Turkey Rent Increase Rate September 2026: 31.79% and New Rent Calculation

According to data published by the Turkish Statistical Institute (TÜİK), the rent increase rate based on the 12-month average CPI for lease renewals in September 2026 is 31.79%.
What Is the Rent Increase Rate in Turkey for September 2026?
The Turkey rent increase rate for September 2026 is 31.79%. The rate is based on the 12-month average Consumer Price Index (CPI/TÜFE).
September 2026 Rent Increase Rate: 31.79%How Is the Rent Increase Rate Determined?
The Consumer Price Index CPI/TÜFE data published by the Turkish Statistical Institute (TÜİK) is used when determining the applicable rent increase for lease renewals.
For September 2026, the 12-month average CPI used in the calculation was 31.79%.
Does the 31.79% Rate Apply to Residential and Commercial Rentals?
The applicable rent increase for residential properties, offices, shops and commercial real estate should be evaluated according to the lease agreement and applicable legal regulations.
Landlords and tenants should therefore consider the lease renewal date, current rental amount and specific terms of the agreement before determining the new rent.
How to Calculate a Rent Increase in Turkey
For example, if the current monthly rent is 20,000 Turkish Lira and the applicable increase rate is 31.79%:
Rent increase: 20,000 × 31.79% = 6,358 TRY
New monthly rent = 26,358 TRY
This is an illustrative calculation. The actual rental amount may vary depending on the lease agreement and applicable legislation.
What Does the Rent Increase Rate Mean for Real Estate Investors?
Monitoring rent increase rates in Turkey is important for property owners and real estate investors because rental income is an important factor when evaluating the potential return of an investment property.
This is particularly relevant for investors considering the Istanbul real estate market, where purchase price, rental income, local demand and potential rental yield should be evaluated together.
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Frequently Asked Questions About Turkey Rent Increase – September 2026
What is the Turkey rent increase rate for September 2026?
The Turkey rent increase rate for September 2026 is 31.79%, based on the 12-month average CPI.
Who publishes the rent increase data in Turkey?
The CPI/TÜFE data used for rent increase calculations is published by the Turkish Statistical Institute (TÜİK).
How is the new rent calculated?
The increase amount is calculated by applying the applicable percentage to the current rental amount and adding the resulting amount to the existing rent.
Can the final rental amount be different?
Yes. The actual rental amount should be evaluated according to the lease agreement and the applicable legal regulations.