Are you talking about a Federal financial institution? There is a regulatory requirement that Federal employees pay their "just financial obligations." The citation is 5 CFR § 2635.809 and reads as follows: Just financial obligations. Employees shall satisfy in good faith their obligations as citizens, including all just financial obligations, especially those such as Federal, State, or local taxes that are imposed by law. For purposes of this section, a just financial obligation includes any financial obligation acknowledged by the employee or reduced to judgment by a court. In good faith means an honest intention to fulfill any just financial obligation in a timely manner. In the event of a dispute between an employee and an alleged creditor, this section does not require an agency to determine the validity or amount of the disputed debt or to collect a debt on the alleged creditor's behalf.
As a financial institution, you may have a statute or an additional ethics regulation known as an "agency supplemental regulation." That would contain a reference to any statute that contains further restrictions for your agency. Hope this didn't muddy the waters for you!