Guaranty Federal Bancshares, Inc. is the savings and loan holding company for Guaranty Federal Savings Bank (the Bank). The Company operates through banking operation segment. The banking segment is engaged in the business of originating mortgage loans secured by one- to four-family residences, multi-family, construction, commercial and consumer loans. The Bank's primary market areas are Greene and Christian Counties, which are in the southwestern corner of Missouri, and includes the cities of Springfield, Nixa and Ozark, and Missouri. The Bank's loan portfolio consists of mortgage loans, including one- to four-family loans, multi-family loans, construction loans and commercial real estate loans; commercial business loans, and consumer loans. The Bank invests in mortgage-backed securities, the United States Government and federal agency securities, and other marketable securities. The Company owns Guaranty Statutory Trust I and Guaranty Statutory Trust II.