"France has decided to put Panama back on the list of uncooperative countries, with all the consequences that will have for those who have transactions" with the central American state, Sapin told parliament.
Panama "wanted to have us believe that it could respect major international principles," Sapin said. "That's how it managed to avoid being on the blacklist of tax havens."
France removed Panama from the list of Uncooperative States and Territories (ETNC) in 2012 after the two countries reached a bilateral accord on fighting tax evasion.
The so-called Panama Papers, a massive leak of secret offshore financial dealings implicating world leaders and celebrities, has prompted several countries to open investigations.
Panama figured on a list of 30 tax havens last June when the European Commission unveiled its plan to combat tax evasion by multi-nationals.