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The legal rent increase cap, month by month

Turkish lease renewals are capped by the CPI twelve-month average of the month before renewal, a number that changes every month. Pick your renewal month, and get the exact cap and the highest rent your landlord can lawfully ask.

Inputs

TRY / month

The cap comes from the CPI twelve-month average of the month before renewal.

Verified 22 Aug 2026TUIK CPI bulletins · Code of Obligations art. 344

Result

31.90%legal maximum increase for August 2026 renewals
₺39,570
highest lawful new rent
₺9,570
maximum increase amount
July 2026
CPI data month applied
41.13%Aug 25Sep 25Oct 25Nov 25Dec 25Jan 26Feb 26Mar 26Apr 26May 26Jun 26Jul 2631.90%Aug 26

The cap has fallen every month for over a year as inflation cools. 3 September 2026, 10:00: the TUIK August bulletin sets the cap for September renewals.

The same rule for homes and workplaces. The temporary 25% residential cap expired on 1 July 2024. The parties may always agree on a smaller increase; the cap binds increases during the first five years of the lease.
Methodology and sources

Code of Obligations art. 344 caps renewal increases at the change in the consumer price index by twelve-month averages for the last month of the expiring lease year. TUIK announces that value around the 3rd of each month; a renewal in month M is therefore governed by the data month M−1. The temporary 25% residential cap expired on 1 July 2024, leaving homes and roofed workplaces under the same rule. Parties may agree on less; within the first five years of the lease the cap binds, after which a court rent determination is possible.

  • CPI twelve-month averages, monthly series · TUIK Consumer Price Index bulletins
  • The cap rule for renewals · Code of Obligations (Law 6098), art. 344
  • Expiry of the temporary 25% residential cap on 1 July 2024 · Law 7409 temporary art. 1, not extended