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2025 · Regular session · Senate bill
SB4
SB4 raises the general school-district residence-homestead exemption from $100,000 to $140,000, removing another $40,000 of qualifying home value from the school tax calculation.
Official caption: Relating to an increase in the amount of the exemption of residence homesteads from ad valorem taxation by a school district and the protection of school districts against certain losses in local revenue.
Official report lists Senate author(s): Bettencourt, Alvarado, Birdwell, Blanco, Campbell, et al.. This does not identify sponsors or amendment drafters.
Bill explanation published · Version and amendment review scope is stated below · Individual amendment records may not be separately annotated.
Bill highlights
Selected points from the published explanation. Follow each point to its source-linked context; conditions and limits may matter.
- SB4 raises the general school-district residence-homestead exemption from $100,000 to $140,000, removing another $40,000 of qualifying home value from the school tax calculation.
- The increase applies starting with tax year 2025, subject to voter approval of SJR2.
- The act also protects school funding.
- For certain districts that received a 2022–23 school-finance adjustment, SB4 revises continuing aid for losses from the 2023 tax-rate compression: it compares current revenue with what would have been available without that reduction.
- Transition rules let appraisers and school tax officials prepare 2025 rolls, tax rates and provisional bills assuming the exemption increase, then reconcile them to the election result.
What does it do?
SB4 raises the general school-district residence-homestead exemption from $100,000 to $140,000, removing another $40,000 of qualifying home value from the school tax calculation. It is a reduction in taxable value, not a $40,000 payment or tax credit. It does not by itself increase city, county or other taxing units’ exemptions, and it is not the separate elderly/disabled exemption increase.
The increase applies starting with tax year 2025, subject to voter approval of SJR2. That condition was met: the governor’s November 19, 2025 official canvass proclamation records adoption of Proposition 13, the $140,000 exemption amendment. SJR2’s temporary provision applies it to the tax year beginning January 1, 2025. SB4 was signed June 16, 2025; its noncontingent provisions took effect immediately, while Article 1 depended on the constitutional amendment’s adoption.
The act also protects school funding. Beginning with 2025–26, it provides additional state aid for specified operating-revenue losses and eligible debt-service losses from the increased exemption, subject to the statutory formulas. The debt-service calculation covers eligible debt as of September 1, 2025, including qualifying refundings. It reduces excess additional aid when combined aid and debt-tax revenue exceed required bond payments, but preserves the new exemption-related aid floor. Debt-service aid may be used only for principal and interest on the bonds for which it was received.
For certain districts that received a 2022–23 school-finance adjustment, SB4 revises continuing aid for losses from the 2023 tax-rate compression: it compares current revenue with what would have been available without that reduction. This is a separate school-funding provision, not another homeowner exemption.
Transition rules let appraisers and school tax officials prepare 2025 rolls, tax rates and provisional bills assuming the exemption increase, then reconcile them to the election result. Approval makes those provisional bills final unless another correction is required. The fallback supplemental bills for rejection were conditional safeguards, not an additional charge triggered by approval. Eligible districts facing their first school-revenue-sharing election could obtain a delay and special election/payment dates; failure to hold or win the required election could lead to property detachment/annexation or district consolidation. These are targeted transition rules, not repeal of school-revenue sharing. Sources: full enacted law and history and effective-date remarks.
What changed along the way?
The introduced bill and Senate committee report match in operative text. They already proposed $140,000, but would have consolidated school aid and repealed two existing aid provisions. Those proposed repeals did not survive.
Both Senate floor amendments were adopted February 13. Bettencourt amendment F1 restricted debt aid to the relevant bonds, revised the 2025 rate-calculation fallback, expanded the compression-aid transition and replaced the supplemental-roll approach with provisional appraisal rolls. Amendment F2 preserved the existing aid provisions instead of repealing them, separated the new exemption protection, moved debt-aid reductions into the amendment-contingent article and protected the new aid floor rather than permitting reductions to zero.
The Senate-passed text and House committee report match. The House adopted Meyer’s amendment 1, changing the eligible-debt cutoff from January 1 to September 1, 2025, and making the revised compression aid continue each year beginning with 2023–24 instead of limiting it to two years. The House tabled Olcott and colleagues’ amendment 2, which proposed a $160,000 exemption. That larger amount is not enacted SB4.
The amendment index lists these four amendments. The House passed the amended bill 143–0, with one present not voting; the Senate concurred 31–0. There was no conference version. Official version index.
4 official amendment records captured. The index records proposals and outcomes; read the source-checked explanation above for reviewed effects. The offering legislator is not necessarily the drafter.
S 2 #F1 · Adopted
2/13/2025 · Offered by Bettencourt · Amendment.
Item-by-item effect and final-law survival are not annotated here. Read the source-checked version comparison above when available; adoption alone does not establish final wording.
S 2 #F2 · Adopted
2/13/2025 · Offered by Bettencourt · Amendment.
Item-by-item effect and final-law survival are not annotated here. Read the source-checked version comparison above when available; adoption alone does not establish final wording.
H 2 #1 · Adopted
5/20/2025 · Offered by Meyer · Amendment.
Item-by-item effect and final-law survival are not annotated here. Read the source-checked version comparison above when available; adoption alone does not establish final wording.
H 2 #2 · Tabled
5/20/2025 · Offered by Olcott | et al. · Amendment.
Item-by-item effect and final-law survival are not annotated here. Read the source-checked version comparison above when available; adoption alone does not establish final wording.
Official bill versions
Compare the published text versions in the official text index. A change is not attributed to a specific amendment here without a verified record.
Who could benefit—and who could bear the costs?
Qualifying homeowners benefit directly; renters and owners of non-homestead property do not receive this exemption directly. As a simple illustration, if the full extra $40,000 of exemption applies and the school tax rate is $1 per $100 of value, it reduces that school’s tax by $400. Actual savings depend on taxable value, rates, existing exemptions and tax ceilings; it does not guarantee that the total bill falls by $400 or that rising values and other taxes cannot offset savings.
School districts receive formula-based state support for specified revenue losses, shifting costs toward the state rather than simply leaving schools to absorb the full exemption. The final-version May 21 fiscal note estimates $2.743 billion in net general-revenue-related costs for fiscal 2026–27, including administration. It also identifies potentially significant additional debt-service aid costs that cannot be estimated because data on debt eligible by September 1, 2025 were insufficient. The headline estimate is therefore not a complete maximum cost. SB4 itself does not appropriate money.
The note projects school property-tax levy reductions of about $1.482 billion in fiscal 2026 and $1.613 billion in 2027. Its state school-finance cost already includes reduced recapture payments—about $337 million and $410 million respectively—so those amounts should not be added again to the state-cost total. State aid, district tax losses and household savings are related but different measures.
The introduced fiscal note estimated only $1.036 billion net for the biennium because it assumed savings from aid changes later removed. The Senate-passed note had the $2.743 billion estimate; the final note added the uncertainty associated with the later debt cutoff. The trade-off is larger homeowner relief and protected school revenues against ongoing state-budget obligations.
Official sources
- Bill history and latest recorded action
- Bill versions, analyses and fiscal notes
- Action history and votes
- Amendment index
Catalog report retrieved 2026-10-25. Check the official record for corrections or later changes.