Learn how assignment of receivables and transfer of contractual rights work under Turkish law, including written form, debtor defenses, notification, ancillary rights, warranties, debt assumption, and contract assignment under the Turkish Code of Obligations.
Introduction
Assignment of receivables and transfer of contractual rights in Turkey are governed mainly by the Turkish Code of Obligations No. 6098. Turkish law treats changes in the parties to an obligation in a structured way. It distinguishes between the assignment of a receivable, the assumption of debt, and the assignment of a contract. These are related concepts, but they are not identical. An assignment of receivables concerns the creditor’s claim. An assumption of debt concerns the debtor’s side of the obligation. An assignment of contract goes further and transfers the transferring party’s full contractual position, including both rights and obligations, together with party status.
This distinction matters in practice. In Turkish commercial life, receivables are frequently transferred for financing, restructuring, group-company balancing, asset sales, portfolio transfers, factoring-style arrangements, security structuring, and post-closing clean-up in M&A transactions. But a party cannot safely assume that every right under a contract can be moved in the same way. Turkish law asks whether the transfer concerns only a claim, whether the debt side also changes, whether the transaction requires the debtor’s consent, and whether the form rules were respected.
For that reason, any serious analysis of assignment of receivables and transfer of contractual rights in Turkey should begin with classification. The first question is whether the transaction is a transfer of the receivable alone under Articles 183 to 194 of the Turkish Code of Obligations. The second is whether there is also an assumption of debt under Articles 195 to 204. The third is whether the parties are actually trying to transfer the whole contractual position under Article 205. These categories produce different consent rules, different form requirements, and different consequences for the debtor and third parties.
This guide explains the Turkish-law framework in practical English. It focuses on assignment of receivables, debtor defenses, notification, ancillary rights, warranties, debt assumption, contract assignment, contract participation, and key drafting issues for cross-border and domestic transactions.
The Legal Framework Under the Turkish Code of Obligations
The Turkish Code of Obligations places party changes in obligation relationships in a dedicated section. After the rules on penalties and related matters, the Code opens Section Five: Changes of Parties in Debt Relationships. It then regulates, in sequence, transfer of receivables, assumption of debt, and contract assignment and contract participation. This legislative structure is itself important because it shows that Turkish law does not collapse all party substitutions into one concept. Each institution has its own rules and legal consequences.
The general background rule is also important. Article 26 of the Turkish Code of Obligations allows parties to determine contract content freely within legal limits, while Article 27 invalidates agreements contrary to mandatory rules, morality, public order, personal rights, or impossible subject matter. That means parties may structure receivable transfers and contractual substitutions broadly, but only within the limits of the legal regime. Turkish law is commercially flexible, but it is not indifferent to form, consent, and protected interests.
Assignment of Receivables in Turkey: The Core Rule
The main rule appears in Article 183. Unless prevented by law, by contract, or by the nature of the business, the creditor may assign its receivable to a third party without the debtor’s consent. This is one of the most important points in Turkish contract law. As a default rule, the receivable belongs to the creditor’s transferable patrimonial sphere, and the creditor may move it to another person without first obtaining approval from the debtor.
Article 183 also adds a protection for good-faith third parties. If there is a written acknowledgment of debt that does not contain a prohibition on assignment, the debtor cannot invoke a non-assignment agreement against a third person who acquired the receivable relying on that written acknowledgment. This is commercially significant because it protects transactional security and written appearances in circulation. A debtor who wants to rely on an anti-assignment arrangement should not assume that the restriction will always defeat a good-faith third-party acquirer.
This makes Turkish law relatively creditor-friendly on the transferability of claims. But the default freedom is not absolute. The Code expressly reserves three limits: law, contract, and the nature of the business. So the analysis always begins with the underlying receivable. Some claims may be non-transferable because a statute says so, because the parties validly prohibited transfer, or because the type of right is too closely connected to the original creditor to be detached from that person.
Form Requirement: Writing Is Essential
The validity rule appears in Article 184. The assignment of a receivable is valid only if it is made in writing. The same article adds that a mere promise to transfer a receivable is not subject to form. This is a major practical distinction. The binding promise to assign can be informal, but the actual assignment itself must comply with the written-form requirement.
This means that parties working under Turkish law should not assume that an email exchange, oral commitment, or informal operational instruction automatically transfers the claim itself. The underlying commercial intention may be clear, but Turkish law still asks whether the formal assignment document exists in writing as required by Article 184. In financing and restructuring practice, this is one of the most common technical points that must be checked early rather than after a dispute begins.
