Drivers are being warned tolls are likely to see a price hike for the second time early next year.
It would come on top of price increases that will take effect this weekend.
From Saturday - tolls for cars are going up on 7 roads.
They are going from 2 euro to 2.10 on the M1, M7, M8, N25 and the Limerick Tunnel.
While it's going up 20 cents to 3.20 on the M4 and 20 or 30 cents on the M50 - depending on whether you have a tag.
Now Transport Infrastructure Ireland is warning of further increases from next January because of inflation.
CEO Peter Walsh says it's necessary.
"Costs are going up. They're going up for everybody. It's 250 people employed in those various toll operations, so costs are rising for them as well."
However, the AA doesn't agree.
It says the Government may have to step in to stop a further hike in tolls.
Paddy Comyn from the AA says people are already struggling.
"We might need the government again to intervene because with the increases across the board for electricity for petrol, diesel and other costs. I think we will see a point where motorists just will say enough is enough."