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Updated 2025 Tax Year

Lyon County
Property Tax Guide

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

10 Official Sources
8 min read
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Quick Facts
Tax Rate
Varies by district, typically 80-120 mills (8-12%) based on taxing jurisdictions
1st Due
Dec 20
2nd Due
May 10
Exemptions
5+ Available
Section 1

How Property Tax Works

Lyon County, Kansas operates on a property tax system that funds essential local services including schools, county government operations, emergency services, and infrastructure maintenance. Property taxes are calculated by applying the local tax rate (expressed in mills) to your property's assessed value, which is determined by the Lyon County Appraiser's Office based on fair market value.

The effective tax rate in Lyon County varies significantly depending on your specific location within the county, as different areas are served by various special taxing districts including school districts, fire districts, townships, and other municipal services. These overlapping jurisdictions each levy their own rates, which are combined to determine your total property tax bill. Property owners should expect their actual tax rate to differ based on which combination of taxing districts serve their property.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
County GeneralVariesBasic county operations and services
School DistrictsVariesLocal school district funding (varies by district)
Lyon County Library>1.529Exceeds Revenue Neutral Rate for FY 2025
Fire DistrictsVariesEmergency fire services (if applicable)
TownshipVariesLocal township services (if applicable)
Other Special DistrictsVariesAdditional services like drainage, cemetery districts

Note: Exact mill rates for FY 2025 have not been finalized at the time of this guide. The total combined rate typically ranges around 100-120 mills (10-12%) depending on your specific taxing districts. Contact the Lyon County Clerk for current rates specific to your property location.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Lyon 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 taxes are additional property tax bills issued when there are changes to your property's assessed value during the tax year. Common triggers include new construction completion, major improvements or additions, ownership transfers that prompt reassessment, or corrections to previous assessments.

When supplemental taxes are issued, they are calculated based on the difference between your old and new assessed values, multiplied by the applicable tax rate, and prorated for the remaining portion of the tax year. For example, if you complete a $50,000 home addition in March that increases your assessed value by $50,000, you would receive a supplemental bill for the additional taxes owed from March through the end of the tax year.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (11.5% of market value): $34,500
  • Less: Homestead Credit (if applied for): Varies
  • Net Taxable Value: $34,500
  • Annual Tax (assuming 110 mills): $3,795
  • Monthly Escrow: $316

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (11.5% of market value): $69,000
  • Less: Homestead Credit (if applied for): Varies
  • Net Taxable Value: $69,000
  • Annual Tax (assuming 110 mills): $7,590
  • Monthly Escrow: $632

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (11.5% of market value): $115,000
  • Less: Homestead Credit (if applied for): Varies
  • Net Taxable Value: $115,000
  • Annual Tax (assuming 110 mills): $12,650
  • Monthly Escrow: $1,054

Note: Credits shown require separate applications and are not automatically applied. Homestead credits limit assessment increases rather than reducing the base assessed value.

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Section 5

Escrow & Property Taxes

Most mortgage lenders require property tax payments to be included in your monthly mortgage payment through an escrow account. Your lender collects monthly tax payments throughout the year and pays your property tax bills directly to Lyon County when they become due. Lenders typically collect 1/12 of your annual tax bill each month, plus a small cushion to account for potential increases.

Property tax bills are issued annually and payments are due in two installments: the first half by December 20th and the second half by June 20th of the following year. If you pay through escrow, verify that your lender receives and pays these bills on time, as you remain ultimately responsible for ensuring timely payment. You can verify payments by checking with the Lyon County Treasurer's office or reviewing your annual escrow analysis statement from your lender.

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Section 6

Frequently Asked Questions

Q: When are Lyon County property taxes due for the current fiscal year? A: The first half payment is due by December 20th, and the second half is due by June 20th of the following year. Interest is added if the first half isn't paid by December 20th.

Q: What tax credits are available and do I need to apply? A: Kansas offers several tax credits including the Homestead Refund (K-40H), Property Tax Relief for Low Income Seniors (K-40PT), and Property Tax Relief for Seniors and Disabled Veterans (K-40SVR). All credits require separate applications and are not automatic.

Q: How does the Homestead credit work? A: The Homestead credit doesn't reduce your property's assessed value but instead caps annual assessment increases. You must file annually to maintain this benefit, and it's designed to provide property tax relief by limiting how much your assessment can grow each year.

Q: How often are properties reassessed in Lyon County? A: Kansas law requires properties to be appraised annually. The Lyon County Appraiser's Office conducts ongoing assessments to maintain current market values for all properties.

Q: What happens if I pay my taxes late? A: Interest is added to unpaid taxes starting December 21st for the first half payment. Additional penalties may apply for extended delinquency, and properties can eventually be subject to tax sale proceedings.

Q: Can I pay my property taxes online? A: Contact the Lyon County Treasurer's office at (620) 341-3245 to inquire about current online payment options and accepted payment methods.

Q: Why do tax rates vary within Lyon County? A: Different areas of the county are served by various combinations of special taxing districts (school districts, fire districts, townships), each with their own mill levy, creating different total rates depending on location.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Lyon County Board of Tax Appeals. Contact the Lyon County Appraiser's Office for specific deadlines and procedures, which typically occur in the spring following the assessment notice.

Verified Sources

Backed by 10 Official Government Sources

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

01
Resolution No. 15-25 A RESOLUTION OF THE ...lyoncountyks.gov
02
September 11, 2025lyoncountyks.gov
03
Table of Contents Introduction Department Officials ---------- ...ksrevenue.gov
04
Treasurerlyoncountyks.gov
05
Tax Doc
Property Tax Calendarksrevenue.gov
06
Appraisal Calendarlyoncountyks.gov
07
Kansas Homestead Refund Programsksrevenue.gov
08
2023 Annual Report for the Kansas Department of Revenuekansascommerce.gov
09
County
County Appraiserlyoncountyks.gov
10
Supp Note on HB 2026kslegislature.gov
All sources verified as of 2025 Tax Year

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