Verified July 2026 · By Oleg Kachko · Reviewed for accuracy against primary state and county sources
Boone County property tax costs the typical homeowner about $2,328 a year, on a median home value of $272,800 – an effective rate of about 0.82%. That is below the national average annual bill of $4,271. This page shows you where that number comes from, who actually sets it, the deadline to challenge it, and the exemptions you may be leaving on the table.
Boone County property tax at a Glance
- Effective property tax rate: 0.82%
- Median annual bill: $2,328
- Median home value: $272,800
- Who assesses your home: Boone County Assessor
- Appeal deadline: Second Monday in July
On this page
Boone County property tax: the real numbers
Property tax is the most local tax there is. Two homes of the same value in different counties – sometimes in different towns of the same county – can carry very different bills, because the rate is the sum of every overlapping district that taxes you: the county, the town or city, the school district, and often fire, library or water districts on top. So the boone county property tax figure below is an average across the whole county – your own bill depends on which districts you sit inside.
| Figure | Boone County | National |
|---|---|---|
| Median annual property tax bill | $2,328 | $4,271 |
| Effective property tax rate | 0.82% | about 0.90% |
| Median home value | $272,800 | – |
Source: U.S. Census Bureau American Community Survey (5-year), the same dataset the Tax Foundation uses. The effective rate is total real-estate taxes paid divided by total owner-occupied home value – so it reflects what people actually pay, not the headline millage rate.
Who actually sets your boone county property tax value
Your assessed value is set by Boone County Assessor. That office does not set your tax rate – the county board, your city, and your school district each set their own, and your bill is the sum. So the assessor can only be argued with about one thing: what your home is worth. That is exactly what an appeal is.
How often your boone county property tax value is reassessed:
County assessors value residential property at 19% of market value (a constitutional ratio) and reassess in odd-numbered years.
How to appeal your boone county property tax assessment
⚠ The deadline — miss it and you usually wait a full year
Second Monday in July
Contact the assessor informally first (notices go out in spring of reassessment years). File a formal appeal with the County Board of Equalization by the second Monday in July (the third Tuesday in July in St. Louis County). If denied, appeal to the Missouri State Tax Commission within 30 days of the Board’s decision or by September 30, whichever is later. Confirm your county’s dates.
Almost every boone county property tax appeal comes down to one claim: the assessor thinks my home is worth more than it really is. Everything below is about proving that.
Do this first, before you file anything: ask for your property record card and read it. A surprising share of assessments are simply wrong on the facts – the wrong square footage, a bathroom you do not have, a finished basement that is bare concrete, a garage that was torn down. Factual errors are the easiest appeals to win, because there is nothing to argue about.
Then build the one thing that actually wins appeals: comparable sales. Find three to five homes near you, as similar as you can get on size, age, and condition, that sold recently for less than your assessed value. Not listings – sales. Not Zillow estimates – recorded sales. Boards ignore opinions and respond to comps.
A successful boone county property tax appeal does not change your tax rate – it lowers the value the rate is applied to, which lowers the bill for as long as the new value stands.
Appeals are heard by the County Board of Equalization, then the Missouri State Tax Commission. In most places there is a free, informal step first – a conversation or a paper review with the assessor – and it resolves a large share of cases without a hearing. Take it. It costs you nothing and it is the fastest way to win.
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One honest warning: an appeal reviews your value, and a review can go up as well as down. That is uncommon when you bring real comparable sales, and it is exactly why you check your comps before you file.
Where to go: find your office through Missouri Dept of Revenue, which lists the assessing office for every county in Missouri.
Boone County property tax exemptions you may qualify for
This is where most homeowners quietly overpay their boone county property tax. Exemptions are almost never applied automatically – you have to claim them, and many people simply never do. It is worth ten minutes of your time to check.
HOMESTEAD: Property Tax Credit is up to $1,100 for owners (income-limited). Confirm current income limits with the Missouri Dept of Revenue. | SENIOR: The freeze holds your bill at the base-year amount (no fixed dollar figure). Not all counties participate. Confirm adoption, the application window, and rules with your county assessor/collector. | VETERAN: Former-POW exemption = full exemption; otherwise use the Property Tax Credit. Confirm with your county assessor. | DISABILITY: Up to $1,100 (owners), income-limited; confirm current limits with the Missouri Dept of Revenue.
Homestead: Missouri has NO general homestead exemption that lowers value. The main relief is the Missouri Property Tax Credit (‘circuit breaker’) – a refundable income-tax credit for income-eligible seniors and disabled homeowners – plus a local-option Senior Real Estate Property Tax Freeze that many counties have adopted.
Senior / over-65: Senior Real Estate Property Tax Freeze (SB 190 of 2023, amended by SB 756 of 2024) – a county opt-in program that freezes the property-tax bill on a primary residence at a ‘base year’ for eligible owners 62+ (the county credits later increases). Adoption and rules vary by county. Seniors 65+ may also use the income-based Property Tax Credit.
Veteran: Missouri has no standard statewide disabled-veteran property-tax exemption; a former prisoner of war with a 100% service-connected disability can be fully exempt, and disabled veterans may qualify for the income-based Property Tax Credit. Some counties offer local veteran help.
Disability: Disabled homeowners who meet the income limit can claim the same Missouri Property Tax Credit (‘circuit breaker’) as seniors, regardless of age.
Common questions about boone county property tax
Why did my boone county property tax bill go up when I did nothing to the house?
Two different things can raise a bill: your assessed value went up, or a taxing district raised its rate. They are separate, and only the first one can be appealed. Your notice will show which changed.
Is it worth appealing my boone county property tax?
Ask one question: would a similar home near mine sell for less than the value the assessor has put on mine? If yes, you have a case, it is usually free to file, and in many places the informal review settles it without a hearing.
Do I need to hire someone to appeal?
No. The informal review and the local board are built for ordinary homeowners to use themselves, and there is normally no fee. Appeal services exist and can be worth it for some people, but you are not required to use one and you should never be told you are.
How is my boone county property tax bill actually calculated?
Your assessed value is multiplied by the combined rate of every district that taxes you, then any exemptions you have claimed are subtracted. That is why two neighbours can pay different amounts on identical homes – one of them claimed an exemption the other never did.
More on Missouri property tax
- Missouri property tax rates — how Boone County compares with every other county in the state.
- How to win your Missouri property tax appeal — the evidence that works and what to say at the hearing.
- Missouri property tax exemptions — who qualifies, how much each one saves, and how to apply.
- Missouri property tax due dates — when the bill is due and what happens if you are late.
- Property tax by state — every state, side by side.
The bottom line on boone county property tax
Do two things this week. First, pull your property record card and check the facts – square footage, rooms, condition. Second, check whether you are claiming every exemption you are entitled to, because most people are not. If your boone county property tax value looks higher than what a similar home nearby would actually sell for, you have grounds to appeal – and the only thing that can stop you is the deadline above.
Where our boone county property tax figures come from
- U.S. Census Bureau, American Community Survey — the rate, median bill and median value on this page.
- Tax Foundation, Property Taxes by State and County — the same dataset and method.
- Missouri Dept of Revenue — the office that can confirm your value, your exemptions and your deadline.
- Missouri Dept of Revenue (dor.mo.gov); Missouri State Tax Commission; RSMo chs. 135, 137
Informational only. Know Property Tax is not a government agency, not a county assessor, and not a tax-appeal service, and this is not legal, tax, or financial advice. Property tax rates, median bills, exemption amounts, and deadlines change every year, and every property is different. Any figure shown here is illustrative. Confirm your rate, your exemptions, and above all your appeal deadline with the office named on this page before you act.
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