I. INTRODUCTION AND THE CONCEPT OF EXORBITANT EXPLOITATION (LESION)
The principles of autonomy of will and freedom of contract (Turkish Code of Obligations – TCO Art. 26), which form the foundation of the law of obligations, grant individuals the opportunity to establish legal relations of their choice, freely determine contract content, and appraise performance values. However, where parties do not stand on equal footing economically, socially, or psychologically, applying absolute contractual freedom can lead to the exploitation of the weaker party and severe injustice. For this reason, the legislature enacted Article 28 of the Turkish Code of Obligations No. 6098 (TCO) regulating “Exorbitant Exploitation” (Gabin) to ensure contractual justice and safeguard the principle of good faith (Turkish Civil Code – TCC Art. 2).
Gabin occurs in a bilateral contract when one party creates a clear and unacceptable disproportion between performances by exploiting the other party’s state of distress, impulsiveness, or inexperience. Gabin differs from defects of consent (error, fraud, duress); here, the defect lies not purely in the formation of intent, but in the intentional exploitation of power imbalance by the counterparty and the immoral disruption of performance balance within the contract.
For exorbitant exploitation to exist, one objective and two subjective elements stipulated by law must occur cumulatively:
- Objective Element (Clear Disproportion Between Performances): There must be a striking, reasonable-limit-exceeding disparity between the economic values of the subject performances at first glance. Disproportion is evaluated at contract formation, not performance date. Subsequent market fluctuations fall under extreme hardship in performance (TCO Art. 138), not gabin. While no fixed statutory percentage exists in Court of Cassation practice, a two-fold or greater difference creates a presumption of clear disproportion.
- Subjective Element – Weak State of the Exploited Party: Performance disparity must stem from one of three conditions of the injured party:
- State of Distress: Helplessness due to urgent cash needs, threat of foreclosure/bankruptcy, severe illness, or personal danger.
- Impulsiveness (Thoughtlessness): Temporary carelessness or levity causing an inability to comprehend or weigh the heavy burdens of the legal transaction.
- Inexperience: Lack of commercial or legal knowledge making the person vulnerable to deception and exploitation. For merchants, claims of inexperience or thoughtlessness are generally rejected due to the duty to act as a prudent businesswoman/man (Turkish Commercial Code Art. 18/2); however, merchants may rely on distress.
- Subjective Element – Exploitative Intent: The exploiting party must act with the intent to exploit (istismar kastı)—knowing the weaker party’s condition solely to secure unfair benefit. Gabin provisions do not apply where the counterparty acts in good faith without knowledge of this state.
II. LEGAL REMEDIES AND ELECTIVE RIGHTS UNDER GABIN
Where elements of gabin occur during contract formation, the exploited party is not left remedy-less. Under TCO Art. 28/1, the legislature provides two alternative elective rights to the exploited party, who is free to choose either:
- Right to Annul by Declaring Non-Bindingness (Rescission): The exploited party may retroactively annul the contract through a formative declaration of intent or by filing a lawsuit declaring non-bindingness. The contract becomes void ab initio, and restitution of performances may be demanded.
- Right to Request Adaptation / Balancing While Maintaining Contract: Introduced in TCO No. 6098 (absent in former code), the victim may demand equitable adjustment of unfair performance disproportions rather than complete termination. The judge restores balance by reducing the exploited party’s obligation or increasing the counterparty’s performance.
III. RESTITUTION OF SOLD PROPERTY AND REFUND OF PAID MONEY
A frequent practical question is whether transferred property (real estate, vehicles, company shares) can be recovered or paid funds refunded. The legal system offers full protection:
- Restitution in Real Estate Transfers (Title Deed Cancellation and Registration Lawsuit): An owner forced by distress to transfer real estate far below market value may file a Title Deed Cancellation and Registration Lawsuit based on gabin. Upon annulment, the registry entry under the defendant (exploiter) is canceled and re-registered to the plaintiff (victim).
- Movable Property and Price Refund (Unjust Enrichment and Replevin): For movables still in the exploiter’s possession, in rem replevin is claimed based on ownership. If transferred to third parties, rendered impossible to return, or if the victim paid money, refund of the excess price at updated/adapted market values is demanded under Unjust Enrichment provisions (TCO Art. 77 et seq.).
- Status of Good-Faith Third Parties: Under TCC Art. 1023, good-faith third parties acquiring real estate relying on land registry entries are protected. If the exploiter transfers property to a good-faith third party, physical restitution becomes impossible. The victim may then claim full damages from the exploiter—specifically the huge difference between true market value and the nominal price paid.
IV. COMPENSATION RIGHTS AND SCOPE
Victim rights under gabin are not limited to performance restitution or price balancing. An exploiter violating good faith during contract formation incurs liability:
- Negative Loss (Reliance Damage): Upon annulling the contract, the victim may claim negative damages incurred due to reliance on contract completion (notary fees, appraisal costs, taxes, missed alternative opportunities, travel/investigation expenses).
- Full Compensation & Moral Damages: Where physical restitution is impossible due to third-party sales, the difference between actual market value and paid price is collected as full compensation under tort and unjust enrichment rules. If gabin acts also constitute duress, fraud, or swindling, Moral Damages may be claimed under TCC Art. 24 and TCO Art. 58 for personal rights violations.
V. PEREMPTORY PERIODS AND STATUTE OF LIMITATIONS
Strict statutory time limits apply to lawsuits based on gabin. These are peremptory periods (hak düşürücü süre), not ordinary statutes of limitations. They touch upon public order and are observed ex officio by judges without party pleading.
Under TCO Art. 28/3, rights to annul or eliminate disproportion are subject to a two-tier timeframe:
- Relative (One-Year) Period: Begins when the victim learns of their impulsiveness/inexperience, or when the state of distress (pressure/hardship) completely ceases. The period does not run while distress persists.
- Absolute (Five-Year) Period: Regardless of knowledge or termination of distress, gabin rights lapse completely five years from contract formation (signing).
VI. PRECEDENT DECISIONS
Court of Cassation 9th Civil Chamber, E. 2025/6267, K. 2025/7427, T. 06.10.2025
“For gabin to be accepted, performance disproportion must result from one party knowingly exploiting a special condition existing in the person of the other. Even if clear disproportion (objective element) is found comparing agreed amounts in a settlement document with statutory claims, the subjective element must be established for both employee and employer.”
Court of Cassation 1st Civil Chamber, E. 2019/2222, K. 2021/343, T. 21.01.2021
“The plaintiff argued the real estate was assigned far below market value to a real estate agent defendant due to phone threats and fraud, rendering the transaction void for gabin. However, dismissing the case was compliant with law considering objective and subjective conditions (distress, thoughtlessness, inexperience) did not occur in the concrete event.”
Istanbul Regional Court of Justice 16th Civil Chamber, E. 2021/985, K. 2023/145, T. 02.02.2023
“Regarding the claim that the subject work was not actively conducted by the client and gabin provisions should apply: Gabin under TCO Art. 28 requires clear performance disproportion resulting from exploiting a party’s weak position. In merchant transactions, the duty to act as a prudent merchant is central to evaluating gabin claims.”
VII. CONCLUSION AND LEGAL EVALUATION
Gabin is a core statutory protection mechanism preventing unfair exploitation of distressed, inexperienced, or impulsive individuals. Annulment, balancing, and compensation remedies restore lost value and contractual justice. Given short peremptory deadlines and evidentiary nuance, professional legal management is vital to protect against property loss.