Fares for Luas journeys are to increase by 6.6 per cent from today.
Adult single tickets are getting the biggest rise, with an extra 10 cent on fares regardless of the length of journey.
The Railway Procurement Agency (RPA) has increased all fares have except child fares and Smartcard fares. The RPA decided to keep these at 2007 prices to encourage passengers to stop buying tickets at platform ticket machines and switch to the prepaid cards.
The 10 cent increase applies to adult single peak-time and adult return fares. Adult seven-day fares are rising by between 40 cent and 60 cent, while adult 30-day fares are increasing by between €1.70 and €2. Student fares are being increased by between 30 cent and 50 cent for seven-day tickets, and between €1.30 and €2 for 30-day tickets.
Adults can save up to 30 cent a trip by buying Smartcards, according to the RPA. Yet most passengers still buy single tickets from platform machines, which is the most expensive ticket option.
The RPA said the price hike was needed to cover costs.
Dart, Intercity and Commuter services will also go up by 5 per cent on average from Wednesday. An adult single rail fare from Dublin to Cork will now cost €59.50 and €45.50 to Limerick.