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1 min read Lease Law
How Is the Rent Increase Rate Calculated in 2026?
A short guide to the legal cap on rent increases for residential and commercial leases, the calculation method, and the parties' rights.
GL
G&G Law
G&G Hukuk
Under the Turkish Code of Obligations, the rent increase rate is capped at the twelve-month average of the consumer price index (CPI) for the previous lease year. Even if the parties agree on a higher rate in the contract, this statutory ceiling cannot be exceeded.
Key points
- The increase applies only to the renewed lease period.
- For lease relationships exceeding five years, the judge may re-determine the rent on an equitable basis, not bound by the index.
- In case of dispute, a rent-determination or rent-adaptation action may be filed.
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