Irish Revenue has cut Mineral Oil Tax rates on petrol, diesel and gas oil from 15 April 2026. The scheduled carbon tax increase is postponed until 14 October 2026, easing near‑term energy costs.
Irish Revenue published eBrief No. 078/26 on 15 April 2026, announcing a reduction in mineral oil tax on certain fuels, and a postponement of the scheduled carbon tax increase.
The Tax and Duty Manual on Excise Duty Rates on Energy Products and Electricity Taxes has been updated to reflect these changes. It confirms temporary reductions in Mineral Oil Tax rates on petrol, auto-diesel, marked gas oil, and their substitutes from 15 April 2026.
It also confirms that carbon tax increases, which were previously scheduled to take effect on 1 May 2026, have been deferred to 14 October 2026.