The Bank was forced to close its doors for a short period of time during the bank holiday of the Great Depression. A group of local businessmen reorganized the bank and chartered it as the Newton National Bank. In 1977 the bank was re-titled First Newton National Bank. In 1981 First Newton National Bank acquired the adjacent building for additional space. In 1998 the Bank went through a complete interior remodeling to better utilize space and serve the public. In 2008 the Bank remodeled the building next door for what was a much needed increase in additional space; today that space consists of conference rooms and office space. Also in 2008, Robert M. Kahn, a 4th generation banker, came back to First Newton National Bank to continue the tradition and values that First Newton National has always operated under.

To this day the Bank continues to be Newton's only locally owned financial institution.
    The Bank has always been innovative in the use of new ideas and technology. First Newton National Bank was the first bank in Newton to offer ATM cards and have Automated Teller Machines. In 1997 Bank-by-Phone was added and in early 2000 the Bank began offering Internet Banking to its customers. In 2012 the Bank rolled out a mobile banking application for utilization on its customer's phones. In 2016 that application was updated and modified to allow for mobile deposit. Also in 2016, the Bank made the decision to convert to a State Chartered institution and transition from its National Bank Charter. With that conversion the Bank will have had to change its name to FNNB Bank.
    FNNB Bank is still a locally owned, "hometown" bank with a long history of providing efficient, courteous service to all its customers..