What is the property tax rate in Clay County?

The combined effective property tax rate in Clay County, Missouri is approximately 1.40%.

Clay County Property Tax Calculator (2026) — Missouri Property Tax Almanac

Property Tax in Clay County, 2026

A calculator and field guide for Liberty-area homeowners — and for anyone considering a move to Clay County — including Missouri's 19% residential assessment ratio (constitutionally fixed), Senate Bill 190's senior property tax freeze (age 62+, county opt-in — adopted by ~85 of 114 MO counties), the Missouri Property Tax Credit Claim (refundable up to $1,100), and triennial reassessment (every odd-numbered year).

Clay County, home to Liberty and 260k Missourians, operates under Missouri's constitutionally-fixed property tax system. Residential property is assessed at 19% of fair market value (Mo. Const. Art. X §4(b)); tax = AV × consolidated rate per $100. Reassessments occur every odd-numbered year. Senate Bill 190 (2023) authorizes counties to enact a senior property tax freeze for owners 62+ — and Clay County has adopted this freeze.

How the bill is built

Missouri property tax follows a 3-step calculation. Step 1: Fair Market Value. The Clay County Missouri Assessor's Office determines FMV every odd-numbered year. Step 2: Apply 19% residential assessment ratio. AV = FMV × 19%. Commercial uses 32%; agricultural uses 12%. Step 3: Apply consolidated rate. Tax = AV × consolidated rate ÷ $100. Clay's combined consolidated rate is approximately $7.40/$100 of AV — the effective rate against market value works out to about 1.40%.

SB 190 Senior Property Tax Freeze (county opt-in, age 62+). Missouri's primary senior protection — locks the property tax bill at the year-of-eligibility level. Approximately 85 of Missouri's 114 counties + St. Louis City have adopted SB 190 (including all major metros: St. Louis, Jackson, Clay, Platte, St. Charles, Greene, Boone, Jefferson, Cass). The base year is the year the senior turned 62 AND submitted an application. Future increases (voter-approved bonds, new construction/improvements, Missouri Blind Pension Fund) can still raise the bill. Apply with your county collector / assessor — applications typically open December - March each year.

Missouri does NOT provide a full property tax exemption for 100% disabled veterans — unusual among states. The primary veteran property tax relief is the Missouri Property Tax Credit Claim (MO-PTC), a refundable credit up to $1,100/year (income-tested at $30,000-$34,000). Available to 100% disabled vets, surviving spouses, AND seniors 65+. File Form MO-PTC with your Missouri state income tax return by April 15. Disabled veterans 62+ should file BOTH MO-PTC AND apply for the SB 190 senior freeze if their county has adopted.

Reassessments occur every odd-numbered year — and have produced significant volatility. Missouri's 2023 reassessment cycle produced 30%+ valuation increases in some counties (most-publicized: Jackson County's reassessment, which led to legal challenges). Property owners can appeal to the County Board of Equalization within 30 days of receiving the change of value notice — appeals must include comparable sales evidence, recent appraisals, or condition documentation.

2026 Clay County rate breakdown (consolidated rate per $100 of AV (19% of market value), Liberty district)

Taxing entity	Rate
Combined consolidated rate (~$7.40 / $100 of AV at 19% residential ratio)	7.4000
Combined total	7.4000

As of April 26, 2026 · From Clay County Missouri Assessor's Office.

Note: Clay County is **northern Kansas City suburbia** — anchored by Liberty (~32K, the seat — also home to William Jewell College), Gladstone (~28K), and the northern portion of Kansas City (which sprawls across Clay, Jackson, and Platte counties). Clay County is known for substantial outdoor recreation: Smithville Lake (a 7,000-acre US Army Corps of Engineers reservoir, one of the largest in the KC metro), Watkins Mill State Park, and the Clay County Fairgrounds. Excelsior Springs (~12K) is a historic mineral-springs resort town that drew significant 1900s-1930s tourism. The county's population has grown ~15% since 2010 driven by KC suburban expansion.

Note: Clay County effective property tax rates run approximately **1.40% — among the higher in Missouri**, comparable to St. Louis County. Combined consolidated rates run ~$7.40/$100 of AV. Median home values around $255K combined with the higher rate produce median annual bills around $3,570. Clay County adopted the SB 190 Senior Property Tax Freeze in November 2023 — among the first Missouri counties to do so. The base year for the freeze is the year of taxpayer eligibility (so seniors who qualified in 2024 use 2024 as their base year).

