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Updated 2025 Tax Year

Harper County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
1.5% to 2.5% effective rate (varies by taxing district combination)
Exemptions
4+ Available
Section 1

How Property Tax Works

Harper County, Kansas operates under the state's property tax system to fund essential local services including schools, county government, emergency services, and infrastructure maintenance. Property taxes are assessed annually based on the appraised value of real estate and personal property, with the county assessor determining fair market values as of January 1st each year.

The effective property tax rate in Harper County varies by location within the county due to different combinations of taxing districts, including school districts, townships, cities, and special districts such as fire districts or library districts. While Kansas maintains a statewide base assessment rate around 1%, the total effective rate in Harper County typically ranges from approximately 1.5% to 2.5% of assessed value depending on your specific taxing jurisdiction. Property owners should note that their exact tax rate depends on which municipal, school, and special districts serve their property location.

Section 2

What Makes Up Your Tax Bill

ComponentEstimated RateDescription
County General Fund0.45-0.65%County operations, roads, courthouse, sheriff
School District0.75-1.20%Local school district operations and bonds
City/Township0.10-0.35%Municipal services (varies by city)
Special Districts0.05-0.25%Fire, library, cemetery districts as applicable
Total Estimated Range1.35-2.45%Varies by specific location within county

Rates shown are estimates for the 2024-2025 levy year and are subject to change based on final assessed valuations and budget approvals. The 2025 property tax rates have not been finalized as of this publication. Your actual rate depends on the specific combination of taxing districts that serve your property location within Harper County.

Section 3

When Are Property Taxes Due?

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

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 Harper County are triggered when there are changes to property ownership, new construction, or improvements that increase the assessed value after the January 1st assessment date. These supplemental assessments ensure that property taxes reflect current ownership and property conditions throughout the tax year.

When supplemental taxes are issued, they are calculated by applying the current year's tax rate to the change in assessed value, prorated for the remaining months in the fiscal year. For example, if you complete a $50,000 home addition in March, and your effective tax rate is 2%, you would owe approximately $833 in supplemental taxes (($50,000 × 2% × 9 remaining months) ÷ 12 months). Supplemental tax bills are typically mailed within 60 days of the assessment change and follow the same payment schedule as regular property taxes.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Less: Homestead Credit (if applied): -$2,000 assessment cap benefit
  • Net Taxable Value: ~$298,000
  • Tax Rate: 1.8% (example district combination)
  • Annual Tax: $5,364
  • Monthly Escrow: $447

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Less: Homestead Credit (if applied): -$4,000 assessment cap benefit
  • Net Taxable Value: ~$596,000
  • Tax Rate: 2.0% (example district combination)
  • Annual Tax: $11,920
  • Monthly Escrow: $993

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Less: Senior/Disabled Veteran Credit (if qualified): Variable benefit
  • Net Taxable Value: ~$990,000+
  • Tax Rate: 2.2% (example district combination)
  • Annual Tax: $21,780+
  • Monthly Escrow: $1,815+

All credits require annual application and approval. Credits shown are estimates and actual benefits vary based on qualification and application approval.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Harper County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects monthly escrow payments as part of your mortgage payment and pays your property taxes directly to the Harper County Treasurer on the due dates: December 20th for the first half and June 20th for the second half.

Lenders typically analyze your escrow account annually and may adjust your monthly payment based on actual tax bills and account balances. You should receive an annual escrow analysis statement showing payments made, account balance, and any required payment adjustments. If your account has a shortage, lenders may spread the shortage over 12 months or request a lump sum payment. Property owners remain responsible for verifying that taxes are paid correctly and on time, even when using escrow services.

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 Harper County property taxes due? A: Property taxes are due in two installments: first half by December 20th (for the upcoming fiscal year) and second half by June 20th. For the current cycle, the first half was due December 20, 2024, and the second half is due June 20, 2025.

Q: What tax credits are available and do they require application? A: Kansas offers several tax credits that require annual application: Homestead Credit (limits assessment increases), Property Tax Relief for Low Income Seniors (K-40PT), and Property Tax Relief for Seniors and Disabled Veterans (K-40SVR). None of these credits are automatic - you must apply through the Kansas Department of Revenue.

Q: How does the Homestead Credit work? A: The Homestead Credit doesn't reduce your home's market value but instead caps annual assessment increases. You must file form K-40H annually with the Kansas Department of Revenue. This credit helps limit property tax growth on your primary residence but requires active application each year.

Q: How often are properties assessed and can I appeal? A: Properties are assessed annually as of January 1st. You can appeal your assessment to the Harper County Board of Tax Appeals if you believe the assessed value is incorrect. Appeal deadlines and procedures are typically outlined on your assessment notice.

Q: What are the penalties for late property tax payments? A: Late payments incur interest and penalty charges. Delinquent taxes can eventually result in tax sale proceedings. Contact the Harper County Treasurer's office for specific penalty rates and payment options if you're experiencing difficulty.

Q: Can I pay property taxes online? A: Contact the Harper County Treasurer's office at the courthouse to inquire about online payment options and accepted payment methods for property taxes.

Q: Why do tax rates vary within Harper County? A: Your property may be served by different combinations of school districts, cities, townships, fire districts, and other special taxing districts. Each district sets its own levy rate, so your total rate depends on which specific districts serve your property location.

Q: Do special districts affect my property taxes? A: Yes, special districts like fire departments, libraries, or rural water districts can add to your property tax bill. These appear as separate line items and vary by geographic location within the county.

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