Abacus Federal Savings Bank was founded in December, 1984 by a group of business leaders from the Chinese community in New York City . The founders' original purpose was to provide banking services to immigrants and local residents of lower Manhattan . As the Chinese immigrant population grew in the 80's and 90's, the Bank retained its original mission, but expanded its size and scope. It now has 6 branches covering New York , New Jersey and Pennsylvania . Besides the traditional banking services, it also offers insurance and securities through its subsidiaries. Abacus is federally chartered. Its mortgage and other services extend to all states in the United States .