Missouri property tax estimator
Estimate the tax bill before the reassessment surprise.
Use this as a planning estimate, then keep the Missouri State Tax Commission ratio guidance and your county bill nearby. The local levy is the part most likely to change by parcel.
Short answer
Missouri property tax turns on value, class, and local levy.
The big Missouri watch items are odd-year reassessment, local levies, special districts, and whether the parcel's market value changed.
Estimator
Missouri property tax math
Assessed value
$57,000
Estimated annual tax
Enter a levy
Add the levy above to finish this estimate.
Monthly escrow equivalent
Enter a levy
Effective rate on market value
Enter a levy
Missouri property tax starts with value, class, and local levy.
The bigger surprise is usually an odd-year reassessment, a changed levy, a special district, or a different parcel-specific value. The formula is 300,000 times the class ratio, then the levy per $100.
Step 1
Find the assessor's value.
For real property, Missouri assessors value property as of January 1 in odd-numbered years. A sale price can help, but the assessor's value controls the bill. Productive agricultural land can use a soil-based productive value instead of an ordinary market-value estimate.
Step 2
Apply the class ratio.
Residential real estate uses 19%, agricultural real estate 12%, and commercial real estate 32%. Personal property belongs in the separate personal-property estimator because its categories vary.
Step 3
Use the local levy.
Missouri levies are often shown per $100 assessed value. School, county, city, fire, library, and special districts can all be in the stack.
The formula
Take the assessor's value for the class. Multiply by the assessment ratio. Then apply the local levy per $100 of assessed value. That is why a $300,000 residential home with a 19% ratio has a $57,000 assessed value before the levy is applied.
The most important local number is the levy. Two similar homes can have different bills if they sit in different school districts, fire districts, library districts, cities, or special taxing areas.
What buyers should not assume
Do not assume the seller's bill is your long-term bill. A reassessment cycle, changed levy, or changed parcel-specific value can change the amount your lender collects through escrow.
Next step: get the county's current value, the levy for the exact parcel, and the next reassessment timing. Then use this calculator as a planning check.
Confirm the math
Official sources to keep open
Open these beside the estimate so the official value, levy, and rules stay in view.
Next steps
What to check next
The estimate is only useful when it is tied to the right place, value, and local program.
Property tax questions people ask first
Is this the official property-tax bill?
No. This is a planning estimate. The official number comes from the county value, the local levy stack, and the collector's bill for the exact parcel.
Why does the school district matter so much?
A Missouri levy is a stack of local taxing districts. School, city, fire, library, ambulance, county, and special districts can all be part of it, and nearby homes can sit in different stacks.
What should I do if the value looks wrong?
Start with the assessor's record card and market-value evidence: recent sales, condition, photos, square footage, or a recent appraisal. Then check the county appeal deadline.
Where do I find the levy?
Start with your tax bill, county collector, or the Missouri State Auditor's tax-rate lookup. Use the exact parcel when you can, because local district lines matter.
Sources and review
Where this information comes from
Start with the summary here, then use the linked office or agency for the current rule.
- Data used
- Missouri assessment formula and classifications (State Tax Commission) plus property-tax rates (Missouri State Auditor)
- Last reviewed
- June 18, 2026
- Missouri State Tax Commission FAQ for assessment ratios, reassessment timing, personal property, and appeal basics.
- Missouri State Tax Commission — how property tax is calculated for assessment ratios and the assessed-value-times-levy formula.
- Missouri State Auditor — property tax rate lookup for the official per-district levy rates, searchable by county.
- Missouri State Auditor — annual Property Tax Rates report for the statewide rate report published under RSMo 137.073.
Use this carefully: Missouri has no single county levy — a parcel's rate is the sum of its taxing districts (county, school, city, fire, library, and more), and the school district varies most. Any prefilled figure is a typical example; use your tax bill, the county collector, or the State Auditor's tool for the exact parcel.
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