EMLAKBASE

Rent Increase Calculator

Enter the current rent and the 12-month average CPI rate to instantly see the new rent and increase amount under the legal cap.

₺
%
The rate TÜİK published for the month before your lease period started.

Latest recorded rate: 31.49%TÜİK September 2026 data · for leases renewing in October 2026

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Leave blank to apply the legal cap.
Applied rate
0%
Increase amount
₺0.00
New monthly rent (maximum)
₺0.00

This tool is for information only and is not legal advice. Check the rate against TÜİK’s official announcement. Legal basis: Turkish Code of Obligations No. 6098, Art. 344.

How is a rent increase calculated?

New rent = current rent × (1 + increase rate / 100). For residential and covered commercial properties, the increase may not exceed the change in the 12-month average CPI for the previous lease year. For example, with ₺25,000 monthly rent and a 30% rate, the increase is ₺7,500 and the new rent is at most ₺32,500.

For real estate agencies

Instead of tracking renewal dates for every rental in your portfolio one by one, keep your contracts in EmlakBase and follow expiring and upcoming renewals from the panel.

Frequently asked questions

What is the legal cap on rent increases?

Under Article 344 of the Turkish Code of Obligations, the increase for a renewed lease year on residential and covered commercial properties may not exceed the change in the 12-month average CPI (TÜFE) for the previous lease year.

Is the 25% rent increase cap still in effect?

No. The temporary 25% cap on residential rents ended on July 1, 2024; the 12-month average CPI rate applies today.

Which month’s rate should I use?

Use the 12-month average CPI change rate published by TÜİK for the month before your lease year renews. TÜİK publishes inflation data on the 3rd of each month. The rate from September 2026 data is 31.49%; it applies to leases renewing in October 2026. Check TÜİK’s announcements for later months.

What if the contract states a higher increase?

For residential and covered commercial properties, if the contractual rate exceeds the legal cap, the increase is reduced to the cap. If a lower rate was agreed, that rate applies.

What about leases older than five years?

For leases that exceed five years or are renewed after five years, a judge may set the new rent fairly, taking into account the CPI rate, the property’s condition and comparable rents.

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