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Updated 2025 Tax Year

Johnson County
Property Tax Guide

Everything you need to know about property taxes in Johnson County, KS. Rates, due dates, exemptions, and how it affects your monthly payment.

3 Official Sources
8 min read
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Quick Facts
Tax Rate
0.339276 mills base county rate, varies significantly by location due to special districts
1st Due
Dec 20
2nd Due
May 10
Exemptions
5+ Available
Section 1

How Property Tax Works

Johnson County, Kansas operates under a property tax system that funds essential county services, schools, and various special districts throughout the region. Property taxes are the primary revenue source for local government operations, including public safety, infrastructure maintenance, parks and recreation, and educational services. The County Appraiser's Office discovers, lists, and values all taxable property within the county to ensure fair and equitable taxation across all properties.

The effective property tax rate in Johnson County varies significantly by location within the county due to different combinations of special taxing districts, including school districts, library districts, fire districts, and municipal assessments. While the base county rate for 2025 is 0.339276 mills, total effective rates typically range from approximately 2.5% to 3.5% when all taxing jurisdictions are combined. Property owners should note that their specific tax rate depends on their exact location and the particular special districts that serve their area.

Johnson County has maintained consistent compliance with state valuation requirements since 1992, ensuring accurate property assessments. The assessment process aims to achieve fair market value for all properties, with reassessments conducted regularly to maintain equity across the tax base.

Section 2

What Makes Up Your Tax Bill

ComponentRate (per $1,000)Description
Johnson County0.339276Base county services and operations
FMLR (Farm/Pasture Land)0.050000Agricultural land assessment
School DistrictsVariesK-12 education funding (rates vary by district)
Municipal TaxesVariesCity services (where applicable)
Library DistrictsVariesPublic library system funding
Fire DistrictsVariesFire protection and emergency services
Special AssessmentsVariesBonds, improvements, special projects

Note: These rates apply to Levy Year 2025. The total effective tax rate for any individual property depends on the specific combination of taxing jurisdictions serving that location. School district rates typically represent the largest component of total property taxes, often comprising 60-70% of the total bill. Property owners can determine their specific taxing districts and combined rate by using the Johnson County property lookup tool or reviewing their current tax statement.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Johnson County, property taxes are due in two installments:

First Installment
Dec 20
Delinquent after Dec 10
Second Installment
May 10
Delinquent after Apr 10
Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental property taxes in Johnson County are triggered by specific events that change a property's assessed value during the tax year. The most common triggers include ownership changes (such as property sales), completion of new construction, additions or major improvements to existing structures, and changes in property use classification. When these events occur, the County Appraiser's Office conducts a supplemental assessment to capture the difference between the property's previous assessed value and its new assessed value.

The supplemental tax calculation is based on the difference between the old and new assessed values, multiplied by the applicable tax rate for all taxing jurisdictions serving that property. The tax is then prorated based on the number of months remaining in the fiscal year from the date the change became effective. For example, if a property sale triggers a supplemental assessment in January with six months remaining in the tax year, the supplemental tax would cover those six months at the new assessed value.

Example: A property previously assessed at $400,000 is reassessed at $500,000 following a sale in January. With a combined tax rate of 3.0% and six months remaining in the tax year, the supplemental tax would be calculated as: ($500,000 - $400,000) × 0.03 × (6/12) = $1,500. This supplemental bill would be issued separately from the regular annual property tax bill.

Example Calculation

Example 1: $300,000 Property Value

  • Market Value: $300,000
  • Assessed Value (11.5% assessment ratio): $34,500
  • Less: Homestead Credit (application required): -$5,000 minimum
  • Net Taxable Value: $29,500
  • Annual Tax (assuming 3.0% effective rate): $885
  • Monthly Payment: $74

Example 2: $600,000 Property Value

  • Market Value: $600,000
  • Assessed Value (11.5% assessment ratio): $69,000
  • Less: Homestead Credit (application required): -$5,000 minimum
  • Net Taxable Value: $64,000
  • Annual Tax (assuming 3.0% effective rate): $1,920
  • Monthly Payment: $160

