(a) Beginning with the 2015-2016 school year and continuing through the 2021-2022 school year, a school district is entitled to additional state aid under this subchapter to the extent that state and local revenue used to service debt eligible under this chapter is less than the state and local revenue that would have been available to the district under this chapter as it existed on September 1, 2015, if the increase in the residence homestead exemption under § 1-b(c), Article VIII, Texas Constitution, and the additional limitation on tax increases under Section 1-b(d) of that article as proposed by S.J.R. 1, 84th Legislature, Regular Session, 2015, had not occurred.
(a-1) For the 2022-2023 school year, a school district is entitled to additional state aid under this subchapter to the extent that state and local revenue used to service debt eligible under this chapter is less than the state and local revenue that would have been available to the district under this chapter as it existed on September 1, 2021, if any increase in the residence homestead exemption under § 1-b(c), Article VIII, Texas Constitution, as proposed by the 87th Legislature, 3rd Called Session, 2021, had not occurred.

(a-2) Beginning with the 2023-2024 school year, a school district is entitled to additional state aid under this subchapter to the extent that state and local revenue used to service debt eligible under this chapter is less than the state and local revenue that would have been available to the district under this chapter as it existed on September 1, 2022, if any increase in a residence homestead exemption under § 1-b(c), Article VIII, Texas Constitution, and any additional limitation on tax increases under Section 1-b(d) of that article as proposed by the 88th Legislature, 2nd Called Session, 2023, had not occurred.
(b) Subject to Subsections (c), (d), and (e), additional state aid under this section through the 2021-2022 school year is equal to the amount by which the loss of local interest and sinking revenue for debt service attributable to the increase in the residence homestead exemption under § 1-b(c), Article VIII, Texas Constitution, and the additional limitation on tax increases under Section 1-b(d) of that article as proposed by S.J.R. 1, 84th Legislature, Regular Session, 2015, is not offset by a gain in state aid under this chapter.
(b-1) Subject to Subsections (c-1), (d), and (e), additional state aid under this section for the 2022-2023 school year is equal to the amount by which the loss of local interest and sinking revenue for debt service attributable to any increase in the residence homestead exemption under § 1-b(c), Article VIII, Texas Constitution, as proposed by the 87th Legislature, 3rd Called Session, 2021, is not offset by a gain in state aid under this chapter.
(b-2) Subject to Subsections (c-2), (d), and (e), additional state aid under this section beginning with the 2023-2024 school year is equal to the amount by which the loss of local interest and sinking revenue for debt service attributable to any increase in a residence homestead exemption under § 1-b(c), Article VIII, Texas Constitution, and any additional limitation on tax increases under Section 1-b(d) of that article as proposed by the 88th Legislature, 2nd Called Session, 2023, is not offset by a gain in state aid under this chapter.
(c) For the purpose of determining state aid under Subsections (a) and (b), local interest and sinking revenue for debt service is limited to revenue required to service debt eligible under this chapter as of September 1, 2015, including refunding of that debt, subject to § 46.061. The limitation imposed by § 46.034(a) does not apply for the purpose of determining state aid under this section.
(c-1) For the purpose of determining state aid under Subsections (a-1) and (b-1), local interest and sinking revenue for debt service is limited to revenue required to service debt eligible under this chapter as of September 1, 2021, including refunding of that debt, subject to § 46.061. The limitation imposed by § 46.034(a) does not apply for the purpose of determining state aid under this section.
(c-2) For the purpose of determining state aid under Subsections (a-2) and (b-2), local interest and sinking revenue for debt service is limited to revenue required to service debt eligible under this chapter as of September 1, 2023, or authorized by the voters but not yet issued as of September 1, 2023, that later becomes eligible under this chapter, including refunding of that debt, subject to § 46.061. The limitation imposed by § 46.034(a) does not apply for the purpose of determining state aid under this section.
(d) If the amount required to pay debt service eligible under this section is less than the sum of state and local assistance provided under this chapter, including the amount of additional aid provided under this section, the district may not receive aid under this section in excess of the amount that, when added to the district’s local interest and sinking revenue for debt service for the school year, as defined by this section, and state aid under Subchapters A and B, equals the amount required to pay the eligible debt service.
(e) The commissioner, using information provided by the comptroller and other information as necessary, shall compute the amount of additional state aid to which a district is entitled under this section. A determination by the commissioner under this section is final and may not be appealed.