October 2025 Rent Increase Rate Announced
October 3, 2025 |
- News
| 3 minutes
In Turkey, rent increase rates are determined according to the Turkish Statistical Institute (TURKSTAT) monthly published 12-month average CPI (Consumer Price Index) data. These rates serve as legal limits for both residential rents and commercial rents.
The October 2025 rent increase rate has been finalized with TURKSTAT’s announcement of September inflation figures. This eagerly awaited rate is binding for parties renewing their lease agreements this month.
What is the October 2025 Rent Increase Rate?
According to TURKSTAT data:
- September 2025 annual inflation rate: 33.29%
- 12-month average CPI (rate used in rent increase calculation): 38.36%
Accordingly, landlords renewing lease contracts in October can increase rent by a maximum of 38.36%.
📌 Important Note: Landlords may apply a lower increase rate, but any increase above this rate is not legally valid.
Rent Increase Calculation (October 2025)
The following examples are calculated based on the 38.36% rent increase rate:
- Current rent: 15,000 TL → New rent: 20,754 TL
- Current rent: 20,000 TL → New rent: 27,672 TL
- Current rent: 25,000 TL → New rent: 34,590 TL
👉 This calculation method applies to all lease agreements. Formula:
Current rent x (38.36%) + current rent = new rent
Is the 25% Increase Cap Still in Effect for Residential Rents?
The 25% cap on residential rent increases that had been in effect since 2022 ended in July 2024. Therefore, as of October 2025, the 12-month CPI average also applies to residential rents.
Consequently, the increase rate of 38.36% will apply to both residential and commercial rents.
Legal Basis
The regulation governing rent increase rates is based on Turkish Code of Obligations Article 344:
- TCO Art.344: “The parties’ agreements regarding the rent amount to be applied in renewed lease periods are valid provided they do not exceed the CPI increase rate of the previous rental year.”
Official source: mevzuat.gov.tr – Turkish Code of Obligations
Case Study: a Commercial Property in Istanbul (October 2025)
- Current rent: 50,000 TL (An office in Nişantaşı)
- Increase rate (12-month CPI): 38.36%
- New rent: 69,180 TL
This example demonstrates the scale of rent cost increases for commercial tenants in 2025.
Important Considerations for Tenants and Landlords
- Landlords: Increases above 38.36% are legally invalid.
- Tenants: Should consider this rate when renewing leases and protect their rights against excessive increase demands.
- Disputes: Cases can be filed in Civil Courts of Peace in case of disagreement.
Frequently Asked Questions
38.36% (12-month CPI average).
No, it ended in July 2024. Increases are now based on CPI.
No. Any excess is invalid and may lead to legal disputes.
Current rent is increased by 38.36%.
Yes, CPI is also used for commercial property rents.
Yes, parties can agree to increases below the CPI rate.
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This Briefing is for Informational Purposes; it is not Legal Advice. If You Have any Questions, Please Contact Us. All Rights Reserved.
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