If the Department of Revenue finds any claim for a property tax rebate or rent rebate in lieu of property taxes to have been overpaid for any reason, it may deduct or offset the amount overpaid on that claim from a valid subsequent claim filed by the claimant or claimant's spouse provided that the Department shall notify the subsequent claimant of the reason for and the amount of the deduction or offset.
61 Pa. Code § 403.7