No Everything Tax

Missouri's primary election on August 4 includes major ballot measures on income tax and initiative petitions, with ballot measure campaigns raising nearly $40 million and spending $26.7 million. State Senate races have raised $18 million and spent $13.6 million, while the state auditor race remains low-key with under $211,411 in total spending. Missouri Promise PAC, opposing a state income tax, has spent $6.4 million on broadcast ads for Amendment 5.

Missouri's political fundraising in 2023 is dominated by ballot measure campaigns for four constitutional amendments on the August 4 primary ballot, with over $27 million raised. Amendments 4 and 5 have attracted the most funding, with Amendment 4 opponents raising $6 million and $5.3 million respectively, while Amendment 5 supporters have raised $12.7 million.

A Missouri proposal to replace the state individual income tax with expanded sales taxes will appear on the Aug. 4 ballot as Amendment 5, according to a Cole County judge's ruling. Opponents challenged the measure, arguing it violates constitutional requirements, but the judge dismissed these claims, allowing the initiative to proceed.