89th Legislature

SB 1633

Overall Vote Recommendation
No
Principle Criteria
Free Enterprise
Property Rights
Personal Responsibility
Limited Government
Individual Liberty
Digest

SB 1633 proposes to amend the Texas Tax Code by adding Section 11.325 to allow county commissioners courts to adopt an ad valorem tax exemption for a portion of a property's appraised value that results from the installation of water conservation systems. Specifically, this includes rainwater harvesting systems and graywater reuse systems, both of which are designed to promote sustainable water use. If a county adopts this exemption, it would automatically apply to all taxing units that tax the affected property.

The bill defines “graywater” by referencing Section 341.039 of the Health and Safety Code and clarifies that the exemption applies only to the value attributable to the installation of the conservation system, not the entire property. SB 1633 grants counties local authority and discretion to implement this exemption based on their regional conservation priorities and budgetary considerations. This decentralizes the decision-making process and allows for tailored solutions to water scarcity or sustainability efforts.

Importantly, the bill’s implementation is contingent upon voter approval of a corresponding constitutional amendment that would authorize such tax exemptions. If the amendment is not approved in the November 2025 election, the bill will not take effect. If passed, the measure will apply to tax years beginning on or after January 1, 2026. Overall, SB 1633 reflects a local-option, incentive-based approach to environmental policy, empowering counties and property owners to participate in water conservation initiatives without increasing their tax burden.

Author
Donna Campbell
Co-Author
Sarah Eckhardt
Royce West
Fiscal Notes

According to the Legislative Budget Board (LBB), SB 1633 would allow county commissioners courts to adopt an ad valorem tax exemption on the portion of a property's appraised value that results from the installation of rainwater harvesting or graywater systems. If adopted, this exemption would apply to all taxing units that levy property taxes on the exempted property. As such, SB 1633 could lead to reductions in taxable property values in counties that opt into the exemption program.

The LBB notes that this reduction in taxable property values could indirectly increase costs to the state, particularly through the operation of the school finance formulas. Under Texas law, a decline in local taxable value increases the state’s share of funding obligations for public education through the Foundation School Program. The magnitude of the fiscal impact, however, remains indeterminate because data on the prevalence and appraised value of existing rainwater or graywater systems is limited. Moreover, the number and identity of counties that would adopt the exemption are unknown.

At the local level, jurisdictions could respond to the exemption by adjusting tax rates. Under Section 26.04 of the Tax Code, the no-new-revenue and voter-approval tax rates could increase to compensate for the reduced tax base. If taxing entities choose not to raise rates, they could face revenue shortfalls. Conversely, raising rates could shift the tax burden to non-exempt properties, partially offsetting the revenue impact. Thus, while the bill could reduce local government levies, the actual effect would vary based on local policy decisions and voter behavior.

Overall, while the bill grants counties a tool to encourage sustainable water use, its fiscal consequences are contingent on adoption rates, the scale of eligible installations, and local tax rate responses. The absence of comprehensive valuation data on these systems prevents a precise statewide fiscal estimate at this time.

Vote Recommendation Notes

SB 1633 would authorize county commissioners' courts to adopt an exemption from ad valorem taxation on the portion of a property’s value attributed to the installation of rainwater harvesting or graywater reuse systems. While SB 1633 is framed as a permissive, locally driven tool to incentivize water conservation in response to Texas’s drought challenges, it introduces structural and philosophical concerns.

The bill continues a pattern of carving out special exemptions within the property tax code to achieve targeted policy goals. While incentivizing water-saving infrastructure may benefit some communities, SB 1633 undermines tax neutrality by shifting the burden to other taxpayers. Those who cannot afford or are unable to install such systems, renters, lower-income households, or those in urban settings, will not benefit but may still bear the fiscal consequences through higher tax rates or diminished services. This selective relief disrupts the principle of equal treatment under a uniform tax system.

From a free enterprise perspective, SB 1633 distorts the market by favoring specific technologies and investments through tax policy. By making one type of improvement eligible for property tax relief, it introduces government preference into a realm that should remain competitive and innovation-driven. This could limit the development of alternative conservation methods that are not similarly incentivized, ultimately narrowing the solution set to complex environmental challenges.

Furthermore, while SB 1633 grants counties discretion, it adds administrative complexity to local governance. Counties that choose to adopt the exemption will face new responsibilities in evaluating system installations, verifying compliance, and adjusting their appraisal and tax processes accordingly. This introduces bureaucratic burden and fiscal uncertainty at the local level, with unclear benefits or consistency statewide.

Lastly, the bill incrementally expands the government’s role in shaping private investment decisions and tax policy through targeted incentives, contrary to the principle of limited government. Rather than adopting broadly applicable, outcome-based incentives for conservation, SB 1633 prescribes a narrow, property-specific path that may yield uneven results.

In conclusion, while the environmental intent of SB 1633 is laudable, the mechanism, tax exemptions layered into the property tax code, creates economic distortions, tax inequities, and administrative complexity that outweigh the benefits. Texas Policy Research recommends that lawmakers vote NO on SB 1633. Conservation should be supported through equitable, market-neutral, and transparent policy tools that do not erode the integrity of the local tax system.

  • Individual Liberty: The bill marginally enhances individual liberty by giving property owners the opportunity to benefit from tax relief if they choose to install water conservation systems. This could be seen as empowering residents to make environmentally conscious choices without incurring higher property taxes due to the increased value of such improvements. However, this benefit is not equally accessible. Only property owners with the financial means and physical capacity to invest in these systems can take advantage of the exemption. Renters and low-income households—particularly in dense urban areas—are unlikely to benefit. Thus, the liberty enhancement is limited to a subset of individuals, creating unequal access to the benefits the policy affords.
  • Personal Responsibility: The bill aligns well with the principle of personal responsibility. It encourages individuals to take proactive, voluntary steps to reduce their reliance on municipal water systems, particularly in drought-prone regions. Rather than mandating conservation, it rewards citizens who make investments that benefit both themselves and the broader community. This aligns with a core conservative-libertarian idea: individuals, not government, should lead in solving public challenges where feasible.
  • Free Enterprise: The bill introduces a government-created market distortion. By offering targeted tax relief to certain technologies, rainwater harvesting, and graywater systems, it privileges specific industries and vendors. This creates an uneven playing field in the broader water conservation or environmental innovation marketplace. True free enterprise relies on market competition and neutrality. The bill’s carve-out selectively steers consumer behavior through the tax code, potentially stifling alternative or emerging conservation solutions that don’t receive similar incentives.
  • Private Property Rights: On one hand, the bill upholds private property rights by removing disincentives to property enhancement. Without the exemption, installing a conservation system might raise the appraised value of the property and increase taxes. The bill corrects this by allowing counties to exempt that incremental value, which respects the owner’s right to improve their property without state-imposed penalties. On the other hand, it creates special treatment for certain types of improvements, which could be seen as inequitable. Owners who make other valuable contributions, such as energy-efficient retrofits or accessibility upgrades, receive no similar relief, raising questions of fairness and neutrality in the treatment of private property enhancements.
  • Limited Government: Though the bill is permissive (counties may opt in), it nonetheless expands government authority by creating a new tax exemption class and authorizing local governments to shape behavior through fiscal incentives. Over time, this sets a precedent for more exemptions, making the tax code increasingly complex and subject to political influence. Moreover, implementation would require local administrative systems to evaluate eligibility, verify installations, and apply the exemptions, expanding the operational role of local government. While the policy may seem restrained in scope, it represents another step toward using tax policy for social engineering, a move away from the ideal of minimal and neutral governance.
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