Calculating Rent Increase Rate : Rent increase rates in Turkey are regulated by law in order to protect the rights of both tenants and landlords. Rent increases are carried out annually within a specific legal framework shaped by the Turkish Code of Obligations (TCO) and temporary legislative measures. The calculation of rent increases must comply with legal limits and the provisions specified in the lease agreement. As of 2025, rent increase rates for both residential and commercial leases are determined as follows:
How Is the Rent Increase Rate Calculated?
The rent increase rate is calculated in accordance with legal limitations and the clauses set forth in the lease agreement. The process is carried out by considering either the 12-month average of the Consumer Price Index (TÜFE) or the legally defined maximum rate.
Rent Increase Calculation Based on TÜFE
According to the Turkish Code of Obligations, rent increases are generally determined based on the 12-month average TÜFE announced by the Turkish Statistical Institute (TÜİK). You can calculate the updated rent using the tool below by entering the current TÜFE rate. The latest TÜFE rate can be found on TÜİK’s official website.
Calculation Formula:
New Rent = Previous Rent + (Previous Rent × TÜFE Rate)
TÜFE Data and Rent Increase Rate
TÜİK (Turkish Statistical Institute) announces Consumer Price Index (TÜFE) data monthly.
- The 12-month average TÜFE is used in rent increase calculations.
- TÜFE data in effect at the time of the rent increase is applied.
Content of Article 344
If There Is a Contract:
- If the lease agreement between the tenant and the landlord includes a rent increase clause, the rate cannot exceed the 12-month average TÜFE.
- Even if the parties agree on a different rate, it cannot surpass the legal limit.
If There Is No Contract Clause:
- If the parties did not agree on an increase rate, the rent can be increased based on the 12-month average TÜFE.
Long-Term Contracts:
- If the tenant has been residing in the same property for more than five years, the court may determine a new rent amount considering comparable rental values, TÜFE data, and the condition of the property.
Legal Basis for Rent Increases
Article 344 of the Turkish Code of Obligations provides the principal legal framework for determining rent increases.
Rent Increase Rate for Residential Leases
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Legal Basis: Article 344 of the Turkish Code of Obligations
According to Article 344:
- Even if the lease agreement between the tenant and landlord states an increase rate, it cannot exceed the 12-month average TÜFE.
- Additional Provision (Temporary Regulation): Between July 2, 2023, and July 2, 2024, rent increases cannot exceed 25%, even if the TÜFE average is higher.
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Disputes Regarding Rent Increases for Residential Properties
- If there is a disagreement between the parties regarding the rent increase, either party may apply to the court to determine the new rent.
Rent Increase Rate for Commercial Leases
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Principles of Commercial Lease Increases
- Rent increases for commercial leases are determined based on the 12-month average TÜFE, unlike residential leases.
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Disputes Regarding Commercial Rent Increases
- If there is a disagreement between the parties, either the tenant or the landlord may apply to the court to determine a new rent.
Tenant Rights and Landlord Responsibilities
Tenant Rights
- If the rent increase exceeds the legal limits, the tenant has the right to reject the increase and file a lawsuit.
- A tenant cannot be evicted before the end of the contract (exception: if an eviction undertaking is provided).
Landlord Rights
- The landlord may increase the rent within legal limits during the contract renewal period.
- If the tenant has been residing in the property for more than five years, the landlord can apply to the court to revise the rent.
You may also refer to our detailed article covering the rights of both tenants and landlords.
Rent Determination Lawsuit
If there is a dispute regarding the rent increase, either the landlord or the tenant may file a rent determination lawsuit.
The court determines the rent based on:
- Comparable rental prices in the area,
- The TÜFE rate,
- The features of the rented property.
Consequences of Non-Compliance with Rent Increases
- If the tenant refuses the increase, the landlord may file an eviction lawsuit.
- The tenant may file a lawsuit to reclaim overpayments exceeding the legal limit.
Legal Advice on Rental Disputes
For rental disputes, we recommend seeking legal counsel to avoid procedural errors and irreversible consequences. You may contact us through any of our communication channels.
