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Turkey Rent Increase Rate, October 2026: Legal Cap

Under article 344 of the Turkish Code of Obligations, the rent increase at a renewal of a residential or roofed commercial tenancy may not exceed the change in the 12-month average of the consumer price index (CPI) over the previous rent year. The rate is set each month with TurkStat's inflation data.

The maximum rent increase for tenancies renewed in October 2026 is 31.49%: the change in the 12-month average of the CPI to September 2026 (TurkStat; Turkish Code of Obligations, art. 344). For example, a rent of TRY 20,000.00 a month renewed in October 2026 can rise to at most TRY 26,297.53.

Rent increase rate · renewals in October 2026

31.49%

For example, a rent of TRY 20,000.00 a month renewed in October 2026 can rise to at most TRY 26,297.53.

TurkStat September 2026 data · Read from EVDS: Oct 27, 2026, 16:00

Rent increase calculator

Enter the current rent and the month your rent year renews; the calculator shows the highest new rent the legal cap allows.

Legal cap 31.49%: the new rent can be at most TRY 26,297.53.The increase can be at most TRY 6,297.53.

Rent increase cap over time

September 2026

  • 12-month average CPI change31.49%

The 12-month average CPI change: latest 31.49% (September 2026). Between December 2004 and September 2026, the highest was 72.45% (January 2023) and the lowest 5.93% (October 2011).

Rent increase rate by month

Legal cap by renewal month, the data month it rests on and annual inflation; newest first
Renewal monthData monthRent increase capAnnual CPI
October 2026September 202631.49%29.73%
September 2026August 202631.79%31.50%
August 2026July 202631.90%31.76%
July 2026June 202632.03%32.10%
June 2026May 202632.24%32.62%
May 2026April 202632.43%32.37%
April 2026March 202632.83%30.87%
March 2026February 202633.40%31.54%
February 2026January 202633.98%30.65%
January 2026December 202534.88%30.89%
December 2025November 202535.91%31.07%
November 2025October 202537.15%32.87%
October 2025September 202538.36%33.29%
September 2025August 202539.62%32.95%
August 2025July 202541.13%33.52%
July 2025June 202543.23%35.05%
June 2025May 202545.80%35.41%
May 2025April 202548.73%37.86%
April 2025March 202551.26%38.10%
March 2025February 202553.83%39.05%
February 2025January 202556.35%42.12%
January 2025December 202458.51%44.38%
December 2024November 202460.45%47.09%
November 2024October 202462.02%48.58%

How the rate is calculated

  • The average CPI of the last twelve months is divided by the average of the twelve months before; 1 is subtracted and the result multiplied by 100.
  • The rate of a data month applies to rents renewed in the following month: TurkStat publishes the September 2026 data early in October 2026.
  • New rent = current rent × (1 + rent increase rate ÷ 100). The parties may agree on a smaller increase.
  • The rate is calculated on the index base of the month it ends in (2003=100 up to December 2025, then 2025=100); December 2023 and December 2024 give the 53.86% and 58.51% TurkStat announced.

This page gives general information and is not legal advice. Ask a lawyer about the specifics of your tenancy.

Source: TurkStat, Consumer Price Index (2003=100 and 2025=100), via the Electronic Data Delivery System (EVDS) of the Central Bank of the Republic of Türkiye; Turkish Code of Obligations No. 6098, art. 344 and temporary articles 1–2.

Related pages

Frequently asked questions

What is the rent increase rate for October 2026?

For rents renewed in October 2026 the legal cap is 31.49%, the 12-month average change calculated from TurkStat's September 2026 inflation data.

How is the rent increase rate set in Türkiye?

Under article 344 of the Turkish Code of Obligations, the increase at a renewal may not exceed the change in the 12-month average of the CPI over the previous rent year. The rule also applies to tenancies longer than one year.

Does the 25% cap on rent increases still apply?

No. The 25% cap applied to residential tenancies renewed between 11 June 2022 and 1 July 2024 inclusive (temporary articles 1 and 2). Since then only the 12-month average change of the CPI applies.

Does the cap apply to commercial rents?

Yes. Article 344 is among the rules on residential and roofed commercial tenancies. The temporary 25% cap applied to residential tenancies only.

What happens after five years?

For tenancies longer than five years or renewed after five years, at the end of every five years a judge may set the new rent fairly, taking into account the 12-month average change of the CPI, the condition of the property and comparable rents (art. 344/3).

What if the rent is set in a foreign currency?

If the rent is agreed in a foreign currency, it may not be changed before five years have passed, subject to the law on the protection of the value of the Turkish currency (art. 344/4).