Calculator

Rent Increase Calculator

Calculate the new rent instantly with the selected period’s CPI rate and the legal cap.

Calculator

CPI Increase Calculation

Bereken binnen wettelijke grenzen met actuele TÜFE-tarieven

TÜFE%39.62

Geselecteerde TÜFE-gegevens: 2025 September

TÜFE Tarief %39.62

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About CPI And Rent Increases

Legal cap
The increase rate may be capped by the legal upper limit for the period (often 25%).
What is CPI
The Consumer Price Index is the official inflation measure published by TurkStat.
Calculation period
Pick the CPI period that matches your contract renewal date.

How Is A Rent Increase Calculated?

New rent = current rent × (1 + applicable rate). If CPI exceeds the legal cap, the tool applies the cap.

Formula

New rent = Current rent × (1 + Applicable rate / 100)

Applicable rate = min(CPI, legal cap)

Track It With Kira Portal

Manage collections, reminders and renewals in one place — don’t miss increase dates.

Frequently Asked Questions

How is the rent increase rate set?
Usually the period’s CPI and the legal cap in force are considered together.
When can rent be increased?
For most residential leases, at the contract anniversary within the legal framework.
What if CPI exceeds the legal cap?
If a legal cap applies, the tool uses it and notes this on the result screen.
Is the calculator free?
Yes. It’s free — no signup required.