1. Independent Nature of Turkish Bank Guarantees (TBK Art. 128)
In Turkish commercial practice, bank guarantee letters (Banka Teminat Mektupları) are the cornerstone of cross-border construction, supply, and procurement contracts. Under established Turkish legal doctrine, a bank guarantee letter constitutes an independent contract of guarantee (Garanti Sözleşmesi) governed by Article 128 of the Turkish Code of Obligations (TBK No. 6098).
Unlike a standard suretyship (Kefalet), an on-demand bank guarantee is entirely detached from the underlying commercial contract between the buyer (applicant) and seller (beneficiary). The issuing Turkish bank makes an autonomous, primary commitment to pay the specified monetary sum immediately upon presentation of a complying demand, without verifying whether a substantive contractual breach has actually occurred.
| Legal Dimension | Independent Bank Guarantee (Garanti) | Accessory Suretyship (Kefalet) |
|---|---|---|
| Statutory Foundation | TBK Article 128 (Third-party performance guarantee) | TBK Articles 581–603 (Accessory suretyship) |
| Autonomy from Main Contract | Strictly Autonomous: Bank cannot assert defenses of debtor | Accessory: Surety can raise all debtor defenses |
| Payment Trigger | First written demand complying with letter terms | Default of principal debtor and exhaustion of remedies |
| International Rules | ICC URDG 758 / ISP98 compliant | Strictly domestic Turkish surety rules |
2. Procedure for Calling On-Demand Guarantees (First Demand Protocol)
To successfully call an on-demand guarantee and prevent the bank from rejecting the claim on technical non-compliance grounds, international beneficiaries must follow a rigorous protocol:
- Strict Compliance with Letter Text: The demand letter must replicate verbatim any specific wording, statements of default, or documentation requirements stipulated in the guarantee letter.
- Authorized Delivery Channel: Delivery must occur via SWIFT MT799/MT760 or through an official Turkish Notary Public before the expiry date (*vade*) of the guarantee.
- Presentation of Original Letter: Where required by the text, the original physical bank guarantee letter must be surrendered to the issuing bank's headquarters.
3. Overturning Debtor Blocking Injunctions (İhtiyati Tedbir)
When an international beneficiary initiates a guarantee call, distressed Turkish commercial debtors frequently rush to local Civil or Commercial Courts seeking an ex-parte Precautionary Injunction (İhtiyati Tedbir) under Article 389 of the Turkish Code of Civil Procedure (HMK No. 6100) to freeze payment.
Under Turkish law, courts may only grant an injunction stopping bank guarantee disbursement under the strictly circumscribed Fraud and Manifest Abuse of Rights Exception (Hakkın Kötüye Kullanılması - TMK Art. 2). To lift such an injunction, the beneficiary's legal counsel must file an immediate objection under HMK Article 394, demonstrating that:
- The guarantee is autonomous and independent of substantive contract disputes.
- The debtor has failed to provide irrefutable documentary proof of fraud (e.g., forged documents or already-paid invoices).
- The commercial court lacked jurisdiction to evaluate underlying contractual claims without lifting the guarantee payment.
4. Execution Against a Defaulting Bank (EBL Art. 42)
If an issuing Turkish bank fails to disburse funds within 5 business days of a compliant demand and no court injunction exists, the beneficiary may immediately initiate direct Enforcement Proceedings without Judgment (İlamsız İcra Takibi) under EBL Article 42 against the bank. Under Turkish execution law, if the bank objects without justification, the court imposes a mandatory 20% execution denial penalty (İcra İnkâr Tazminatı) on top of the principal amount and commercial default interest.
Scope. This page is general information about Turkish law and procedure. It is not legal advice, it is not an assessment of your situation, and reading it does not create a lawyer-client relationship. Statutory figures, thresholds and rates are revised periodically — check the current position before relying on any of them. Any particular case turns on its own documents and facts.
5. Frequently Asked Questions
Is a Turkish bank guarantee letter an independent or accessory obligation?
Under Turkish law, a bank guarantee letter (Teminat Mektubu) is classified as an independent guarantee agreement (Garanti Sözleşmesi) under Article 128 of the Turkish Code of Obligations (TBK No. 6098). The issuing bank's payment obligation is strictly independent of the underlying commercial contract.
Can an issuing bank refuse payment by claiming the buyer was not in breach of contract?
No. The issuing bank cannot assert defenses or counterclaims arising from the underlying commercial relationship between the buyer and the seller. The bank is legally bound to pay immediately upon first written demand unless a court injunction is served.
What is the fraud exception (Hakkın Kötüye Kullanılması) in Turkish guarantee enforcement?
Under Turkish Civil Code Article 2, the only narrow ground for a court to issue an injunction preventing guarantee payment is manifest fraud or blatant abuse of rights established by irrefutable documentary proof.
How quickly must a Turkish bank pay upon presentation of a complying demand?
Under standard Turkish banking practice and ICC Uniform Rules for Demand Guarantees (URDG 758), under art. 20(a) the guarantor has five business days following the day of presentation to examine the demand and decide whether it complies. That is an examination period, not a payment deadline, and a complying demand is then paid. Turkish courts apply the rules the guarantee itself incorporates, so the business days.
What legal action can be taken if a Turkish bank refuses to honor a complying demand?
The beneficiary can initiate direct execution proceedings against the bank under EBL Article 42, attach the bank's account at the Central Bank of the Republic of Türkiye (CBRT), and claim commercial default interest.