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Updated 2025 Tax Year

Osage County
Property Tax Guide

Everything you need to know about property taxes in Osage 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 location and taxing districts - typically ranges from 1.5% to 2.5% of assessed value
1st Due
Dec 20
2nd Due
May 10
Exemptions
5+ Available
Section 1

How Property Tax Works

Osage County, Kansas operates under the state's property tax system, which serves as the primary funding mechanism for local government services, schools, and special districts. Property taxes in Osage County fund essential services including public education, county operations, road maintenance, fire protection, and various municipal services. The county follows Kansas state law requiring annual property assessments and tax collections.

Property tax rates in Osage County vary significantly by location within the county due to different combinations of taxing jurisdictions. Your total tax rate depends on which city, school district, township, and special districts (such as fire districts or library districts) serve your property. The effective tax rate typically ranges around Kansas's statewide average of approximately 1% of market value, though individual properties may experience higher or lower rates based on their specific taxing district combinations and any applicable tax credits.

Section 2

What Makes Up Your Tax Bill

The 2025 property tax rates for Osage County have not yet been officially adopted, as rates are determined annually by each taxing jurisdiction. The following components typically make up your total property tax bill:

ComponentRate RangeDescription
County GeneralVariesCounty operations, roads, courthouse, sheriff
School DistrictsVariesLocal school district operations and bonds
City/TownshipVariesMunicipal services (if within city limits)
Fire DistrictsVariesFire protection services
Special DistrictsVariesLibraries, drainage, other special services

Note: Final rates for the 2025 tax year will be announced by county officials closer to the tax billing period. Rates are expressed in mills per $1,000 of assessed valuation and vary by specific taxing district combinations within Osage County.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Osage 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 in Kansas may be levied when there are mid-year changes to property ownership, improvements, or corrections to assessments. These typically occur when new construction is completed, property transfers ownership with improvements, or when assessment errors are corrected by the county appraiser's office.

Supplemental taxes are calculated by applying the current tax rate to the change in assessed value, prorated for the portion of the tax year remaining. For example, if you complete a $100,000 home addition in July, the supplemental tax would be calculated on the increased assessed value for the remaining months of that tax year. The county will mail a separate supplemental tax bill when these situations occur.

Example Calculation

Based on Kansas assessment practices (typically 11.5% of market value for residential property), here are estimated calculations for Osage County properties:

$300,000 Home:

  • Assessed Value: $34,500
  • Less: Homestead Credit (if applicable): Varies
  • Net Taxable Value: ~$34,500
  • Annual Tax (estimated 1.0% effective rate): ~$3,000
  • Monthly Escrow: ~$250

$600,000 Home:

  • Assessed Value: $69,000
  • Less: Homestead Credit (if applicable): Varies
  • Net Taxable Value: ~$69,000
  • Annual Tax (estimated 1.0% effective rate): ~$6,000
  • Monthly Escrow: ~$500

$1,000,000 Home:

  • Assessed Value: $115,000
  • Less: Homestead Credit (if applicable): Varies
  • Net Taxable Value: ~$115,000
  • Annual Tax (estimated 1.0% effective rate): ~$10,000
  • Monthly Escrow: ~$833

Note: Tax credits require application and are not automatically applied. Actual rates vary by taxing district location within the county.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Osage County require property tax escrow accounts to ensure timely tax payments. Your lender collects monthly escrow payments as part of your mortgage payment, typically 1/12th of your annual property tax bill plus insurance premiums. The lender pays your property taxes directly to Osage County when they become due on November 15th each year.

Lenders must provide annual escrow account statements showing collections, payments, and any surplus or shortage adjustments. If your property taxes increase or decrease significantly, your monthly escrow payment will be adjusted accordingly. Property owners can verify tax payments through the Osage County Treasurer's office and should review their annual escrow statements to ensure accuracy. Some loan programs allow escrow waiver options for borrowers who meet specific criteria.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in Osage County? A: Property taxes are due annually by November 15th. Delinquent taxes accrue interest after this date.

Q: What tax credits are available and do they require application? A: Kansas offers several tax credit programs including Homestead credits, SAFESR (property tax relief for low-income seniors), and disabled veterans credits. All credits require application and are not automatic - you must file the appropriate forms to receive benefits.

Q: How does the Homestead credit work? A: The Homestead credit limits annual assessment increases rather than reducing market value. It caps assessment growth to help provide property tax stability. You must file a Homestead application (Form K-40H) to receive this benefit.

Q: How often are properties reassessed? A: Kansas law requires annual assessment updates. Property owners receive assessment notices in the spring and have 30 days from the mailing date to file an equalization appeal with the county appraiser.

Q: What are the penalties for late payment? A: Delinquent taxes accrue interest after November 15th. Contact the Osage County Treasurer's office for current interest rates and penalty information.

Q: Can I pay property taxes online? A: Contact the Osage County Treasurer's office directly for current online payment options and accepted payment methods.

Q: Why do tax rates vary within Osage County? A: Different combinations of school districts, cities, townships, fire districts, and other special taxing districts create varying total tax rates depending on your property's specific location.

Q: How do I apply for senior or disability tax relief? A: Kansas offers SAFESR (Form K-40PT) for qualifying low-income seniors and disabled veteran relief programs. Applications must be filed between January 1st and April 15th following the tax year, and you cannot have delinquent property taxes to qualify.

Verified Sources

Backed by 10 Official Government Sources

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

01
County
Osage County 2025 | Municipal Budgetsadmin.ks.gov
02
County
Osage County | Municipal Budgetsadmin.ks.gov
03
County
2025 Douglas County, Kansas Tax Levy Sheetdgcoks.gov
04
Tax Doc
Property Tax Calendarksrevenue.gov
05
County
Osage Countyadmin.ks.gov
06
County
County Clerk's Handbookksrevenue.gov
07
Frequently Asked Questions About Homesteadksrevenue.gov
08
Tax Doc
Kansas Property Tax Relief for Low Income Seniorsksrevenue.gov
09
State
United States Department of the Treasuryhome.treasury.gov
10
County
OSAGE COUNTY, KANSAS FINANCIAL STATEMENTS ...admin.ks.gov
All sources verified as of 2025 Tax Year

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