Missouri Income Tax Elimination Bill Returns to House After Senate Amendment

JEFFERSON CITY, Mo. — A landmark proposal to eliminate Missouri's individual income tax was sent back to the House of Representatives early Thursday morning after the state Senate passed an amended version of the legislation. The Senate vote, which concluded after midnight on April 16, marks a critical step for House Joint Resolutions 173 and 174, a top priority for Governor Mike Kehoe and Republican legislative leaders. The proposed constitutional amendment would phase out the state's income tax by 2032 and empower the legislature to replace the lost revenue by expanding the sales and use tax to cover a wider range of goods and services not currently taxed. If the House approves the Senate's changes, the measure will be placed on the ballot for Missouri voters to decide, potentially as soon as the November 2026 election. While the prospect of eliminating state income tax is appealing on the surface, this proposal represents a fundamental tax shift, not a simple tax cut. For Missouri business owners, the devil is in the details of the expanded sales tax. Many service-based businesses—from consulting and legal firms to IT support and marketing agencies—that currently do not collect sales tax could suddenly be responsible for remitting it on all their transactions. This introduces a significant new layer of administrative burden and compliance risk. In our experience, navigating changes in state tax law is one of the most complex challenges for small and mid-sized companies. A shift of this magnitude would require businesses to immediately reconfigure their accounting systems, invoicing procedures, and financial reporting. The transition is fraught with potential for error, which can lead to costly penalties. Understanding these new obligations is paramount. C&S Finance Group LLC provides expert tax preparation and compliance services to help businesses manage precisely these kinds of regulatory transitions. Business owners can learn more about preparing for potential changes at csfinancegroup.com. The legislation's journey to this point has been swift during the 2026 session. The Missouri House initially passed the resolutions on March 12 with a 98-54 vote that fell largely along party lines. According to records from the House vote, only one Democrat supported the measure, while just four Republicans opposed it. From there, it advanced to the Senate, where Republican leadership had also declared it a major goal for the session. Proponents, such as Rep. John Martin, R-Columbia, have championed the bill as a way to give Missourians more take-home pay and greater control over how they spend their money. Governor Kehoe has been a vocal supporter, making the income tax elimination a central theme of his legislative agenda. The bill's sponsor, Rep. Bishop Davidson, R-Republic, has stated that the plan includes revenue-neutral guardrails to ensure the state's budget remains stable during the transition. The mechanism for the phase-out is tied directly to state revenue growth. Under the proposal, the top income tax rate would be reduced by 0.01 percentage points for every $20 million in general revenue collected above a baseline of $13.43 billion. This incremental approach is designed to slowly wean the state off its reliance on income tax revenue. If the amendment is ultimately approved by voters, the General Assembly would have a three-year window to decide which currently untaxed goods and services would become subject to the sales tax. This has become a point of contention, as critics and Democratic leaders have expressed strong misgivings. Opponents argue that replacing a progressive income tax—where higher earners pay a higher rate—with a broader sales tax would disproportionately affect lower and middle-income families, who spend a larger percentage of their income on goods and services. Details of the specific amendment added by the Senate were not immediately available, but its inclusion necessitates that the bill returns to its chamber of origin for concurrence. The House must now vote on whether to accept the Senate's version of the legislation or reject it. The bill now awaits a final vote in the Missouri House. Should the representatives approve the amended version, the question of whether to fundamentally reshape Missouri's tax structure will be left to the state's voters in the next general election.