Missouri property tax estimator
Estimate the tax bill before the reassessment surprise.
Short answer: Missouri starts with market value, turns it into assessed value by class, then applies the local levy per $100 of assessed value. The Missouri State Tax Commission explains the statewide ratios; your county bill or collector gives the local levy.
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
$0.00
Planning estimate only. Confirm the parcel value and levy locally.
Monthly escrow equivalent
$0.00
Effective rate on market value
0%
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 assessment ratio, then the levy per $100.
Step 1
Find market 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.
Step 2
Apply the class ratio.
Residential real estate is assessed at 19% of market value. Agricultural, commercial, and personal property use different official ratios.
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 in plain English
Take the market value. 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.
The practical move is simple: 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
Use these for the official version before you act on a tax estimate.
Helpful next steps
What to check next
The estimate is only useful when it is tied to the right place, value, and local program.
Sources and review
Where this information comes from
This page gives the short version, then points you back to the office or agency that controls the 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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