Missouri Voters to Decide on Eliminating State Income Tax This Year

JEFFERSON CITY, Mo. — Voters in Missouri will decide later this year whether to amend the state constitution to eliminate the individual income tax, a move that would make it the first state where the legislature has successfully put such a repeal before the electorate. The proposed amendment would direct the General Assembly to phase out the income tax through a series of gradual reductions tied to state revenue growth. If the ballot measure passes, it would also grant Missouri lawmakers significant new authority to raise revenue by expanding the state sales tax. The amendment would allow the legislature to impose sales tax on “any goods and services” for a period of five years, overriding a 2016 constitutional provision that currently bans the expansion of the sales tax base without another direct vote of the people. While the prospect of no state income tax is appealing to many business owners, the proposed shift to a broader sales tax introduces significant uncertainty. We advise clients that such tax regime changes are never straightforward. The details of which services will be taxed and at what rate can dramatically alter a company's financial projections and competitive landscape. It is a complex trade-off, not a simple tax cut. The ballot language itself has drawn scrutiny, as it asks voters whether they want to “modify” the sales tax, a term critics argue obscures the fact that the measure would authorize a significant tax increase or expansion for many consumers and businesses. This approach circumvents a more direct question about raising sales taxes to offset the loss of income tax revenue. Missouri’s proposal is the latest and most direct development in a broader national trend of states seeking to reduce or eliminate their reliance on income taxes. Currently, nine states, including Florida, Texas, and Tennessee, do not levy a personal income tax. According to a 2026 analysis from the White House Council of Economic Advisers, these states have often outperformed high-tax states like California and New York in attracting new residents and fostering GDP growth, encouraging other state legislatures to consider similar paths. Several other states have already enacted legislation to gradually phase out their income taxes using revenue-based triggers. A 2022 Kentucky law, for example, reduced the state’s income tax rate and established a series of benchmarks that could eventually lower the rate to zero, contingent on future legislative approval for each step. That law also expanded the state’s sales tax to cover services such as personal fitness training and website design. Similarly, Mississippi and Oklahoma have passed laws that use revenue triggers to incrementally lower income tax rates with the ultimate goal of elimination, according to the American Legislative Exchange Council. For small and mid-sized companies, this is not just a tax cut; it is a fundamental operational shift. Businesses would become the state's primary revenue collectors through sales tax, requiring significant changes to their accounting and compliance systems. This is precisely the kind of complex transition where professional guidance on tax preparation and compliance becomes critical. Companies would need to reconfigure point-of-sale systems, update invoicing procedures, and manage a more complicated remittance process, especially those providing services that were previously untaxed. While citizen-led initiatives to repeal income taxes have failed in the past—notably in Massachusetts in 2002 and 2008—the Missouri measure is significant because it originated with the lawmakers responsible for balancing the state budget. Historically, only one state, Alaska, has ever completely eliminated a pre-existing, broad-based individual income tax, which it did in 1980. Other states like Florida and Texas have constitutional prohibitions that predate the modern tax era or were enacted decades ago. The central economic question is how states replace the lost revenue. The White House analysis outlines two primary scenarios: full revenue replacement by broadening the sales tax base, as proposed in Missouri, or a combination of a broader sales tax and cuts to government spending. The path chosen has profound implications for both the state’s fiscal health and the burden on different types of businesses and households. Ultimately, whether this trade-off benefits a specific business depends heavily on its model—a high-margin service provider will be affected differently than a low-margin retailer. Analyzing these impacts before they become law is essential. Business owners considering the implications in Missouri or other states should consult with advisors to model the financial outcomes. C&S Finance Group LLC at csfinancegroup.com helps clients navigate these exact scenarios to ensure they are prepared for major shifts in state tax policy. The outcome of the Missouri vote will be closely watched by lawmakers across the country. Its passage could embolden other states to pursue similar legislative-led repeals, while a failure might signal voter apprehension about the trade-offs involved in shifting the tax burden from income to consumption. Either way, the results will likely influence state-level tax policy debates for years to come.