The second measure on Missouri’s Aug. 4 primary ballot reads as if it touches every county, but in practice it is about one. Amendment 2 asks whether all charter counties, including Jackson County, must elect their county assessor, and whether assessors in those counties must meet training requirements set by state law.
Jackson County is the only county in Missouri that does not elect its assessor; it appoints one instead. Every other charter county has elected the office since 2010. The assessor is the official who determines the value of homes, land, and other property for tax purposes, so the job sits close to every property owner’s wallet even though most voters rarely think about it.
Here is what the amendment actually changes. The Missouri Constitution carves out an exception for charter counties with populations between 600,000 and 700,000; Jackson County is the only one that large, so the exception applies to it alone. Amendment 2 deletes that exception, which would require Jackson County to elect its assessor like everyone else. A second piece, added by the Senate, requires assessors in all charter counties to comply with training requirements established by state law. The measure does not change tax rates, state assessment rules, or anyone’s property bill; it changes only how the assessor is chosen and who that official answers to.
So why is one county’s hiring practice a statewide constitutional question? The answer runs through several years of turmoil in Jackson County. Property reassessments in 2019 and, especially, 2023 sent valuations soaring, in some cases by more than 600 percent, according to local reporting. Homeowners filed complaints, lawsuits followed, and the Missouri State Tax Commission found the county had violated state assessment law and ordered it to roll back and cap increases at 15 percent over 2021 values. In September 2025, voters recalled County Executive Frank White Jr. Two months later, on Nov. 4, Jackson County voters approved a local ballot question making the assessor an elected office, though turnout was low; fewer than one in ten registered voters cast ballots in the Kansas City portion of the county. Under that local change, residents would not actually elect an assessor until 2028.
The statewide vote finishes the job. Because the exception is written into the state constitution, Jackson County’s local charter change does not fully settle the matter on its own; Amendment 2 removes the carve-out at the constitutional level so the elected-assessor rule applies uniformly. The legislature referred the measure as House Joint Resolution 23, and it drew lopsided, bipartisan support: the House passed it 125 to 7, the Senate 33 to 0, and the House approved the Senate’s amended version 129 to 0. Gov. Mike Kehoe then moved it from the November general election onto the Aug. 4 primary ballot in his May 22 proclamation.
Supporters frame it as basic accountability: an assessor who answers to voters, the same arrangement every other Missouri county already has. A Park University political scientist noted that the push has crossed party lines, driven by frustration over assessments rather than partisanship.
The cautions come less from an organized campaign than from the nature of the job. Critics warn that electing a technical position, one that depends on professional expertise and adherence to state law, risks turning accurate valuation into a political contest. Jackson County’s appointed assessor, Gail McCann Beatty, has defended her office’s work as focused on correct valuation and statutory compliance, and some residents have said the office’s performance matters more than how the assessor is selected. A separate, principled objection appears in some voter guides: that the measure bundles a clean fix, repealing the carve-out, with a vaguely worded training clause that points to whatever the legislature later decides, and that voters who want clean, single-subject amendments have reason to vote no. No committee has registered to support or oppose the measure, and the state’s fiscal review finds no costs or savings to government either way.
A yes vote requires Jackson County to elect its assessor and writes the elected-assessor rule for charter counties into the constitution. A no vote leaves the current exception in place. Either way, it has no direct effect on tax rates or property bills.
Next: Amendment 4, on raising the bar for citizen-led constitutional amendments. (Amendment 3, on abortion, is set for the November ballot.)
ON THE BALLOT
Official ballot title: “Shall the Missouri Constitution be amended to: require all charter counties, including Jackson County, to provide for the election of a county assessor; and require assessors in all charter counties to comply with any training requirements established by general law?”
A YES VOTE requires all charter counties, including Jackson County, to elect their assessor, and requires those assessors to meet state training requirements.
A NO VOTE keeps the current exception that lets Jackson County appoint its assessor.
TAX IMPACT: No direct effect on tax rates or property bills. State and local governments estimate no costs or savings.
THE BACKSTORY, IN BRIEF
- Only county affected by the election change: Jackson County; every other charter county already elects its assessor.
Referred by the legislature as HJR 23; passed 125-7 (House), 33-0 (Senate), 129-0 (final House). - Jackson County voters approved a local change to an elected assessor on Nov. 4, 2025.
- A first elected Jackson County assessor would be chosen in 2028.