Legal or Judicial Transfer of Receivables
Turkish law also recognizes transfers that do not rest on voluntary assignment alone. Article 185 states that if the receivable passes by law or by court decision, the transfer can be asserted against third parties without a special form and without the previous creditor’s consent. This provision matters because not every transfer of a receivable is contractual. Some arise by legal succession, statutory subrogation, enforcement rules, inheritance, or court-based allocation.
As a result, Turkish law distinguishes between voluntary assignment and legal or judicial transfer. The writing requirement in Article 184 is central for voluntary assignment, but Article 185 confirms that the law itself may move the claim in other situations without the same formality. This distinction is especially relevant in enforcement, security, inheritance, and statutory recourse contexts.
Notification to the Debtor and Good-Faith Performance
One of the most practically important rules appears in Article 186. If the assignment has not been notified to the debtor by the assignor or the assignee, the debtor is released by performing in good faith to the previous creditor. If the receivable was transferred several times, good-faith performance to one of the prior transferees instead of the last transferee can also release the debtor.
This rule shows why notice is crucial even though debtor consent is not generally required. Assignment is valid between assignor and assignee once the legal requirements are satisfied, but from the debtor’s perspective, lack of notice can keep performance to the former creditor effective if the debtor acted in good faith. Turkish law therefore balances the creditor’s freedom to assign with the debtor’s need for transactional safety.
In practice, this means that a Turkish-law receivable purchaser should not rely solely on the assignment deed. It should also consider notification strategy, timing, and proof of notice. Otherwise, the economic value of the transfer can be undermined by a debtor who lawfully pays the old creditor without awareness of the transfer.
Disputed Receivables and Deposit Mechanism
Article 187 addresses a special but important situation: disputed receivables. If the receivable is disputed, the debtor may refrain from performance and can be released by depositing the subject matter in the place designated by the judge. If the debtor performs despite knowing of the dispute, the debtor is responsible for the consequences. If the lawsuit concerning the dispute is not yet concluded and the debt is due, either party may compel the debtor to deliver performance.
This provision is significant for contested assignments, multiple-assignment scenarios, and conflicts over who the rightful creditor is. Turkish law does not force the debtor to gamble blindly where ownership of the receivable is disputed. Instead, it gives the debtor a judicially controlled deposit route to avoid double-payment risk.
Debtor Defenses Against the Assignee
A transferred receivable does not become magically stronger simply because it changed hands. Article 188 states that the debtor may assert against the transferee the defenses it had against the transferor at the time it learned of the assignment. The article also allows set-off in a qualified way: the debtor may set off a claim that was not yet due when it learned of the transfer, provided that claim becomes due before or at the same time as the assigned receivable.
This is one of the most important debtor-protection rules in Turkish assignment law. It preserves the substantive balance of the original obligation. An assignee usually steps into the receivable with its strengths and weaknesses, rather than receiving an improved claim cleansed of pre-existing defenses. For due diligence, this means the assignee should examine not only whether the receivable exists, but also what objections, counterclaims, or set-off positions the debtor may already hold.
Ancillary Rights and Accrued Interest
Article 189 provides that, upon assignment, the priority rights other than those strictly tied to the assignor’s personality, together with ancillary rights, pass to the transferee. It also states that the principal receivable is deemed transferred together with accrued interest. This is commercially important because the value of a receivable often depends on more than the principal amount. Security interests, privileges, and accessory rights can be central to recoverability.
The rule is not unlimited. Rights that are personal to the assignor do not travel automatically. But as a general proposition, Turkish law treats assignment as carrying the receivable with its ordinary accessory protections. This reduces the need to rebuild the claim structure from zero when a receivable is transferred.
Documents, Information, and the Assignor’s Cooperation Duty
An assignee cannot enforce what it cannot document. Article 190 therefore obliges the assignor to deliver to the assignee the debt instruments and other documents necessary for proof and to provide the information needed to assert the receivable. This is a very practical rule. Assignment is not only about abstract legal transfer; it is also about making the claim operationally enforceable.
In transactions involving a receivable portfolio, this provision becomes especially important. Schedules, invoices, acceptance records, correspondence, debt acknowledgments, security documents, and debtor contact details may all be necessary for enforcement. Turkish law expressly recognizes that effective transfer includes informational cooperation.
