Missouri's Amendment 5: A Constitutional Overreach Masquerading as Tax Reform

The Facts of the Case

In a significant pre-election ruling, the Missouri Western District Court of Appeals has ordered a revision of the ballot language for Amendment 5, a proposed constitutional amendment slated for the August 4 primary ballot. The court upheld the amendment’s placement on the ballot but found the original summary written by lawmakers to be insufficiently informative for voters. The core of Amendment 5, championed by Governor Mike Kehoe as his top legislative priority, is a plan to phase out Missouri’s individual state income tax. However, the mechanism for achieving this elimination is where the controversy lies: the amendment would authorize the state legislature to expand or increase sales taxes on goods and services currently exempt, and critically, it would suspend existing constitutional limits on such taxation for a five-year window.

Furthermore, the amendment contains provisions that exempt any new taxes imposed under this authority from requirements for statewide voter approval. It also grants the state auditor new power to adjust tax rates for certain constitutionally mandated sales taxes, such as those supporting state parks and conservation. The legal challenge, led by attorney Chuck Hatfield on behalf of plaintiffs, argued the proposal improperly amended multiple articles of the state constitution. The appeals court, in a unanimous opinion written by Judge Thomas Chapman, rejected that argument, finding all provisions properly within the taxation article, though it agreed the ballot summary failed to adequately warn voters of the expansion of legislative taxing power and the suspension of constitutional limits.

The Stakes and the Players

The political battle is intensifying, with the Missouri Association of Realtors donating $1.9 million to the committee “Missourians for Fair Taxation” to oppose the measure. In support, a political action committee called “Put Missouri First,” represented by attorney Marc Ellinger, intervened in the lawsuit. The court’s revised ballot summary now explicitly links the income tax phase-out to an expanded sales tax base and the curtailment of constitutional limits. Barring a last-minute intervention by the Missouri Supreme Court, voters will be asked if they wish to grant this new authority to the General Assembly. Key individuals in this unfolding drama include Cole County Circuit Judge Christopher Limbaugh, whose initial ruling was partially upheld; State Solicitor General Louis Capozzi, who defended the original language; and the aforementioned attorneys Hatfield and Ellinger.

Opinion: A Dangerous Delegation of Power

The framing of Amendment 5 as a simple bid to eliminate the income tax is a masterclass in political misdirection, and the court’s intervention to demand clearer language is a vital victory for democratic transparency. At its heart, this amendment is not primarily about tax rates; it is about the fundamental distribution of power within a constitutional democracy. It seeks to transfer a crucial check on government authority—constitutional limits on taxation—from the people, via their founding document, to the legislature. The creation of a five-year window where lawmakers can impose sales taxes “notwithstanding” existing constitutional restrictions is an alarming proposition. It effectively creates a temporary zone of unaccountability, where the normal rules do not apply.

Proponents may argue this is necessary for flexibility and economic growth, perhaps invoking the failed “Kansas experiment” as a cautionary tale they aim to avoid. But the remedy for cumbersome processes is not their abolition; it is reform through the proper, transparent channels. The very phrase “notwithstanding” in a constitutional context should set off deafening alarm bells for anyone committed to limited government and the rule of law. It is a legislative override, a declaration that the normal constitutional order is an impediment to be bypassed. Granting the state auditor—an executive branch official—the power to adjust tax rates set by other constitutional articles further muddies the separation of powers and creates a problematic precedent.

The Principle of Informed Consent

The court’s rationale for changing the ballot language cuts to the core of the issue: “The resolution’s curtailment of constitutional limits on the taxing authority in Missouri makes it necessary for a sufficient summary statement to inform voters so that they may assess the costs and benefits.” This statement acknowledges that the cost of Amendment 5 is not merely a shift from one tax to another. The cost is a permanent alteration of the social contract, a dilution of the people’s direct control over major fiscal decisions. When attorney Chuck Hatfield argued the original language was “a political commercial” and not a legal statement, he identified the precise danger: using the ballot process not for honest deliberation but for political marketing.

True tax reform that moves toward a consumption-based model can be debated on its merits. But such a reform must be presented with crystal clarity. Voters must understand they are being asked to trade a visible, progressive income tax for a potentially regressive and vastly expandable sales tax, while simultaneously handing their legislature a master key to unlock every sales tax limitation in the constitution. The principle that major new taxes require voter approval is a bedrock of Missouri’s—and America’s—populist tradition. Amendment 5 seeks to create a major exception to that principle, all under the appealing banner of “eliminating the income tax.”

Conclusion: Guarding the Guardians

As a supporter of the U.S. Constitution, the Bill of Rights, and the foundational idea that governments derive their just powers from the consent of the governed, I view Amendment 5 with profound skepticism. It represents a form of constitutional creep, where popular but vague objectives (eliminate a tax) are used to justify sweeping increases in state power and decreases in public oversight. The fierce opposition from a group like the Missouri Association of Realtors, which has a direct economic interest in the tax climate, underscores the real-world impacts this would have.

Democracy is not just about elections; it is about the structures that constrain power between elections. The constitutional limits on taxation are such a structure. They are not mere technicalities; they are the embodiment of the people’s will that their government cannot tax them without clear, deliberative processes. Amendment 5 asks Missourians to temporarily disarm themselves of these protections. Regardless of one’s views on income versus sales taxes, the process matters. The rule of law matters. Transparency matters. The court has done its duty by demanding better information for the voters. Now, it is the duty of every Missouri citizen to look past the slogan, scrutinize the fine print, and ask: are we willing to trade a known tax system for an unknown and potentially unlimited taxing authority vested in future legislatures? The answer to that question will define the state’s commitment to fiscal liberty and accountable government for a generation.