Ireland Inflation Rises to 4.3% in October as Heating Costs Surge
Key Facts
Ireland’s consumer price index rose 4.3% year on year in October 2026, compared with an increase of 4.1% in the 12 months to September, according to the Central Statistics Office. The office said inflation reached its highest level since December 2023, when it was 4.6%. On a monthly basis, consumer prices rose 0.7% in October, compared with an increase of 0.5% in the same month a year earlier. The office said the index rose 4.3% between October 2025 and October 2026, following an annual increase of 4.1% in September. The figures put energy and home heating costs at the forefront of the pressures accompanying the acceleration in inflation.
The largest contribution to the annual increase came from the housing, water, electricity, gas and other fuels group, whose prices rose 10.7% and contributed 1.66 percentage points to inflation. Transport prices increased 9.0%, adding 0.99 percentage points to the index. The office attributed higher housing and energy costs to increases in heating oil, electricity and gas prices, alongside higher rents and mortgage interest payments. In transport, the office linked the increase to higher petrol and diesel prices and airfares. The contributions from the two groups show that the annual increase was not limited to fuel alone, but also included housing and transport costs.
Home heating oil prices rose 74.4% year on year in October, far exceeding the overall inflation rate of 4.3%. Electricity prices also increased 6.7% and gas prices 6.3% over the same period. In transport, diesel prices rose 27.9% and petrol prices 16.1% year on year. The Central Statistics Office listed fuel prices among the factors driving transport costs higher, alongside airfares. These rates reveal a wide divergence among energy and fuel items, with heating oil rising faster than electricity, gas and transport fuels.
Excluding energy and unprocessed food, the consumer price index rose 3.1% in the 12 months to October. That rate was below the headline inflation reading of 4.3%, as the housing and energy group made the largest sectoral contribution to the index. Rents also rose 7% in the year to October, while mortgage interest costs increased 10.8%. Rents contributed 0.44 percentage points to inflation, and mortgage interest added 0.32 percentage points. Over the five years to October 2026, rents rose 36% to their highest level since the office’s series began in November 1996, while mortgage interest costs increased 98.3% to their highest level since October 2008.
October’s reading extended an acceleration that began earlier, with annual inflation rising from 3.7% in August to 4.1% in September and then 4.3% in October. In September, the housing, water, electricity, gas and fuels group recorded an annual increase of 9.5%, compared with 10.7% in October, while transport prices rose 7.5% in September and then 9.0% in October. The Central Statistics Office is scheduled to publish the November consumer price index reading on 10 December 2026, alongside a report focused on household energy costs. The European Central Bank said the full December round of projections would help assess the impact of various factors on the economic outlook. The governor of the Central Bank of Ireland also said inflation expectations warranted monitoring, particularly with upcoming wage negotiations.