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Missouri · Amendment 5 · Election: 2026-08-04

Constitutional Amendment to Replace State Income Tax with Sales Taxes and Modify Local Taxes

Plain-English Summary

This proposed constitutional amendment would replace Missouri's individual income tax with an expanded sales tax system. It would grant lawmakers authority to increase sales tax rates or expand the list of taxable goods and services without voter approval, while also requiring legislative action to phase out the income tax based on revenue growth. The measure also addresses the reduction of personal property and other local taxes when local revenues increase, and aims to protect local funding for public schools.

What each outcome does

IF YES PASSES

If Amendment 5 passes, the Missouri Constitution would be amended to allow lawmakers to replace the state income tax with an expanded sales tax system, giving them authority to adjust sales tax rates and scope without further voter approval. It would also mandate legislative action to phase out the income tax and modify local taxes.

IF NO PASSES

If Amendment 5 fails, the current state income tax system would remain in place, and lawmakers would not gain the authority to expand the sales tax base or increase rates without voter approval as outlined in the proposed amendment. The existing constitutional provisions regarding taxation would continue unchanged.

Who is funding each side

YES SIDE
Sponsor: Missouri Promise
Reported funding: $1,900,000 (2026-05-29)
NO SIDE
Sponsor: Missourians for Fair Taxation, No Everything Tax
Reported funding: Not yet reported

BallotPulse is non-partisan. We summarize each outcome in plain English and disclose the money on both sides. We do not tell you how to vote. Always read the official ballot text and decide for yourself.