**Exhibit 31.2**
 
 **Certification
        of the Principal Financial Officer**
 **Rule
        13a-14(a) of the Securities Exchange Act of 1934**
 
 I,
        Bruce
        Winston, certify that:
 
 1.
        I have
        reviewed this annual report on Form 10-K of Guaranty Federal Bancshares,
        Inc.;
 
 2.
        Based
        on my knowledge, this report does not contain any untrue statement of a material
        fact or omit to state a material fact necessary to make the statements made,
        in
        light of the circumstances under which such statements were made, not misleading
        with respect to the period covered by this report;
 
 3.
        Based
        on my knowledge, the financial statements, and other financial information
        included in this annual report, fairly present in all material respects the
        financial condition, results of operations and cash flows of the registrant
        as
        of, and for, the periods presented in this report;
 
 4.
        The
        registrant's other certifying officers and I are responsible for establishing
        and maintaining disclosure controls and procedures (as defined in Exchange
        Act
        Rules 13a-15(e) and 15d-15(e)) for the registrant and we have:
 
 a)
        Designed such disclosure controls and procedures, or caused such disclosure
        controls and procedures to be designed under our supervision, to ensure that
        material information relating to the registrant, including its consolidated
        subsidiaries, is made known to us by others within those entities, particularly
        during the period in which this report is being prepared;
 
 b)
        [Reserved - not effective]
 
 c)
        Evaluated the effectiveness of the registrant's disclosure controls and
        procedures and presented in this report our conclusions about the effectiveness
        of the disclosure controls and procedures, as of the end of the period covered
        by this report based on such evaluation; and
 
 d)
        Disclosed in this report any change in the registrant’s internal control over
        financial reporting that occurred during the registrant’s fourth fiscal
        quarter that has materially affected, or is reasonably likely to materially
        affect, the registrant’s internal control over financial reporting;
        and
 
 5.
        The
        registrant's other certifying officers and I have disclosed, based on our
        most
        recent evaluation of internal controls over financial reporting, to the
        registrant's auditors and the audit committee of registrant's board of directors
        (or persons performing the equivalent function):
 
 a)
        All
        significant deficiencies and material weaknesses in the design or operation
        of
        internal control over financial reporting which are reasonably likely to
        adversely affect the registrant's ability to record, process, summarize and
        report financial information; and
 
 b)
        Any
        fraud, whether or not material, that involves management or other employees
        who
        have a significant role in the registrant's internal control over financial
        reporting.
 
 Date: March
        31, 2006     /s/
        Bruce Winston
 Bruce Winston
 Chief Financial Officer
 (Principal Financial Officer)