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Read. Follow. Verify.Missouri Senate Bill 1203 modifies property tax calculation caps, adjusts income tax rates, and increases the standard deduction
Last action · January 27, 2026: Second Read and Referred S Economic and Workforce Development CommitteeSponsor: Adam Schnelting
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What This Bill Would Do
Senate Bill 1203 reduces the property tax inflationary assessment growth cap to the lesser of the consumer price index or 3% beginning in 2027, adds a $4,000 state standard deduction starting in 2027, and repeals the Working Family Tax Credit Act. The measure also sets real property ballot measures to display tax impacts per $100,000 of market value and updates personal property assessment percentages.
Property owners will see slower assessment growth caps for tax levies, taxpayers will qualify for an increased standard deduction starting in 2027, and local governments must adjust ballot language to reflect property tax changes in terms of dollars per $100,000 of market valuation.
Who It Would Affect
Groups the bill's text would affect if enacted, as described in the record. Being affected is not a position for or against it.
Property Owners
Property assessment growth caps and ballot measure descriptions for real property taxes are modified.
School Districts
Tax rate levy calculations, state aid formulas, and revenue apportionments are altered by the revised assessment growth factors.
National Guard and Reserve Members
State active duty and state emergency duty compensation become eligible for state income tax deductions starting in 2027.
Key Facts
You don't have to trust us. Each fact below is taken straight from the official document - click any one to see the exact passage, highlighted in the original.
Frequently Asked Questions
How will property tax ballot measures change under this bill?
Does the bill change the standard deduction for state income taxes?
What else do you want to know?
News Coverage
Check Your Understanding
1.According to version 4343S.01I of the bill, how must any ballot measure seeking to add, change, or modify a real property tax express the effect of the proposed change within the ballot language?
Follow the record
Votes, people, money & the original sourceWhere This Stands
Currently in committee. The next step in the legislative lifecycle is Floor Vote.
Procedural history
3 actions- Jan 27, 2026SenateFloorSecond Read and Referred S Economic and Workforce Development Committee
- Jan 7, 2026SenateIntroducedS First Read
- Dec 1, 2025SenatePrefiled
Version history
Only one version on file - nothing to compare yet. The text on record is the 4343S.01I - Introduced version. As later stages (committee substitute, engrossed, enrolled) are captured, the redline appears here.
View official text →Lobbying Activity
No state lobbying filings in our records match this bill. Federal lobbying reports (LDA) cover Congress, so they are not listed on state bills.
Full breakdown
Who this bill affects and the strongest case for and against it, written only from the bill’s own text.
Sponsors
Discoveries
Patterns POLISCOPE noticed across the record. These are observations to investigate, not conclusions.
Property Tax Inflationary Cap Reduction
The state lowers its long-standing 5% inflationary growth cap on property tax assessments to 3% beginning in 2027.
Connected Entities
Sources
www.senate.mo.gov
Analysis Score
0–100- Significance85How much this matters to a regular citizen
- Controversy60Intensity of disagreement among stakeholders
- Entertainment10Compellingness for a non-policy-wonk reader
- Buzz50Current news / social attention level
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