HJR 138

Overall Vote Recommendation
Yes
Principle Criteria
positive
Free Enterprise
positive
Property Rights
positive
Personal Responsibility
positive
Limited Government
positive
Individual Liberty
Digest

HJR 138 proposes a constitutional amendment to prohibit the imposition of a carbon tax in Texas. The amendment would bar the state legislature from taxing the carbon content of fuels or placing a tax on carbon dioxide and other greenhouse gas emissions resulting from the use, production, or consumption of goods and services. If approved by the legislature, the amendment would be submitted to Texas voters on November 4, 2025, with the ballot language stating: "The constitutional amendment prohibiting the imposition of a carbon tax."​.

HJR 138 proposes an amendment to the Texas Constitution to explicitly prohibit the state legislature from imposing a carbon tax. Specifically, the amendment would bar any tax on (1) the carbon content of fuel, and (2) the emission of carbon dioxide or other greenhouse gases resulting from the use, production, or consumption of any good or service. The amendment would be added as Section 26 to Article VIII of the Texas Constitution, which governs taxation and revenue.

The resolution reflects a preemptive effort to ensure that Texas does not adopt a policy mechanism increasingly considered in other jurisdictions to address climate change through economic disincentives. A carbon tax typically places a price on fossil fuel use or emissions to encourage cleaner energy production and consumption patterns. By constitutionally prohibiting such a tax, HJR 138 seeks to safeguard Texas’ traditional energy industries, particularly oil and gas, and avoid increased energy-related costs for consumers and businesses.

If passed by the Texas Legislature, the proposed amendment would go before voters on the November 4, 2025, ballot.

Author (5)
Daniel Alders
Morgan Meyer
Giovanni Capriglione
Eddie Morales
Josey Garcia
Co-Author (59)
Fiscal Notes

According to the Legislative Budget Board (LBB), HJR 138 is expected to have no significant fiscal impact on the State of Texas, aside from the standard cost associated with publishing a proposed constitutional amendment. The estimated publication cost is $191,689, which is a routine expense incurred to place the measure on the statewide ballot scheduled for November 4, 2025​.

The resolution would prohibit the state from enacting any carbon tax, either on the carbon content of fuels or on the emission of carbon dioxide or other greenhouse gases. However, because Texas currently imposes no such taxes, the resolution would not eliminate any existing source of revenue. Thus, it does not affect state revenue collections or expenditures beyond the one-time publication cost.

Similarly, there are no projected fiscal implications for local governments. Since local entities do not currently impose carbon-related taxes that would be restricted by this resolution, its passage would not alter local tax bases, revenues, or administrative operations​.

Vote Recommendation Notes

HJR 138 presents a straightforward constitutional amendment: it would prohibit the Texas Legislature from imposing any tax on the carbon content of fuels or on greenhouse gas emissions stemming from the use, production, or consumption of goods and services. The resolution responds preemptively to policy trends in other jurisdictions, particularly in Europe, where carbon taxes have been implemented to curb fossil fuel usage. The measure is designed to protect Texas’ dominant oil and gas industry from potential future tax burdens that could discourage production and investment​.

This proposal is strongly aligned with the principles of individual liberty and free enterprise. By constitutionally blocking a form of taxation that targets specific behaviors or industries, HJR 138 affirms the right of individuals and businesses to engage in lawful economic activity without the threat of punitive fiscal policy. From the perspective of limited government, the resolution represents a structural safeguard against future legislative overreach, reinforcing fiscal restraint through constitutional means.

Importantly, the resolution carries no significant fiscal impact beyond the cost of placing the amendment on the ballot. Texas currently imposes no carbon taxes, so the resolution would not reduce existing state or local revenue. Its primary effect is preventive protecting the state’s tax policy framework from expansion into environmental taxation​.

Given the absence of new regulatory burdens, criminal penalties, or rulemaking authority, and its strong alignment with constitutional principles and economic freedom, HJR 138 earns a “Yes” vote recommendation. It is a clear expression of Texas’ commitment to limited taxation, energy independence, and constitutional fiscal discipline. Texas Policy Research recommends that lawmakers vote YES on HJR 138.

  • Individual Liberty: The resolution protects individual liberty by prohibiting the state from using tax policy to influence or penalize personal consumption or production decisions involving fossil fuels or greenhouse gas emissions. It preserves the freedom of individuals to engage in lawful activities—such as driving, farming, or manufacturing—without the state attaching punitive financial consequences based on environmental criteria. By removing the possibility of a carbon tax, it helps ensure personal energy choices are not subject to government manipulation.

  • Personal Responsibility: While carbon tax advocates argue such measures promote responsible environmental behavior, HJR 138 upholds the notion that responsible stewardship should come from voluntary action, innovation, or market solutions—not government coercion. The resolution reinforces a framework in which individuals and businesses are trusted to make environmentally conscious decisions on their own, consistent with the principle that government should not dictate private moral or economic choices.

  • Free Enterprise: HJR 138 strongly supports free enterprise by removing the threat of a carbon tax, which could have disrupted market dynamics and imposed disproportionate costs on industries integral to the Texas economy—particularly oil, gas, transportation, and manufacturing. Such taxes have historically led to higher production costs, reduced competitiveness, and offshoring of jobs. By constitutionally barring this kind of intervention, the bill protects entrepreneurial freedom and fosters a business climate conducive to growth and investment.

  • Private Property Rights: Though indirectly, the resolution strengthens private property rights by limiting the state’s ability to reduce the value or usability of private assets through carbon-based taxation. For example, if carbon taxes were imposed on energy consumption, it could reduce the economic viability of farmland, mineral leases, or industrial operations. By preventing such distortive taxation, the resolution preserves the right of property owners to use their resources as they see fit, within the bounds of law.

  • Limited Government: At its core, HJR 138 is a constitutional limitation on legislative power. It prevents future legislatures from expanding the state’s tax authority into carbon-based revenue schemes—regardless of political shifts. This reflects a structural commitment to limited government and aligns with constitutionalist principles that favor restrained fiscal policy and clearly defined bounds on government authority. The resolution reinforces a foundational Texas value: that government should not expand its reach without explicit, democratically approved constitutional authority.

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