Example 3: $1,000,000 Property Value

  • Market Value: $1,000,000
  • Assessed Value (11.5% assessment ratio): $115,000
  • Less: Homestead Credit (application required): -$5,000 minimum
  • Net Taxable Value: $110,000
  • Annual Tax (assuming 3.0% effective rate): $3,300
  • Monthly Payment: $275

Important Notes: These examples use estimated effective tax rates. Actual rates vary by specific location and taxing districts. Tax credits such as the Homestead Credit require annual application and are not automatically applied. The Homestead Credit provides a minimum $5,000 reduction in assessed value for qualifying owner-occupied residential properties.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Johnson County require borrowers to maintain an escrow account for property tax payments, particularly for loans with less than 20% down payment. The lender collects monthly escrow payments along with principal and interest, then pays the property taxes directly to Johnson County when they become due. Escrow payments are calculated by dividing the annual property tax amount by 12 months, often with an additional cushion to account for potential tax increases.

Property taxes in Johnson County are typically due in two installments during the fiscal year. Lenders monitor tax due dates and make payments on behalf of borrowers to ensure timely payment and avoid penalties. Property owners with escrow accounts should receive annual escrow statements from their lenders showing tax payments made and projected future payments. It's important to verify that lenders have made timely payments by checking the Johnson County tax records online.

For property tax payments and verification of payment history, visit the Johnson County Treasury Department at: https://www.jocogov.org/department/treasury-and-financial-management/tax-collection. Property owners can view their tax statements, payment history, and make online payments through this portal. If you believe your lender has not made required tax payments, contact both your lender and the Johnson County Treasury Department immediately to resolve any payment issues before penalties accrue.

How HonestCasa Helps
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Section 6

Frequently Asked Questions

Q: When are property taxes due in Johnson County for the current fiscal year? A: Property taxes are typically due in two installments. The first half is generally due by December 20th, and the second half by May 10th of the following year. Check your current tax statement or the county website for exact due dates for the current levy year.

Q: What tax credits are available and do I need to apply for them? A: The primary tax credit is the Homestead Credit, which provides a minimum $5,000 reduction in assessed value for owner-occupied residential properties. This credit requires annual application and is not automatic. Additional credits may be available for seniors, veterans, or disabled property owners. All credits require application through the County Appraiser's Office.

Q: How does the Homestead Credit work? A: The Homestead Credit limits annual increases in assessed value for owner-occupied residential properties, typically capping increases at a certain percentage. It does not reduce your property's market value but provides relief from rapid assessment increases. You must file an application to receive this credit, and it must be renewed annually.

Q: When are properties reassessed and how can I appeal? A: Johnson County conducts regular reassessments to maintain current market values. Property owners receive assessment notices and have specific deadlines to file appeals. You can appeal through the online Appeal Portal at https://appealportal.jocogov.org/Home/Login or contact the Appraiser's Office for appeal procedures and deadlines.

Q: What are the penalties for late property tax payments? A: Late payments incur interest charges and penalties. Interest typically begins accruing after the due date, and additional penalties may apply for significantly delinquent accounts. Contact the Treasury Department for specific penalty rates and payment arrangements if needed.

Q: Can I pay my property taxes online? A: Yes, Johnson County offers online payment options through their official website. You can pay by electronic check or credit/debit card, though convenience fees may apply for card payments. Visit the Treasury Department's tax collection page for online payment options.

Q: Why do tax rates vary within Johnson County? A: Tax rates vary based on special taxing districts such as school districts, fire districts, library districts, and municipal boundaries. Each property's total tax rate is the sum of all applicable district rates for that location. Use the county's property lookup tool to determine your specific taxing districts.

Q: How can I find information about my property's assessment and taxes? A: Use the Johnson County property search tool at the Appraiser's website: https://www.jocogov.org/department/appraiser. You can search by address, parcel number, or owner name to view assessment history, tax amounts, and property details.

Verified Sources

Backed by 3 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
County
Johnson County Assessorjocogov.org
02
2025 Rates and Exemptionscityofjoshuatx.us
03
County
Johnson County Ks Property Taxnacdashboard.nara.gov
All sources verified as of 2025 Tax Year

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