The biggest increases were in transport, housing, water, electricity, gas and other fuels.
Inflation is at its highest level in 38 years, according to latest figures from the Central Statistic Office.
The cost of living rose 9.1% between June last year and this year - the highest rate of increase since 1984.
The most significant increases were in transport, housing, water, electricity, gas and other fuels.
It comes as the ministers for finance and public expenditure have been appearing at an Oireachtas Committee.
Elsewhere, Agricultural feed prices are up a third in the year to May.
CSO figures also show fertiliser prices are up 164% and energy input costs up by just over 50% in the year.
Overall the agricultural input price index rose by 41.6% in the 12 months to May.
Finance Minister Paschal Donohoe was asked whether he still thinks not holding an emergency budget was the right call:
Oireachtas Media Committee Won't Recommend Social Media Ban For Under 16s
Eurovision Song Contest Begins Tonight As Ireland And Other Countries Boycott
Some Chicken Products Recalled From Lidl Due To Salmonella Presence
Over 300,000 Names Removed From Electoral Register in Two Years
Government Departments Will Be Subject To Stricter Spending Controls
24 Hour Ambulance Worker Strikes Underway
Government Planning Package To Incentivise Ukrainian Refugees To Return Home
Baltinglass Resident Given Nine-Year Sentence For Sexual Assault Of Younger Cousins
