PARIS, France – Year-on-year headline inflation in the OECD, as measured by the Consumer Price Index (CPI), remained stable at 4.1 percent in August 2025, having hovered around this rate since March.
Year-on-year headline inflation in the OECD, as measured by the Consumer Price Index (CPI), remained stable at 4.1 percent in August 2025 (Table 1 and Figure 3), having hovered around this rate since March. In August, it rose in 15 of the 38 OECD countries, declined in 13, and was stable or broadly stable in the remaining 10. Costa Rica fell further into deflation in August and inflation remained close to zero in Switzerland. Inflation was above 5.0% in Colombia and Estonia, and above 30 percent in Türkiye.
Year-on-year food inflation in the OECD rose to 5.0 percent in August, up from 4.5 percent in July, reaching its highest level since February 2024 and with marked increases recorded in Türkiye, Korea, and Colombia. In August, food price levels in the OECD were 45.8 percent higher than in December 2019, before the Covid pandemic, supply chain disruptions and start of the war in Ukraine (Figure 2). This marks the largest cumulative increase among the three main inflation components – core (inflation less food and energy), food, and energy.
Prior to this period, it took around 16 years – from May 2003 to late 2019 – for food prices to increase by a similar magnitude. However, food price inflation varied significantly across countries between December 2019 and August 2025: the cumulative increase in food prices over this period was only 6.9 percent in Switzerland while it reached around 80 percent in Colombia and Hungary, and more than 790 percent in Türkiye. Energy inflation in the OECD also rose in August, reaching 0.7 percent, compared with 0.3 percent in July, while core inflation edged down slightly to 4.3 percent.
In the G7, year-on-year headline inflation remained broadly stable at 2.7 percent in August. It increased by 0.2 p.p. in Canada, Germany, and the United States. By contrast, it fell in Japan, reflecting a decline in food inflation and an even stronger decline in energy inflation. Core inflation remained the main contributor to headline inflation across the G7 except in Japan, where food and energy inflation combined had a larger impact (Figure 4).
In the euro area, year-on-year inflation, as measured by the Harmonised Index of Consumer Prices (HICP), remained stable in August, at 2.0 percent for the third consecutive month. Food inflation was stable at 3.2 percent, twice the rate seen in January 2025, while the decline in energy prices slowed. According to Eurostat’s flash estimate, in September 2025, year-on-year headline inflation in the euro area rose to 2.2 percent as the decline in energy prices slowed again while core inflation is estimated to have remained stable.
In the G20, year-on-year inflation remained broadly stable at 3.7 percent in August. Headline inflation fell in China, where it was negative at minus 0.4 percent. It also fell in Argentina (still above 30%) and South Africa, while it rose in India. It was broadly stable in Brazil, Indonesia, and Saudi Arabia (Table 2).
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