The price of new TaxSaver commuter tickets will fall by 20 per cent from the 1st of April.
The National Transport Authority says it's the first phase of reductions to public transport fares which were announced by the government last month as part of efforts to reduce the cost of living.
A 20 per cent cut in fares for public services outside Dublin comes into effect from the middle of April.
While tickets in the greater Dublin area will see a reduction from early May.
Anne Graham, CEO of the NTA, says people with existing TaxSaver tickets will also benefit;
"For those that have already purchased an annual ticket at the non-reduced rate they will also benefit by getting an additional three month period of validity automatically added to their existing annual tickets and they don't have to do anything about that."
Yesterday the Transport Minister Eamon Ryan ruled out making public transport free for the rest of the year.