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Updated 2025 Tax Year

Leavenworth County
Property Tax Guide

Everything you need to know about property taxes in Leavenworth 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
37.374 mills ($37.374 per $1,000 of assessed value), varies by taxing district
1st Due
Dec 20
2nd Due
May 10
Exemptions
4+ Available
Section 1

How Property Tax Works

Leavenworth County, Kansas operates on a property tax system that serves as the primary funding mechanism for essential local services including public schools, county operations, emergency services, and infrastructure maintenance. Property taxes are levied annually on November 1st based on the assessed valuation of real and personal property as of the preceding January 1st. The county's tax rate for 2025 is 37.374 mills (equivalent to $37.374 per $1,000 of assessed value), which represents an increase above the revenue neutral rate.

Property tax rates in Leavenworth County vary significantly by location within the county due to overlapping special taxing districts, including school districts, fire districts, library districts, and municipal boundaries. This means two properties with identical assessed values may have different tax bills depending on their specific location and the services provided by local taxing authorities. Property owners should verify their specific tax rate by reviewing their annual tax statement, as the effective rate can range from the base county rate to significantly higher amounts when combined with all applicable district levies.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
County General37.374Base Leavenworth County levy for FY 2025
School DistrictsVariesUSD rates vary by district (USD 207, 453, 469, etc.)
Fire DistrictsVariesRural fire protection districts
Library DistrictsVariesPublic library service areas
Special AssessmentsVariesRoad improvements, drainage, other local projects

Note: The 37.374 mill rate shown is the county portion only for levy year 2025. Total effective tax rates typically range from 80-120+ mills when combined with school districts and other special taxing authorities. School district rates comprise the largest portion of most property tax bills. Property owners should consult their annual tax statement for their complete rate breakdown, as rates vary significantly based on the specific combination of taxing districts serving each property location.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Leavenworth 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 Leavenworth County are additional property tax assessments that occur when significant changes happen to a property after the January 1st assessment date but before the November 1st levy date. The most common triggers include new construction completion, major improvements or additions, change of ownership that removes exemptions, or discovery of previously omitted property. These supplemental assessments ensure that property improvements and ownership changes are properly reflected in the current tax year rather than waiting for the following assessment cycle.

Supplemental taxes are calculated by applying the current year's tax rate to the increased assessed value, prorated for the portion of the tax year remaining. For example, if a $100,000 home addition is completed in July, the supplemental tax would be calculated on the added assessed value (typically 11.5% of market value in Kansas) multiplied by the applicable tax rate, then prorated for approximately 4 months of the tax year. Property owners receive a separate supplemental tax bill that follows the same payment schedule as regular property taxes.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (11.5%): $34,500
  • Less: Homestead Credit (if applied): Varies based on assessment increase limitation
  • Net Taxable Value: ~$34,500
  • Annual Tax (37.374 mills county only): $1,289
  • Estimated Total with All Districts: ~$3,000-4,000
  • Monthly Escrow: ~$250-333

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (11.5%): $69,000
  • Less: Homestead Credit (if applied): Varies based on assessment increase limitation
  • Net Taxable Value: ~$69,000
  • Annual Tax (37.374 mills county only): $2,579
  • Estimated Total with All Districts: ~$6,000-8,000
  • Monthly Escrow: ~$500-667

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (11.5%): $115,000
  • Less: Homestead Credit (if applied): Varies based on assessment increase limitation
  • Net Taxable Value: ~$115,000
  • Annual Tax (37.374 mills county only): $4,298
  • Estimated Total with All Districts: ~$10,000-13,000
  • Monthly Escrow: ~$833-1,083

Note: These examples show county taxes only. Total tax bills include school districts and other local levies. All tax credits require separate applications and are not automatic.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Leavenworth County require property tax escrow accounts for borrowers with less than 20% equity. The lender collects monthly payments equal to 1/12 of the estimated annual property tax bill, holds these funds in escrow, and pays the county directly when taxes become due. Lenders typically collect an initial escrow deposit at closing equal to 2-3 months of estimated taxes to ensure adequate funds are available for the first payment cycle.

Property taxes in Leavenworth County are payable in two installments: the first half is due by December 20th, and the second half is due by May 10th of the following year. Lenders with escrow accounts usually pay both installments on time to avoid penalties. Property owners should verify their escrow payments annually by reviewing their tax statement, as assessment changes, rate increases, or new special district levies can create escrow shortages requiring adjustment of monthly payments. The county provides online access to current tax information, allowing both property owners and lenders to verify accurate payment amounts.

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 Leavenworth County? A: Property taxes for FY 2025 are due in two installments: first half by December 20, 2024, and second half by May 10, 2025. Late payments incur penalties and interest charges.

Q: What tax credits are available and do they require applications? A: Kansas offers several tax credits that require separate applications, including the Homestead Refund Credit for qualifying homeowners and credits for disabled veterans. These are not automatic and must be applied for annually through the county assessor's office.

Q: How does the Homestead Credit work? A: The Homestead Credit caps the annual increase in assessed value for qualifying owner-occupied residences, typically limiting increases to 10% per year. This does not reduce market value but limits assessment growth. Applications must be filed with the county assessor and renewed as required.

Q: How often are properties reassessed? A: Kansas law requires annual assessment updates, but full reappraisals typically occur every 4-6 years. Market value adjustments may occur annually based on sales data and economic factors.

Q: What are the penalties for late payment? A: Late payments incur interest charges at rates set by state law. Properties with delinquent taxes may eventually face tax sale proceedings if payments remain outstanding.

Q: Can I pay property taxes online? A: Yes, Leavenworth County typically offers online payment options through their official website. Contact the county treasurer's office for current payment methods and any associated convenience fees.

Q: Why do property tax rates vary within the county? A: Different areas are served by different combinations of school districts, fire districts, library districts, and other special taxing authorities, each with their own tax rates that are added to the base county rate.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Leavenworth County Board of Tax Appeals by June 1st following the tax year. Contact the county assessor's office for specific procedures and required documentation.

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. 2025 - 28files.leavenworthcounty.gov
02
Tax Doc
Property Taxation Testimonykslegislature.gov
03
Tax Doc
Revenue Neutral Rate Taxing Entity Worksheet 2025leavenworthcounty.gov
04
Tax Doc
Personal Property Taxleavenworthcounty.gov
05
State
K-STATE RESEARCH AND EXTENSION, LEAVENWORTH ...admin.ks.gov
06
Tax Doc
Property Tax Calendarksrevenue.gov
07
KANSASleavenworthcounty.gov
08
County
Board of County Commissionerskslegislature.gov
09
Tax Doc
Property Tax Letter.pdfleavenworthcounty.gov
10
County
Leavenworth County, Kansas - Financial Statementadmin.ks.gov
All sources verified as of 2025 Tax Year

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