That was equivalent to 0.14 percent of Vietnams GDP, the highest rate in Southeast Asia, after Thailands 0.19 percent, the US financial services company Visa said in the study co-authored with market research firm Moodys.
Such GDP contribution equaled to the creation of around 75,000 jobs a year in Vietnam, Visa said.
Latest figures released by the State Bank of Vietnam showed the number of debit, credit and prepaid cards in the country reached 101.94 million at the end of March, up 18.2 percent year-on-year.
Card transactions were estimated at around VND70.07 trillion ($3.09 billion) in the first three months, an increase of 60.4 percent from a year ago, the central bank reported.