Maryland Statutes
Part III - Refunds
Section 20-113 - Claimants

A claim for a refund may be filed with the tax collector who collects the tax, fee, charge, interest, or penalty by a claimant who:
        (1)    erroneously pays to a county or municipality a greater amount of tax, fee, charge, interest, or penalty than is properly and legally payable; or
        (2)    pays to a county or municipality a tax, fee, charge, interest, or penalty that is erroneously, illegally, or wrongfully assessed or collected in any manner.