Will Missouri voters approve Amendment 5 to phase out the state income tax on August 4?
100% of users predicted YES — the community missed this one. 2 predictions cast.
Missouri voters rejected Amendment 5 in the Aug. 4, 2026 election, decisively voting down a measure that would have set the state on a path to phase out its individual income tax. With most precincts reporting, the amendment failed by a lopsided margin, roughly 82% to 83% "no" versus about 16% to 18% "yes," according to results reported by outlets including KCTV5 and the Missouri Independent.
Amendment 5 would have authorized the Legislature to phase out the individual income tax over time while giving lawmakers five years to offset the lost revenue by raising or expanding sales and use taxes. Republican Gov. Mike Kehoe was a leading proponent, arguing the change would boost Missouri's economic competitiveness and lower living costs; opponents countered that shifting the tax burden onto sales taxes would raise everyday costs, particularly for lower- and fixed-income residents. That opposition argument prevailed by a wide margin at the ballot box.
Predict Six's community was unanimous in predicting passage, with 100% of two votes forecasting a Yes outcome; the actual result was a lopsided rejection, missing the actual outcome.