Assignor’s Warranty: Existence of the Claim and Solvency of the Debtor
Turkish law also regulates the assignor’s warranty obligations. Article 191 states that if the receivable is assigned in return for consideration, the assignor warrants both the existence of the receivable and the debtor’s solvency at the time of assignment. If the receivable was assigned without consideration or transferred by operation of law, the assignor or previous creditor is not responsible for the existence of the claim or the debtor’s solvency.
This rule is commercially powerful. It means a Turkish-law assignee in a paid assignment does not acquire the receivable entirely at its own risk. The assignor is, by default, standing behind both the existence of the claim and the debtor’s solvency at the transfer moment. This differs from some systems where solvency warranty must be expressed more clearly. In Turkish law, Article 191 builds that protection into the transfer unless the statutory category excludes it.
Article 192 then addresses a special case where the creditor assigns the receivable in performance of its own debt without fixing the amount to be set off. In that situation, the transferee is obliged to set off only the amount actually collected from the debtor, or the amount that could have been collected had due care been exercised. Article 193 describes what the assignee may claim from a transferor who is obliged to guarantee: return of the counter-performance with interest, transfer-related expenses, expenses of fruitless pursuit against the debtor, and other losses unless the transferor proves absence of fault. Article 194 reserves special statutory provisions for assignment of certain rights.
Transfer of Contractual Obligations: Assumption of Debt
If the transaction concerns not only the creditor’s claim but also the debtor’s side, assignment law alone is not enough. The Turkish Code of Obligations regulates assumption of debt in Articles 195 to 204. Article 195 deals with internal assumption, under which the person entering the agreement with the debtor undertakes to release the debtor by personally performing the debt or by assuming it with the creditor’s consent. This internal arrangement by itself does not yet replace the debtor vis-à-vis the creditor.
The decisive outward step appears in Article 196, which provides that replacement of the debtor and release of the old debtor requires an external assumption agreement with the creditor’s consent. This is the core contrast with receivable assignment. A creditor may generally assign its receivable without the debtor’s consent, but a debtor cannot ordinarily substitute another debtor without the creditor’s consent. Turkish law protects the creditor’s interest in the identity and financial reliability of the debtor.
This distinction should always be kept clear in transaction planning. A deal that appears commercially to “transfer the contract” may in legal reality require both a receivable transfer and a debt assumption, and the latter may require counterparty consent where the former would not.
Business Transfer and Existing Debts
Turkish law contains a particularly important rule for business transfers. The English translation of Article 202 shows that where a person acquires an asset or business and notifies creditors or announces the transfer in the required way, the transferee becomes liable, and the previous debtor remains jointly and severally liable for two years. This period runs from notification or announcement for due debts and from maturity for debts falling due later. The consequences are aligned with external assumption of debt.
This matters greatly in asset deals and business acquisitions. Turkish law does not treat transfer of a business as a purely internal rearrangement. Existing creditors are protected through a liability regime tied to notification and announcement, and the old debtor does not disappear immediately. That rule can materially affect due diligence, post-closing indemnity drafting, and creditor notice planning.
Assignment of Contract in Turkey
The most direct answer to “transfer of contractual rights” appears in Article 205, which regulates assignment of contract. The article defines contract assignment as an agreement between the assignor, the assignee, and the party remaining in the contract, transferring to the assignee all rights and obligations of the assignor together with party status. The same article adds that an agreement between assignor and assignee based on prior authorization or later approval by the remaining party is also subject to the rules on contract assignment. The validity of the assignment depends on the form of the assigned contract.
This provision is crucial because it shows that a full contract transfer under Turkish law is not the same as a simple receivable assignment. Contract assignment moves the entire contractual position, including both the benefits and the burdens. And unlike ordinary receivable assignment, it is built around consent by the remaining contractual party, either contemporaneously, in advance, or through later approval.
This is why parties should avoid loose wording. Saying that “all rights under the contract are transferred” may be insufficient if the real commercial intention is to substitute one party completely with another. Under Turkish law, that broader result belongs to Article 205’s contract-assignment regime, not merely to Articles 183 and following on receivables.
Contract Participation
The Turkish Code also regulates contract participation in Article 206. This is an agreement between the participant and the parties to an existing contract, allowing the participant to join alongside one of the parties and thereby acquire that party’s rights and obligations. Unless otherwise agreed, the joining party and the original party with whom it joins become jointly and severally creditor and debtor against the other party. The validity of contract participation depends on the form of the contract concerned.
This mechanism is useful where the commercial goal is not full substitution but rather addition of another party to the contractual position. Turkish law therefore offers more than one technique for party restructuring: assignment of receivables, assumption of debt, contract assignment, and contract participation. Each serves a different transactional purpose.