Note: For relocation buyers: Clay County is **the family-oriented Kansas City suburban** option — strong public school districts (North Kansas City, Liberty, Smithville, Park Hill — Park Hill spans Clay/Platte), substantial new construction, and outdoor recreation amenities. The trade-off vs. Johnson County, KS (which we don't cover): KS-side schools often score higher in national rankings, but Clay's 1.40% rate is comparable to JoCo Kansas' rates. Clay's SB 190 senior freeze is a meaningful retiree benefit — most Kansas counties do not offer comparable senior protection.

Deductions and exemptions for 2026

Missouri homeowner property tax relief operates differently than most states. The structural protection is the 19% residential assessment ratio — applied automatically (no application needed). Senior homeowners 62+ should focus on the SB 190 Senior Property Tax Freeze (county opt-in). 100% disabled veterans receive ONLY the partial Missouri Property Tax Credit Claim (MO-PTC) — Missouri does NOT provide a full vet exemption.

The 19% Residential Assessment Ratio (constitutional)

Missouri Constitution Art. X §4(b) fixes residential property at 19% of fair market value for assessment purposes. Commercial property uses 32%; agricultural property uses 12%. This is the structural protection — applied automatically with no application. The constitutional ratio means a home with $300K market value has only $57K assessed value (compared to states with 100% AR where the same home would have $300K AV against the rate).

SB 190 Senior Property Tax Freeze (county opt-in)

Missouri Senate Bill 190 (2023, modified 2024-2025) allows counties to enact a senior property tax freeze. Clay County HAS adopted SB 190. Eligibility: age 62+ as of December 31 of the application year; primary residence in Clay County; owner of record (or trust grantor); responsible for property taxes. Mechanism: base year is the year you became eligible AND submitted an application; bill is locked at the base-year amount. Exceptions (still increase): voter-approved bond indebtedness, new construction or improvements, Missouri Blind Pension Fund. Application: file with the county collector / assessor; application periods typically open December - March each year.

Missouri Property Tax Credit Claim (MO-PTC, refundable)

The MO-PTC provides a refundable credit up to $1,100/year for qualifying owners (or $750 for renters). Eligibility: seniors 65+, 100% disabled veterans (service-connected), surviving spouses of disabled vets, or 100% disabled non-vet. Income limits: $30,000 single / $34,000 married filing jointly for owners (lower for renters). File Form MO-PTC with your Missouri state income tax return by April 15. The credit is refundable — meaning you receive it even if you have no income tax liability. Disabled veterans 62+ should file BOTH MO-PTC AND apply for the SB 190 senior freeze.

Appealing your assessment

Missouri property tax appeals follow a 3-tier process. Level 1: County Board of Equalization (BOE). File a written appeal within 30 days of receiving the change of value notice (notices typically mailed late June - early July in reassessment years, which are odd-numbered). The BOE holds informal hearings — homeowners present comparable sales, recent appraisals, or condition documentation. Level 2: State Tax Commission. If denied, appeal to the State Tax Commission of Missouri within 30 days of the BOE decision. The STC is a quasi-judicial state agency that holds formal evidentiary hearings. Level 3: Circuit Court. STC decisions can be appealed to the county Circuit Court on legal/constitutional grounds. Most Missouri appeals are resolved at Level 1.

Cities and towns in Clay County

Clay County contains 6 incorporated municipalities, ranging from Liberty to the smallest village. Search volume for property tax is often city-specific, so here is the complete list — with population from the 2020 US Census, rounded to the nearest 100.

Data: US Census Bureau, 2020 Decennial Census. Populations rounded. Cities marked as "split" straddle a county border — the portion inside Clay County is subject to Clay County's tax rolls, while the portion outside is subject to the adjacent county's.

City or town	Type	Population (2020)
Kansas City Split	city	510,000
Liberty County seat	city	31,700
Gladstone	city	27,600
Smithville	city	12,300
Excelsior Springs Split	city	11,800
Kearney	city	11,800

About city-level property tax rates: The rate breakdown and calculator on this page reflect the Liberty tax district. Other cities in Clay County may pay into different school districts, city rates, and special districts — so their combined rates can differ, sometimes substantially. Always verify the specific rates for your address with the Clay County Missouri Assessor's Office before relying on any estimate.

Frequently asked questions

When are Missouri property taxes due?

Missouri property taxes are due December 31 of the tax year. Clay County bills are typically mailed in November. Late payments accrue interest plus penalty (typically 9% annual interest plus monthly penalty). Most Missouri homeowners pay through escrow via mortgage servicer. Some counties offer optional installment plans — contact your county collector for current options.

What is the SB 190 Senior Property Tax Freeze?

Missouri Senate Bill 190 (2023, modified 2024 and 2025) authorizes counties to enact a senior property tax freeze for owners 62 or older. The freeze locks the property tax bill at the year-of-eligibility level. Clay County HAS adopted SB 190. Eligibility: 62+ as of December 31; primary residence in the county; owner of record (or trust grantor); responsible for property taxes. Exceptions still increase: voter-approved bond indebtedness, new construction or improvements, Missouri Blind Pension Fund. Approximately 85 of Missouri's 114 counties + St. Louis City have adopted SB 190 — including all major metros.

