OECD inflation hit 4.6% in May, highest since 2024

OECD inflation rose to 4.6% in May from 4.4% in April, extending a climb from 3.4% in February, according to data released Sunday.oecd+1
Energy costs jumped 15.8% year-on-year, with Turkey posting the highest overall rate at 32.6% among 38 member states.trademagazin
Early signs suggest relief ahead, as a U.S.-Iran peace deal has pushed oil prices lower and eurozone inflation fell to 2.8% in June.europa+1

Consumer price inflation across the OECD accelerated to 4.6% in May 2026, up from 4.4% in April, driven by a continued surge in energy costs, the organization reported on July 6. The reading marks the highest level since August 2024 and extends a months-long upward trend that has seen OECD-wide inflation climb from 3.4% in February.democrata+2

Energy Prices Lead the Rise

Energy prices across OECD member states rose 15.8% year-on-year in May, sharply higher than the 13.2% recorded in April and 8.1% in March. Canada, Lithuania, Turkey, and the United States all saw energy cost increases exceeding 20%. In the United States, the Bureau of Labor Statistics reported that energy prices rose 23.5% over the year ended May 2026.trademagazin+2

Core inflation, which strips out volatile food and energy costs, also accelerated, reaching 3.8% from 3.6% in April. Food inflation, by contrast, eased to 3.6% from 4.0%.democrata+1

Uneven Picture Across Member States

The inflation rise was far from uniform. Of the OECD's 38 member states, 16 saw price increases accelerate in May, 14 recorded broadly stable rates, and eight saw inflation slow. Turkey continued to post the highest rate at 32.6%, while Costa Rica was the only country to record an outright decline in prices.trademagazin

Among G7 nations, headline inflation climbed 0.3 percentage points to 3.5%, with energy prices in the group rising 17% — the highest since November 2022. Japan maintained the lowest inflation rate among the G7 at 1.5%, and prices declined in Germany.democrata

Signs of Easing Ahead

The May data captures a period just before the peace agreement between the United States and Iran, which has since triggered a sharp correction in oil prices. Early indications suggest the energy-driven spike may already be fading. Eurostat's Euronext N.V. flash estimate for June showed euro area headline inflation falling to 2.8% from 3.2% in May, below market expectations of 3.0%. Energy's contribution eased to 8.7% from 10.8%, while services inflation also declined.tradingeconomics+2

Sources (24)