Missouri Rental Property Taxes: the 19% Rule and the Jackson County Fight
Program and regulatory figures verified September 10, 2026. Details change; confirm your scenario with us.
Missouri property tax has a mechanic most states do not, and a live controversy no investor in Kansas City can ignore. Understand the 19% assessment rule and the Jackson County reassessment fight before you write the offer: together they decide the tax line inside your PITIA, and therefore your ratio.
The 19% rule: how Missouri assesses a rental
This is the most important mechanic to understand about Missouri property tax. The state does not levy tax on a rental's full market value. Under RSMo 137.115 and the Missouri Constitution, residential real estate is assessed at 19% of market value, while commercial property is assessed at 32% and agricultural at a productive-use value. So a $300,000 rental has an assessed value of $57,000, and the local levy, quoted in dollars per $100 of assessed value, applies to that $57,000, not to the $300,000. The number that falls out is the effective rate, and it varies by county. Statewide it averages about 0.97%, a touch below the national average near 1.10%, but the average hides real spread, which is the next section. The Missouri State Tax Commission publishes the framework.
Underwrite the county, not the state
The 0.97% statewide figure is a starting point, not your number. The two investor metros both run above it. Jackson County (Kansas City) runs about 1.11% effective, with a median bill near $2,797. St. Louis County runs about 1.20%, with a median near $3,420. Greene County (Springfield) sits nearer the statewide average. That spread matters inside PITIA: on a $190,000 Kansas City rental the tax line is roughly $176 a month, and because the DSCR is decided at the margin, getting the county rate right is the difference between a ratio that clears and one that does not. We underwrite the actual county effective rate against the property's assessed value, not a statewide average a marketing page quoted.
The Jackson County reassessment fight (a live corrective)
If you are buying anywhere in Kansas City proper, this is the section that matters most, and most of what you will read about it online is already out of date. The Jackson County 2023 reassessment raised residential values about 30% on average, with more than 90% of parcels rising and roughly 75% jumping by 15% or more. The Missouri State Tax Commission, joined by the Attorney General, sued, and in August 2024 the Commission ordered the County to cap the 2023 increases at 15% for any parcel not physically inspected. The County resisted. A class action covering roughly 200,000 owners is working toward a certification hearing set for January 23, 2026. Then the pivotal turn: on December 30, 2025 the Missouri Court of Appeals (Western District) sided with the State, reversed the trial court, and remanded the case, leaving the rollback and refund question unresolved into 2026. For an investor the takeaway is concrete: in Jackson County, the current assessed value is not a stable underwriting input. We underwrite a conservative tax line, budget for an appeal, and treat any assumption that today's bill is permanent as a mistake.
A note for Kansas City: the state line changes the tax
The 19% rule is a Missouri rule. Across the state line in Kansas, Wyandotte and Johnson counties assess residential property at 11.5% under a different constitution, with different levies. So a Kansas City metro investor cannot carry a Missouri-side tax assumption across the line, the assessment ratio itself is different. This site underwrites the Missouri side; the bi-state detail is in the Kansas City guide.
Appealing your assessment
Missouri gives every owner, investors included, a path to challenge an over-assessment, and in Jackson County right now that path is worth knowing cold. You start with an informal review, then file a formal appeal with the county Board of Equalization; if that does not resolve it, the next step is the Missouri State Tax Commission, and from there the courts. Bring your closing statement, an appraisal or broker price opinion, rent rolls, and comparable sales. A well-documented appeal on a property you just bought below the assessed value is among the stronger cases a Board of Equalization sees. Because Missouri sets the assessed value at 19% of market value, lowering the market value the assessor used lowers your assessed value and your bill proportionally. Do not forget Missouri's personal-property tax either, the annual car tax that surprises out-of-state investors, though for a single-family rental the real-estate levy is the number that drives your ratio. The portfolio angle is in scaling your portfolio.
No pressure, no obligation, and no salesy follow-up: a 20-minute call with our team, real numbers, and a straight answer on whether the deal pencils.
Frequently asked questions
How does Missouri assess property tax on a rental?
Missouri assesses residential real estate at 19% of market value (RSMo 137.115 and the Missouri Constitution), with commercial at 32%. So a $300,000 rental is assessed at $57,000, and the local levy in dollars per $100 of assessed value applies to that figure. The effective rate that results averages about 0.97% statewide but runs higher by county, so you underwrite the county rate, not the state average.
What is going on with Jackson County property taxes?
The 2023 reassessment raised Jackson County residential values about 30%, with more than 90% of parcels rising. The Missouri State Tax Commission ordered the increases capped at 15% without a physical inspection, litigation followed, and on December 30, 2025 the Missouri Court of Appeals sided with the State and remanded the case. Rollbacks and refunds are unresolved into 2026, so an investor should underwrite a conservative Kansas City tax line and budget for an appeal.
Why do St. Louis County property taxes seem high?
St. Louis County runs about 1.20% effective, with a median bill near $3,420, above the statewide 0.97% average and above Jackson County's roughly 1.11%. On St. Louis's low basis the dollar bill is still moderate, but the rate is real, so we underwrite the county number inside PITIA rather than the cheap purchase price lulling you into a low tax assumption.
Can I appeal the assessed value on my Missouri rental?
Yes. Start with an informal review, then file with the county Board of Equalization, and if needed take it to the Missouri State Tax Commission and then the courts. Closing statements, appraisals, rent rolls, and comparable sales are effective evidence, and a recent below-assessment purchase is a strong case. Because Missouri assesses residential at 19% of market value, lowering the market value the assessor used lowers your bill proportionally.
Mike Certo · NMLS #260555 · Cornerstone First Mortgage NMLS #173855 · Equal Housing Lender. Educational content, not a loan commitment and not legal or tax advice. City short-term-rental rules, tax figures, and the Jackson County reassessment litigation change; confirm current requirements with the county, your CPA, or a Missouri real estate attorney before you buy. Loans are subject to buyer and property qualification.