Missouri Legislature Adjourns 2026 Session, Sends Income Tax Elimination Proposal to Voters

JEFFERSON CITY, Mo. — The Missouri General Assembly concluded its 2026 legislative session on Friday, passing a landmark proposal to let voters decide on eliminating the state's income tax. The session's end marked a significant shift in tone from recent years, with lawmakers from both parties noting a decrease in the public infighting and procedural gridlock that had previously stalled key priorities. The session, which adjourned May 15, was described by legislators as more productive and a return to normalcy compared to the turbulent sessions of 2023, 2024, and 2025, which were characterized by factional warfare, a 41-hour filibuster, and rare procedural maneuvers to shut down debate. House Majority Leader Alex Riley, a Republican from Springfield, told the Missouri Independent it was the first time in his six years in office that a faction wasn't “ready to burn the whole place down” in the final week. While the prospect of eliminating the state income tax is appealing on the surface, the proposed shift to a broader sales tax creates significant uncertainty for Missouri businesses. In our experience, such fundamental changes to a state's tax code introduce complex compliance challenges. Businesses that have never collected sales tax, particularly those in the service sector, could suddenly be required to implement new systems for charging, collecting, and remitting these taxes. This isn't a simple switch; it involves reconfiguring accounting systems, retraining staff, and understanding new nexus rules. The ambiguity of which services would be taxed leaves companies unable to plan effectively, potentially impacting everything from pricing strategy to long-term financial forecasting. Navigating this landscape requires proactive guidance. C&S Finance Group LLC specializes in tax preparation and compliance, helping businesses adapt to precisely these kinds of regulatory shifts. Business owners can contact C&S Finance Group LLC at csfinancegroup.com to assess their potential exposure and prepare for what's next. The centerpiece of the Republican agenda was the passage of a constitutional amendment that will now appear on a future ballot. The measure, a top priority for Gov. Mike Kehoe, does not eliminate the income tax outright. Instead, it asks voters to grant the General Assembly the authority to do so and to replace the lost revenue by expanding the list of goods and services subject to sales tax. Proponents argue this would make Missouri more economically competitive with states that have no income tax. Treasurer Vivek Luetkemeyer called the potential change the “largest middle-class income tax cut in our state’s history,” according to the Columbia Missourian. Critics, however, have raised concerns that the vague language of the proposal could lead to significant sales tax increases on a wide array of currently untaxed items and services. The specific tax rates and the scope of the new sales tax base would be left for a future legislature to decide, creating a period of prolonged uncertainty for both consumers and businesses. The shift could disproportionately affect lower-income families, who spend a larger percentage of their income on goods and services, while also creating new tax burdens for service-based industries. Despite the relative calm and the major win on the tax proposal, the session was not without its failures. A bipartisan push for property tax reform, which leaders in both chambers had identified as a top priority, collapsed in the final hours of the session. According to KY3, lawmakers were unable to reach an agreement after extensive behind-the-scenes negotiations. “It came down to the last few days, literally down to the last hour, and we just couldn’t come to an agreement,” said State Rep. Tim Taylor, a Republican from Bunceton. Proposals for property tax relief will now have to be reintroduced and start from scratch in the next legislative session. Even with some stalled priorities, Gov. Kehoe celebrated the session’s outcomes. “I think we can agree that this session was productive and resulted in monumental wins for many Missourians,” Kehoe told reporters. Democrats, while opposing much of the GOP’s agenda, acknowledged the improved legislative process. State Sen. Stephen Webber, a Democrat from Columbia, told The Pitch KC that the session was “a lot better than last year” and more typical of his earlier years in the legislature. With the legislative session now closed, attention will turn to the statewide campaign over the income tax constitutional amendment. The outcome of that vote will shape the tax policy debates in Jefferson City for years to come and determine whether Missouri proceeds with a fundamental restructuring of its revenue system. Meanwhile, lawmakers are expected to renew their efforts to pass property tax relief when they reconvene for the next session.