How do I apply for the SB 190 senior freeze in Clay County?

Apply with your county collector / assessor. Application periods vary by county but typically run December - March each year. Required documents typically include: (a) proof of age (driver's license, birth certificate, or other government ID); (b) proof of ownership (deed, trust documents); (c) proof of primary residence (Missouri driver's license with property address; voter registration); (d) prior year's tax bill (establishes base year). The base year is the year you became eligible AND submitted an application. Annual renewal is typically required — file each year by the county's deadline.

Does Missouri have a full property tax exemption for 100% disabled veterans?

No — Missouri does NOT provide a full property tax exemption for 100% disabled veterans. This is unusual among states (most states offer some form of full disabled vet exemption). Missouri's primary veteran property tax relief is the Missouri Property Tax Credit Claim (MO-PTC): a refundable credit up to $1,100/year (income-tested at $30,000-$34,000 depending on filing status). Available to 100% disabled vets, surviving spouses, and seniors 65+. File Form MO-PTC with your Missouri state income tax return by April 15. Missouri's lower aggregate cost of living and SB 190 senior freeze partially offset the lack of full vet exemption — but disabled vets seeking full exemption may want to compare other states (Maryland, Virginia, Iowa, Wisconsin, Pennsylvania, etc.).

How does Missouri's reassessment cycle work?

Missouri reassesses real property every odd-numbered year (the "biennial" reassessment cycle, though "biennial" technically means every 2 years). Reassessments occurred in 2021, 2023, and 2025; the next is 2027. The 2023 cycle produced significant volatility — Jackson County's reassessment showed 30%+ valuation increases in some areas, leading to legal challenges and ongoing political fallout. Property owners can appeal to the County Board of Equalization within 30 days of receiving the change of value notice. Comparable sales evidence is the most-effective basis for appeal.

How do I appeal my Missouri assessment?

Missouri property tax appeals follow a 3-tier process. Level 1: County Board of Equalization (BOE). File appeal within 30 days of receiving the change of value notice (mailed late June - early July in reassessment years). BOE holds informal hearings — present comparable sales, recent appraisals, or condition documentation. Level 2: State Tax Commission of Missouri (STC). If denied, appeal to STC within 30 days of BOE decision. STC is a quasi-judicial state agency that holds formal evidentiary hearings. Level 3: Circuit Court. STC decisions can be appealed on legal/constitutional grounds. Most appeals are resolved at Level 1 — BOE members are often local citizens familiar with neighborhood values.

About Clay County

Beyond the property tax — a few things you might not know about the place.

Weird fact

Excelsior Springs (in Clay County) was **a major US mineral-springs health resort** during the early 1900s — at its peak, the city had 16 different mineral springs producing four distinct mineral water types (saline-sulfur, calcic, ferromanganese, and soda) and drew 100,000+ annual visitors seeking health benefits. The Hall of Waters (a 1937 art deco building in downtown Excelsior Springs) housed therapeutic baths, drinking fountains for each spring type, and a mineral water bottling operation. The springs' health-tourism appeal faded after the 1930s as scientific medicine displaced "taking the waters" as therapy. The Hall of Waters is preserved on the National Register of Historic Places — one of the most-significant Missouri art deco buildings.

Hometown hero

Jesse James

The American outlaw (1847-1882) was born and raised on a farm near Kearney (Clay County) — the Jesse James Birthplace Museum preserves his birth home (the James Farm) as a Missouri State Historic Site. James and his brother Frank operated as Confederate guerrillas during the Civil War, then formed the James-Younger Gang which robbed banks and trains across the Midwest from 1866 to 1882. James was killed by gang member Robert Ford in St. Joseph (Buchanan County) on April 3, 1882, and is buried in Mount Olivet Cemetery in Kearney. The James legend has been the subject of dozens of films and books — Brad Pitt portrayed him in The Assassination of Jesse James by the Coward Robert Ford (2007).

Biggest annual event

Liberty Fall Festival + Smithville Lake regattas

The Liberty Fall Festival (annual, late September in historic downtown Liberty, since 1968) is **the largest community festival in northern Kansas City** — drawing 100,000+ attendees with parades, 200+ vendors, the "World's Largest Apple Pie" competition (a Liberty tradition), and historic-downtown programming. Smithville Lake hosts regular sailing regattas and bass fishing tournaments year-round, including the FLW Tour (BASS major-tour-affiliate fishing tournament) which periodically features Smithville Lake on its national circuit.

Property Tax in Clay County, 2026