Iglesia Del Dios Vivo Columna Y Apoyo De La Verdad La Luz Del Mundo, Inc. v. Downing, 321 Ga. App. 778 (2013) addressed this issue, and the answer, quite simply, is NO. (Bonus points for being able to say the plaintiff’s name in that case three times fast.)
The guiding statute is O.C.G.A. § 48-4-5, which provides that any excess funds existing “after paying taxes, costs, and all expenses of a sale made by the tax commissioner” shall be distributed “to the owner or owners as their interests appear in the order of priority in which their interests exist.”
So, while a tax commissioner is authorized to apply excess funds to satisfy outstanding property taxes owed by the delinquent taxpayer that accrued before the tax sale, it can’t do so after the tax sale. This reasoning for this is that the tax deed purchaser, not the delinquent taxpayer, is liable for post-tax sale property taxes.
What about a situation in which post-tax sale property taxes accrue before the tax deed purchaser has barred the right of redemption? In this situation, the delinquent taxpayer still has possession and the tax deed purchaser doesn’t have full title. Is the delinquent taxpayer jointly liable with the tax deed purchaser? According to the Downing case, the answer is no. Only the tax deed purchaser is liable for post-tax sale property taxes; this is regardless of whether the right to redeem has been barred.