# Turkey Rent Increase Rate, October 2026: Legal Cap

Under article 344 of the Turkish Code of Obligations, the rent increase at a renewal of a residential or roofed commercial tenancy may not exceed the change in the 12-month average of the consumer price index (CPI) over the previous rent year. The rate is set each month with TurkStat's inflation data. The maximum rent increase for tenancies renewed in October 2026 is 31.49%: the change in the 12-month average of the CPI to September 2026 (TurkStat; Turkish Code of Obligations, art. 344). For example, a rent of TRY 20,000.00 a month renewed in October 2026 can rise to at most TRY 26,297.53.

| Fact | Value |
|---|---|
| Rent increase rate | 31.49% (renewals in October 2026) |
| Data month | September 2026 |
| Read | Read from EVDS: Oct 27, 2026, 18:00 |

Rent increase calculator: Enter the current rent and the month your rent year renews; the calculator shows the highest new rent the legal cap allows.

## Rent increase rate by month

| Renewal month | Data month | Rent increase cap | Annual CPI |
|---|---|---|---|
| October 2026 | September 2026 | 31.49% | 29.73% |
| September 2026 | August 2026 | 31.79% | 31.50% |
| August 2026 | July 2026 | 31.90% | 31.76% |
| July 2026 | June 2026 | 32.03% | 32.10% |
| June 2026 | May 2026 | 32.24% | 32.62% |
| May 2026 | April 2026 | 32.43% | 32.37% |
| April 2026 | March 2026 | 32.83% | 30.87% |
| March 2026 | February 2026 | 33.40% | 31.54% |
| February 2026 | January 2026 | 33.98% | 30.65% |
| January 2026 | December 2025 | 34.88% | 30.89% |
| December 2025 | November 2025 | 35.91% | 31.07% |
| November 2025 | October 2025 | 37.15% | 32.87% |
| October 2025 | September 2025 | 38.36% | 33.29% |
| September 2025 | August 2025 | 39.62% | 32.95% |
| August 2025 | July 2025 | 41.13% | 33.52% |
| July 2025 | June 2025 | 43.23% | 35.05% |
| June 2025 | May 2025 | 45.80% | 35.41% |
| May 2025 | April 2025 | 48.73% | 37.86% |
| April 2025 | March 2025 | 51.26% | 38.10% |
| March 2025 | February 2025 | 53.83% | 39.05% |
| February 2025 | January 2025 | 56.35% | 42.12% |
| January 2025 | December 2024 | 58.51% | 44.38% |
| December 2024 | November 2024 | 60.45% | 47.09% |
| November 2024 | October 2024 | 62.02% | 48.58% |

## How the rate is calculated

- The average CPI of the last twelve months is divided by the average of the twelve months before; 1 is subtracted and the result multiplied by 100.
- The rate of a data month applies to rents renewed in the following month: TurkStat publishes the September 2026 data early in October 2026.
- New rent = current rent × (1 + rent increase rate ÷ 100). The parties may agree on a smaller increase.
- The rate is calculated on the index base of the month it ends in (2003=100 up to December 2025, then 2025=100); December 2023 and December 2024 give the 53.86% and 58.51% TurkStat announced.

## Frequently asked questions

### What is the rent increase rate for October 2026?

For rents renewed in October 2026 the legal cap is 31.49%, the 12-month average change calculated from TurkStat's September 2026 inflation data.

### How is the rent increase rate set in Türkiye?

Under article 344 of the Turkish Code of Obligations, the increase at a renewal may not exceed the change in the 12-month average of the CPI over the previous rent year. The rule also applies to tenancies longer than one year.

### Does the 25% cap on rent increases still apply?

No. The 25% cap applied to residential tenancies renewed between 11 June 2022 and 1 July 2024 inclusive (temporary articles 1 and 2). Since then only the 12-month average change of the CPI applies.

### Does the cap apply to commercial rents?

Yes. Article 344 is among the rules on residential and roofed commercial tenancies. The temporary 25% cap applied to residential tenancies only.

### What happens after five years?

For tenancies longer than five years or renewed after five years, at the end of every five years a judge may set the new rent fairly, taking into account the 12-month average change of the CPI, the condition of the property and comparable rents (art. 344/3).

### What if the rent is set in a foreign currency?

If the rent is agreed in a foreign currency, it may not be changed before five years have passed, subject to the law on the protection of the value of the Turkish currency (art. 344/4).

This page gives general information and is not legal advice. Ask a lawyer about the specifics of your tenancy.

Source: TurkStat, Consumer Price Index (2003=100 and 2025=100), via the Electronic Data Delivery System (EVDS) of the Central Bank of the Republic of Türkiye; Turkish Code of Obligations No. 6098, art. 344 and temporary articles 1–2.

## Related pages

- [Turkey inflation rate and calculator](https://lzzo.com/turkey-inflation-rate)
- [Turkish economy](https://lzzo.com/turkey-economy)

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