If it shall appear that an amount of tax has been paid which was not due under the provisions of this subchapter, whether as the result of a mistake of fact or an error of law, then that amount shall be credited against any tax due, or to become due, under this subchapter from the taxpayer who made the erroneous payment; provided that no amounts erroneously paid more than 3 years prior to the filing of a claim therefor shall be so credited.
(1969 Code, § 24-58) (Ord. 1979-31, passed 10-9-1979)