53 Pa. C.S. § 8717
The disposition of revenue from an earned income and net profits tax or an increase in the rate of an earned income and net profits tax imposed by school districts under the authority of this chapter shall occur in the following manner:
(1) For the fiscal year of implementation of a newly imposed income tax, all earned income and net profits tax revenue received by a school district shall be used first to offset any lost revenue to the school district from the taxes prohibited under section 8701(b) (relating to general tax authorization) in an amount equal to the revenue collected from the prohibited taxes in section 8701(b) in the preceding fiscal year; second, to provide for an increase in budgeted revenues over the preceding fiscal year in accordance with the amount specified in the referendum question approved by the voters under section 8703 (relating to adoption of referendum); and third, to reduce the school district real property tax in the following order:
(i) By means of an exclusion for homestead property pursuant to section 8583 (relating to exclusion for homestead property).
(ii) By means of a reduction in the millage rate after the limit on the exclusion for homestead property has been reached under section 8586 (relating to limitations).
(2) For the fiscal year of implementation of an increase in the rate of the existing earned income and net profits tax imposed under this chapter, all revenue received by a school district directly attributable to the increased rate shall be used to reduce the school district real property tax in the following order:
(i) By means of an exclusion for homestead property pursuant to section 8583.
(ii) By means of a reduction in the millage rate after the limit on the exclusion for homestead property has been reached under section 8586.
53 Pa.C.S. § 8717