280. Deputy Ken O'Flynn asked the Tánaiste and Minister for Finance the projected full year yield of the carbon tax increase to €78.50 per tonne scheduled for 2027; the estimated cost to the Exchequer of deferring that increase for a further year; the estimated per litre effect on petrol and on diesel of that increase; and if he will make a statement on the matter. [67949/26]

I am advised by Revenue that the projected yield from the increase to a charge of €78.50 per tonne of carbon dioxide emitted and, therefore, the estimated cost of deferring this increase for a further year, is shown in the following table. The Deputy should note that under the current schedule propellant fuels, including petrol and diesel, will increase to the €78.50 per tonne rate with effect from the 14 October 2026, while other fuels subject to the Carbon Charge will increase to this rate from the 01 May 2027.

Note: figures rounded to millions.

I am further advised by Revenue that the per litre effect on petrol and on diesel of the increase is shown in the following table.