KRAFT LAW & CONSULTANCY
Rent Increase Calculator
Calculate your rent for the new period.
Enter the monthly rent and the renewal period. Compare the CPI ceiling or the fixed increase rate in your contract.
A new period,
a clear calculation.
The new monthly rent, the increase and the rate used will appear here.
How is a rent increase calculated?
Current monthly rent × increase rate / 100 gives the monthly increase. This amount is added to the current rent. When you compare the fixed percentage rate in the contract, the calculation uses whichever is lower: that rate or the relevant CPI ceiling.
For example, for a November 2026 renewal, with a rent of TRY 25,000.00 and a CPI ceiling of 31.23%, the monthly increase is TRY 7,807.50; under the ceiling the new monthly rent is TRY 32,807.50.
Frequently asked questions
Which CPI rate is used?
The change in the general CPI based on twelve-month averages is used; neither monthly inflation nor the annual rate of change is used. For example, for a November renewal, the October figure published in November is shown. For renewals at the start of the month, before the bulletin is published, how the contract applies should be assessed separately.
What if my contract has a lower rate?
Enter your rate using the “Compare the fixed rate in the contract” option. If that rate is below the CPI ceiling, the calculation uses the lower rate. Where there is no increase clause, or the clause sets out a different method of calculation, it should not be concluded that a CPI increase applies automatically.
Does this result also apply to tenancies of more than five years?
In tenancies of more than five years, determining the rent may also involve other factors such as comparable rents, the condition of the property and fairness. This tool does not calculate the rent to be set by a court.
Can past or future years be calculated?
This version contains verified data for the January–November 2026 renewal periods. New bulletins are added to the table of periods once verified; there is no live data connection. No estimated rate is applied to periods that have not been announced. Special caps in past periods, rents in foreign currency, adaptation of the rent and setting the first rent under a new contract are outside its scope.
Legal basis: Turkish Code of Obligations No. 6098, art. 344 (in Turkish). Data last checked: 7 November 2026.
Amounts are calculated to the nearest 0.01 TRY. The annual total is the calculated monthly rent × 12; service charges, taxes, withholding tax and other costs are not included.