January 1, 2026
1. How is the Rent Increase Rate Determined in 2026?
According to Article 344 of the Turkish Code of Obligations No. 6098; the increase to be applied in renewed rental periods cannot exceed the change rate of the twelve-month average of CPI from the previous rental year.
Legal Upper Limit: This is the twelve-month average of CPI.
Validity: The same upper limit applies for both residential and commercial properties.
Freedom of Contract: The parties can agree on an increase below this rate; however, even if a figure above this rate is written in the contract, it is legally invalid.
2. Rent Increase Rate for Residential and Commercial Properties in 2026
In 2026, the difference in increases between residential and commercial properties has disappeared. In previous years, methods like the average of WPI+CPI were tried for commercial properties, but current regulations refer to the twelve-month average of CPI for both property types.
Annual Rent Increase Rate for Residential Properties: This is the twelve-month average of CPI.
Annual Rent Increase Rate for Commercial Properties: This is the twelve-month average of CPI.
3. Example of Calculating Rent Increase Rate
Let’s assume that your rental agreement is renewed in January 2026. Let's say the twelve-month average CPI announced by TurkStat is 40% (indicative figure):
Item | Calculation Amount |
Current Rent Amount | 20,000 TL |
Rent Increase Rate (CPI 12-Month Average) | 40% |
Amount of Increase | 8,000 TL |
New Monthly Rent Amount | 28,000 TL |
Note: The rent increase rate is determined based on the data of the previous month announced at the beginning of the month in which the increase will be made. For example; the data announced on January 3rd is used for the increase in January.
4. "Rent Determination Lawsuit" for Tenants with 5 Years
If your tenant has completed 5 years, and the current rent amount is significantly below the comparable rates in the area, you are not obliged to adhere to the CPI limit. You can file a Rent Determination Lawsuit to request a new price based on current rent amounts in the area.
As Homeyday, we especially support property owners during these critical 5-year periods by conducting comparative analysis to determine the most accurate income model.
No Increase Deadlock in Short-Term Rentals
In traditional long-term rentals, while you have the right to increase the rent once a year and are subject to legal limits; in the Airbnb and short-term rental model, the situation is different:
Dynamic Pricing: You can update your daily prices every week based on inflation and demand.
No Risk of Income Loss: You can immediately adapt to market conditions without being stuck with a one-year rent increase rate.
Rent Increase Rates 2025
Year | Month of Contract Renewal | Highest Rent Increase Rates (TurkStat) (for Residential and Commercial Properties) |
2025 | January | 58.51% |
2025 | February | 56.35% |
2025 | March | 53.83% |
2025 | April | 51.26% |
2025 | May | 48.73% |
2025 | June | 45.80% |
2025 | July | 43.23% |
2025 | August | 41.13% |
2025 | September | 39.62% |
2025 | October | 38.36% |
2025 | November | 37.15% |
2025 | December | 35.91% |
Will the rent increase limit continue to be 25% in 2026?
No, the 25% fixed rental increase limit in residential leases has completely ended. As of 2026, the legal upper limit for rent increases will be calculated based on the change rate according to the twelve-month averages of the CPI announced by TÜİK.
Can the landlord demand a rent increase above the inflation rate?
Legally, no. According to the Debt Law, the increase applied when renewing a lease agreement cannot exceed the 12-month average of the CPI. Even if a higher rate is specified in the contract, the tenant has the right to continue the contract by increasing it at the legal limit of the CPI rate.
Is the Workplace Rent Increase Rate Calculated Differently from Residential Properties?
As of 2026, the maximum increase rate applied to workplaces and residences is the same. The increase rate for both shop/office and residential rentals is calculated based on the 12-month average of the Consumer Price Index (CPI). If the parties did not agree on a lower rate in the contract, this rate is the legal upper limit.
Can the "Market Value" be requested when the tenant has completed 5 years?
Yes. If 5 years have passed since the start of the lease agreement, the landlord can file a "Rent Determination Lawsuit" to request that the rent be re-evaluated according to comparable market values. In this case, the CPI limit can be exceeded, and the court determines a new amount based on the current rental values in the area.
Is there an annual rent increase limit applied in short-term rentals (Airbnb)?
Short-term rentals (under 100 days) are considered tourism activities and are not subject to traditional rent increase restrictions. In this model, "dynamic pricing" applies; that is, the homeowner has the freedom to update their prices daily or weekly based on inflation, season, and demand.
