Irish inflation reaches 4.1% as housing and energy costs rise

Ireland’s Central Statistics Office said on Thursday, 8 October, that consumer prices rose 4.1% in the year to September 2026, the highest annual inflation rate since January 2024. The figure rose from 3.7% in August as higher housing and energy-related costs added to the pressure on households. It measures the change in a basket of prices across Ireland, rather than the increase in any one household’s bills.

The September rate matched the 4.1% recorded in January 2024. Prices rose 0.2% between August and September this year, according to the CSO’s Consumer Price Index. That monthly change answers a different question from the annual rate: it compares prices with the preceding month, while the 4.1% figure compares them with September 2025.

Which Irish prices rose most in September?

Housing, water, electricity, gas and other fuels recorded the largest increase among the main spending divisions over the year, at 9.5%. Education services rose 8.9%, while transport rose 7.5%. The CSO linked the housing-related increase to higher prices for home heating oil and electricity, as well as rents and mortgage-interest repayments. It said dearer diesel, petrol and air fares helped drive the transport increase.

The figures show why a single inflation rate cannot describe every household’s experience. A household paying rent, filling a car or buying home heating oil faces a different mix of costs from one that spends less on those items. The CPI records an average price movement across its basket; it does not say that each household paid exactly 4.1% more for its own purchases.

How broad was the rise in consumer prices?

No main CPI division recorded an annual fall in September, the third consecutive month in which all 13 divisions rose from a year earlier. The CSO said that, before July 2026, it had not recorded annual increases across every division in a single month, including during the high-inflation period of 2022 and 2023. The breadth of the increases matters alongside the headline rate: households cannot necessarily offset a higher bill in one category with falling prices in another.

A measure excluding energy and unprocessed food rose 3.1% over the year, below the 4.1% headline rate. The two figures describe different baskets; the lower measure does not remove energy bills from households’ budgets. Within the latest monthly figures, clothing and footwear rose 2.5%, the largest division increase, while housing, water, electricity, gas and other fuels rose 1.2%. Recreation, sport and culture fell 1.9% from August, the largest monthly decline.

What do the figures say about prices ahead?

September’s CPI shows what happened to prices through that month, rather than what households will pay later in the year. The Irish Times reported that the Central Bank forecasts headline inflation averaging 3.4% in 2026, 3.1% in 2027 and 2% in 2028. It also reported the bank’s warning that uncertainty over the Middle East conflict creates significant upside risk to those projections. Those annual forecasts are possible outcomes, not readings from the September index.

The Irish Times quoted Dermot Daly, EY Ireland’s consumer products and retail lead, as saying that higher essential costs may cause consumers to prioritise necessities and be more selective about discretionary spending. The newspaper also quoted RSM chief economist Thomas Pugh as warning that sustained energy costs could feed into utility bills and prices for food, manufactured goods and air fares. Both comments describe potential effects; the CPI release does not establish that every household has changed its spending or that those later price increases will occur.