Fuel prices have seen their biggest monthly increase in nearly two years.
The AA says petrol and diesel are up by 5 cent a litre, compared to December.
Petrol prices are now at their highest since March 2015.
The AA says the average cost of a litre of petrol is just over €1.36, while diesel is just under €1.27.
It is calling for a reduction in what it calls "excessive" fuel taxes.
An estimated 63% of the retail price of petrol consists of taxes.
Conor Faughnan, Director of Consumer Affairs at AA Ireland highlighted. “While it’s impossible to know what the long-term future holds when it comes to fuel prices, currently all the factors which inform prices are trending into the wrong direction for motorists.”