Ind. Code § 6-2.5-6-11

Sec. 11. A retail merchant who extends assistance to a heating assistance program administered under IC 4-4-33 may deduct from the retail merchant's state gross retail and use tax payment an amount equal to all or part of the aggregate assistance extended by the retail merchant to a heating assistance program administered under IC 4-4-33 during the reporting period for which the state gross retail and use tax payment is made.