This includes ATM transactions.
€8.5 billion was spent on credit and debit cards, including ATM transactions in May.
That's the highest value recorded by the Central Bank and represents an increase of 12% on April
The increase was predominantly driven by a monthly increase of €668 million in debit card point of sales spending.
The figures from the Central Bank show transport and accommodation sectors continue to see large year-on-year increases last month at 239% and 314% respectively.
Annual spending on clothing rose by 12% to €360 million.
Social spending increased dramatically in May compared to last year, it was up 85%, as the economy reopened with spending in restaurants, up 130% or €305 million and entertainment spending up 48% or €91 million.