As of August 2025, there were a total of monetary financial institutions (MFIs) operating across the countries of the European Union, of which the majority were credit institutions (banks). The definition of MFIs according to the European Central Bank (ECB) is ''resident credit institutions as defined in European Union (EU) law and other resident financial institutions whose business is to receive deposits and/or close substitutes for deposits from entities other than MFIs and, for their own account (at least in economic terms), to grant credits and/or make investments in securities."Â