limits. Articles 179 to 182 allow contractual penalties, permit recovery even without proof of actual damage in principle, and authorize the judge to reduce an excessive penalty.
Is mediation required before filing a commercial breach-of-contract lawsuit?
Often yes, where the claim falls within Article 5/A of the Turkish Commercial Code and concerns monetary receivables, compensation, annulment of objection, negative declaratory relief, or restitution in a commercial dispute.
Yanıt yok