Consumer Law Angle
While the Turkish Consumer Protection Law is not the main source for general receivable assignment, it does contain relevant receivables language. The official English text of Law No. 6502 states that in consumer transactions, personal guarantees obtained in return for the consumer’s acts are deemed ordinary guarantees, while personal guarantees given by the other party regarding the consumer’s receivables are deemed joint guarantees unless another law provides otherwise. This shows that consumer receivables can interact with a distinct protective framework.
That does not create a separate general assignment code for consumers, but it is a reminder that receivable structures should be checked against sector-specific or consumer-protection rules where the transaction touches consumer rights.
Practical Drafting Lessons
A strong Turkish-law transaction document should first identify the legal mechanism actually needed. If the goal is only to transfer a claim, Articles 183 to 194 are central. If the debtor’s side is changing, Articles 195 to 204 enter the picture. If the whole contractual position is moving, Article 205 should usually be addressed directly. Many avoidable disputes arise simply because the drafting uses the vocabulary of “transfer” without separating these concepts.
Second, form should never be treated casually. Receivable assignment must be in writing under Article 184, and contract assignment follows the form of the assigned contract under Article 205. If a transaction is executed through scattered emails or operational instructions, parties should verify whether the legal form requirement was truly satisfied.
Third, notification strategy matters. A receivable may be validly assigned without the debtor’s consent, but lack of notice can allow good-faith payment to the old creditor to discharge the debt under Article 186. In portfolio and finance transactions, notice planning is therefore not an afterthought but part of value preservation.
Fourth, due diligence should focus on defenses and documents. Under Article 188, the debtor may assert existing defenses against the transferee. Under Article 190, the assignor must provide documents and information. Under Article 191, the assignor may warrant the claim’s existence and the debtor’s solvency in paid assignments. These provisions make it clear that Turkish-law receivable acquisition is both a legal and an evidentiary exercise.
Conclusion
Assignment of receivables and transfer of contractual rights in Turkey are governed by a detailed and commercially sophisticated framework. The Turkish Code of Obligations distinguishes clearly between receivable assignment, debt assumption, contract assignment, and contract participation. Article 183 makes receivables generally transferable without debtor consent unless law, contract, or the nature of the business prevents it. Article 184 requires writing. Articles 186 to 193 regulate notice, debtor protection, ancillary rights, information duties, and assignor warranties. Articles 195 to 204 govern assumption of debt, while Article 205 provides the legal model for full contract assignment and Article 206 for contract participation.
The practical lesson is simple. Under Turkish law, “transfer” is not one single act. The legal route depends on what is being moved: a receivable, a debt, or the entire contractual position. Parties that classify the transaction correctly, respect the form rules, secure the necessary consents, and manage notice and documentation carefully are in a far stronger position than parties that rely on generic wording.
FAQ
Can a creditor assign a receivable without the debtor’s consent in Turkey?
Yes. Under Article 183 of the Turkish Code of Obligations, the creditor may generally assign its receivable to a third party without the debtor’s consent, unless prevented by law, contract, or the nature of the business.
Does assignment of receivables require a special form?
Yes. Article 184 requires the assignment itself to be made in writing. A mere promise to assign is not subject to form, but the actual transfer is.
What happens if the debtor pays the old creditor after the receivable was assigned?
If the assignment was not notified and the debtor pays the old creditor in good faith, Article 186 states that the debtor is discharged.
Can the debtor raise defenses against the assignee?
Yes. Under Article 188, the debtor may assert against the transferee the defenses it had against the transferor at the time it learned of the transfer.
Do ancillary rights pass with the receivable?
Generally yes. Article 189 states that ancillary rights and priority rights not personal to the assignor pass to the transferee, and accrued interest follows the principal receivable.
Is contract assignment the same as receivable assignment?
No. Article 205 regulates contract assignment and requires transfer of the full contractual position, including rights, obligations, and party status, with the participation or approval of the remaining contractual party. Receivable assignment under Article 183 transfers only the claim.
Does a debtor change require creditor consent?
Usually yes. Debt assumption under Articles 195 to 204 is structurally different from receivable assignment, and the creditor’s consent is central to effective debtor substitution.
What is contract participation under Turkish law?
Article 206 regulates contract participation. It allows another person to join one side of an existing contract and acquire that party’s rights and obligations, usually resulting in joint and several creditor-debtor status unless otherwise agreed.
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