TÜİK: Turkey's Annual Inflation Eased to 29.73% in September 2026
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In brief
Turkey's Statistical Institute (TÜİK) announced on October 5, 2026 that annual consumer inflation fell to 29.73% in September, down from 31.51% in August. It is the first reading below 30% since November 2021, while monthly inflation stood at 1.84%.
Turkey's Statistical Institute (TÜİK) released its September 2026 Consumer Price Index (CPI) data on Monday, October 5, 2026. Annual inflation was calculated at 29.73%, down from 31.51% in August, according to the official figures.
Monthly inflation came in at 1.84% for September, matching August's monthly rate, TÜİK reported. The reading marked the fourth consecutive monthly decline in the annual rate and the first time annual inflation has dropped below 30% since November 2021.
The September Figures
Beyond the headline annual and monthly rates, TÜİK published several related indicators. The 12-month average change in the CPI — a separate metric used for certain legal and contractual purposes — was 31.49%.
TÜİK September 2026 CPI data
Indicator
Value
Monthly CPI change
1.84%
Annual CPI change
29.73%
12-month average change
31.49%
Core C index (annual)
28.70%
B index (annual)
29.00%
Category Breakdown
Among the main expenditure groups, annual price increases were highest in housing, water, electricity, gas and other fuels at 39.99%, followed by transportation at 35.10% and food and non-alcoholic beverages at 27.62%, according to TÜİK data reported by Daily Sabah and Euronews Turkish.
On a monthly basis, food and non-alcoholic beverage prices fell by 0.20%, while transportation rose by 2.79% and housing-related costs increased by 2.71%, Daily Sabah reported citing the TÜİK breakdown.
Impact on October Rent Increases
Under Turkish law, rent increases for existing residential leases are capped at the 12-month average change in the CPI as announced by TÜİK. For contracts renewing in October 2026, that cap is 31.49%, based on the September data, as reported by NTV and Euronews Turkish.
Independent Estimate Diverges Sharply
The Inflation Research Group (ENAG), an independent group of economists that publishes its own price index, calculated September's annual inflation at 46.61% and monthly inflation at 2.10% — both significantly higher than TÜİK's figures, according to Euronews Turkish.
ENAG and TÜİK have published diverging inflation estimates for several years, with ENAG consistently reporting higher rates. Neither this report nor the cited sources provide a reconciliation between the two methodologies.
Official Reaction
Public workers' and retirees' salaries will increase at minimum by inflation levels.
— Mehmet Şimşek, Treasury and Finance Minister, cited by Euronews Turkish
Minister Şimşek noted that the September reading was the first time in 57 months — since November 2021 — that annual inflation fell below 30%, according to Milliyet's Uzmanpara. He also said he expected rent and education inflation to decline further in 2027, per Milliyet's Uzmanpara.
Questions
What was Turkey's annual inflation rate in September 2026?
TÜİK announced annual consumer inflation of 29.73% for September 2026, down from 31.51% in August, according to the official data released on October 5, 2026.
Why does the rent increase cap for October 2026 differ from the annual inflation rate?
Turkish law bases residential rent increase caps on the 12-month average change in the CPI rather than the year-on-year rate. For October 2026 that average was 31.49%, compared with the 29.73% annual headline rate, per NTV and Euronews Turkish.
Why do TÜİK and ENAG report different inflation figures?
TÜİK is Turkey's official statistical institute, while ENAG is an independent research group using its own methodology. For September 2026, TÜİK reported 29.73% annual inflation versus ENAG's 46.61%, a gap the cited sources do not reconcile.
Which product categories saw the highest annual price increases in September 2026?
According to TÜİK data reported by Daily Sabah, housing, water, electricity, gas and other fuels rose 39.99% year-on-year, followed by transportation at 35.10% and food and non-alcoholic beverages at 27.62%.
How the world is telling it
TurkishTurkish outlets such as Milliyet, Cumhuriyet, NTV and Euronews Turkish framed the data primarily around its practical effects: the first sub-30% annual reading since November 2021, the resulting October rent-increase cap of 31.49%, and the large gap with the independent ENAG index, alongside Minister Şimşek's comments on wages and rents.
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