Ireland's budgetary watchdog has warned young people could be facing higher taxes to plug a gap in pensions.
Younger workers face paying an extra €2,500 a year so older people can retire at 66.
Irish Fiscal Advisory Council (IFAC) chairperson is Sebastian Barnes.
He told Newstalk Breakfast people need to be aware of what they face.
"It's not our job to decide how the pension system is run, what the pension age is and this kind of thing.
"We just want people to understand the choices that they face.
"And the risk at the moment is the easiest thing is to say 'Let's keep the pension age as it is' and everyone seems to be OK with that.
"But we need to understand what the consequences of this are."
He said there are two factors to this.
"One is that people are living longer, but also we have this big baby boom retiring.
"And that means a lot more people are going to be reaching retirement age.
"You take those two things together, and there's a massive cost to pay.
"If you look between now and 2030, the cost of providing pensions will probably go up by 4 to 5 billion over that whole period.
"It's a lot of extra money we have to find, next year it's about 500 million.
"So we really need to be thinking about these choices.
"Otherwise younger people - and it's not just the really young, it's people in their 40s, maybe even into their 50s - are going to be facing much higher taxes.
"That might be a choice people want to make, but they need to understand what the consequences are".
He suggested the Rainy Day Fund or a National Pension Reserve Fund could help ease some of these pressures.
In it's pre-budget submission, IFAC said while still strong, Ireland's recovery has lost some momentum in recent months.
And it said contrary to initial expectations, a "lasting upward shift in consumer prices" now seems likely.
"In the short term, the Government's budgetary stance must strike an appropriate balance between creating space to protect those most vulnerable to the rising cost of living and avoiding stoking inflation further", it said.
"To strike the right balance, the Government faces difficult choices and needs to prioritise what it wants to achieve."
It added that the global economic recovery has been hindered by sharp increases in the cost of living amid the war in Ukraine - as well as ongoing impacts of the pandemic.