As a recent op-ed in the Wall Street Journal reports, high-tax states continue to bleed residents and income. Between 2022 and 2023, California lost a net $11.9 billion in adjusted gross income (AGI), New York $9.9 billion, and Illinois $6 billion. Higher earners with income over $200,000 drove much of this exodus. In Massachusetts, they accounted for 70% of outflows, doubling the 2019 share.
Meanwhile, no-income-tax states saw the largest gains. Florida added $20.6 billion in AGI, Texas $5.5 billion, and Tennessee $2.8 billion. Even non-income tax states with more frigid climes saw significant inflows, including Wyoming and South Dakota. In short, states without income taxes dominated the top destinations for both people and wealth.
Missouri, with its current 4.7% top individual income tax rate, sits in the middle of the pack. While we are not a major loser like California or New York, we are far from the magnet status of Florida or Tennessee. Drawing upon IRS migration data, past Show-Me Institute reports have shown that Missouri has consistently lost more people and more income than it gained. This has been particularly the case among working-age and higher-earning households seeking better economic climates.
These national migration patterns emerge at a pivotal moment for Missouri. State lawmakers recently approved HJRs 173 and 174, a proposed constitutional amendment backed by Governor Mike Kehoe that would ask voters to authorize the gradual phaseout of the state’s individual income tax. If approved, the general assembly would begin reducing the tax as revenues grow and would have the authority to speed up the process while modernizing Missouri’s outdated sales tax code.
Eliminating the income tax would align Missouri with proven winners in the migration data, making our state far more attractive to high earners, businesses, and young professionals—key drivers of growth. Moreover, we sit right next door to Illinois, which, while losing top earners at a breakneck pace, is also ranked the least friendly state for middle-class earners according to one report.
The pattern is clear. People and capital continue to flow to states with lower tax burdens and pro-growth policies. Missouri has the chance to join those states. By modernizing our tax code now, we can shut off the outflow of the past and build a more prosperous future.
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