Institute on Taxation and Economic Policy (ITEP)

Missouri

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State Earned Income Tax Credits Will Support Families and Workers in 2027

• By Neva Butkus

Nearly two-thirds of states (plus the District of Columbia and Puerto Rico) have an Earned Income Tax Credit. These credits boost low-paid workers’ incomes and offset some of the taxes they pay, helping working class families achieve greater economic security.

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State Rundown 8/13: Income Tax Elimination Fails in Missouri

• By ITEP Staff

In a win for Missouri workers and families, voters overwhelmingly rejected a proposed amendment that would have allowed lawmakers to replace the state's income tax with increased or expanded sales taxes.

St. Louis Post-Dispatch: After Missouri Voters Reject Income Tax Plan, Governor Says He’ll Still Work to Cut Taxes

August 7, 2026

Voters overwhelmingly rejected a proposed constitutional amendment Tuesday that would have triggered the phase-out of the state’s income tax by giving lawmakers the ability to raise sales and services taxes.

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Missouri Voters Reject Amendment 5 and a Damaging Tax Shift onto Working Families

• By Eli Byerly-Duke, Jon Whiten

Yesterday Missouri voters rejected Amendment 5, declining to give lawmakers a blank check to raise or expand sales taxes, something some lawmakers sought to enable enormous income tax cuts for the state’s wealthiest households.

CBS Missouri: What would eliminating income tax mean for Missourians?

July 30, 2026

"The state isn't going to raise any money, but that doesn't mean it's going to be net neutral for each person," Eli Byerly-Duke, a state policy analyst at the Institute on Taxation and Economic Policy, said.

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State Rundown 7/29: The Misguided, Miserly Missouri Amendment to Eliminate the Income Tax

• By ITEP Staff

Missouri voters are facing a major decision at the ballot box next week on Amendment 5, which would amend the state constitution to allow lawmakers to eliminate the individual income tax and expand the state’s sales tax on any good or service to make up for lost revenue.

Center on Budget and Policy Priorities: Missouri Tax Amendment Likely to Seriously Harm Services, Shift Taxes Onto Working Families

• By ITEP Staff

In early August, Missouri voters will decide one of the most consequential state tax policy questions in recent memory: whether to eliminate their state’s personal income tax.

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Missouri’s Amendment 5 Would Cut Taxes for the Rich and Raise Taxes on Seniors and the Middle Class

• By Eli Byerly-Duke

On August 4, Missouri voters will vote on whether to increase taxes on the middle class and seniors to fund tax cuts for the richest households in the state.

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State-by-State Tax Expenditure Reports

• By ITEP Staff

Below is a list of tax expenditure reports published in the states.