In September 2025, the EU-standard Harmonized Index of Consumer Prices (HICP) in Ireland experienced a year-on-year increase of 2.7%, marking the fastest growth rate since January 2024. This is an acceleration from the previous month's 1.9% rise, as per preliminary data. The uptick was primarily driven by a 4.7% annual surge in food prices, coupled with a 1.0% increase in energy costs. In parallel, the core HICP—which excludes the more volatile components like energy and unprocessed food—also rose to 2.7% from 1.9% in August. On a monthly comparison, harmonized consumer prices declined by 0.2% in September, marking the first drop in eight months and reversing the 0.4% rise observed in August.