Missouri Primary: Voters to Decide on Major Tax Cuts

As Missourians prepare to head to the polls this Tuesday, August 4, 2026, the stakes extend far beyond the names on the ballot. While various local and congressional primary races are in play, four critical constitutional amendments offer voters a direct hand in shaping the future of the Show-Me State. From historic tax relief to significant reforms in how the state constitution is amended, the results of this primary will define Missouri’s trajectory for a generation.

Polls across the state, from Jefferson County to the Ozarks, will be open from 6:00 a.m. to 7:00 p.m. local time. State officials are urging citizens to review the ballot language carefully, as these measures touch on the core pillars of the America First agenda: economic liberty, local accountability, and election integrity.

The Fight for Economic Liberty: Amendment 5

The most high-profile measure on the ballot is Amendment 5, which seeks to set Missouri on a path toward eliminating the state individual income tax. If approved, the amendment would mandate the General Assembly to phase out the tax gradually, with the pace of reductions tied directly to state revenue growth. This "trigger" mechanism ensures that the state’s essential services remain funded while systematically returning more hard-earned money to Missouri families.

Supporters of the measure argue that Missouri must become more competitive as neighboring states like Tennessee and Florida continue to attract residents with zero-income-tax policies. The economic implications are substantial; by shifting the tax burden away from production and toward consumption, advocates believe Missouri can trigger an explosion in job creation and capital investment. The amendment also includes protections to ensure that as the income tax disappears, local school funding remains prioritized.

Protecting Rural Voices: Amendment 4

Election integrity and the protection of the state constitution are at the heart of Amendment 4. Currently, a simple statewide majority can alter the Missouri Constitution through an initiative petition. Critics argue this allows well-funded special interest groups to target urban centers like St. Louis and Kansas City to pass radical policies that the rest of the state opposes.

Amendment 4 would change the rules of the game by requiring a majority vote in each of Missouri’s eight congressional districts for any citizen-led constitutional amendment to pass. This "concurrent majority" system ensures that a proposed change has broad, geographically diverse support across the entire state. Furthermore, the amendment takes a hard line against outside influence by explicitly banning foreign nationals and foreign adversaries from spending money to influence Missouri ballot measures.

Accountability in Property Tax: Amendment 2

For residents in the Kansas City area, Amendment 2 represents a long-awaited victory for transparency. The measure would force all charter counties—specifically targeting Jackson County—to transition the office of the County Assessor from an appointed position to an elected one.

This move comes in the wake of the 2023 property tax crisis, where thousands of homeowners saw their assessments skyrocket, leading to widespread frustration with unelected bureaucrats making life-altering financial decisions. By making the assessor an elected official, Amendment 2 ensures that the person responsible for valuing your home is directly accountable to the voters at the ballot box.

Conservation and Community: Amendment 1

Finally, voters will decide on Amendment 1, a renewal of the state’s long-standing 0.1% sales and use tax dedicated to soil and water conservation and state parks. Unlike the other measures, this is a continuation of an existing tax that has been renewed by voters every decade since the 1980s. The funds are used to maintain Missouri's award-winning state park system and assist farmers in implementing conservation practices that protect the state's agricultural heritage.

Why This Matters

These four amendments represent a fundamental choice about the role of government in Missouri. By voting "Yes" on these measures, Missourians are choosing to limit the power of the state to tax their income, ensuring that rural communities have a veto over radical constitutional changes, and demanding that local taxing authorities answer to the people. This primary is not just an election; it is a referendum on the conservative, self-governing values that make Missouri strong.

For more information on polling locations and to view a sample ballot, visit the Election Center or check with your local county clerk’s office before Tuesday morning.