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Updated 2025 Tax Year

Sumner County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
Varies by district, typically 1.2-1.8% effective rate based on mill levies and special districts
Exemptions
5+ Available
Section 1

How Property Tax Works

Sumner County, Kansas operates under a property tax system that funds essential local services including schools, county government, townships, and various special districts. Property taxes are the primary revenue source for these local governments, supporting everything from road maintenance and public safety to educational programs and library services.

The county's property tax structure follows Kansas state law, with properties assessed at fair market value and taxed according to mill levy rates that vary by location within the county. Due to special taxing districts such as school districts, fire districts, and other local authorities, property owners in different areas of Sumner County face varying total tax rates. The effective tax rate typically ranges around the state average of approximately 1%, though actual rates depend on your specific location and the combination of taxing districts that serve your property.

Property tax bills in Sumner County reflect the cumulative effect of multiple local government levies, making it essential for property owners to understand both the assessment process and the various taxing authorities that contribute to their total tax obligation.

Section 2

What Makes Up Your Tax Bill

ComponentRate (per $1,000)Description
General Tax$1,136.52Base county levy for FY 2025
Special Tax$0.00Additional district assessments (varies by location)
Total Base Rate$1,136.52Combined rate for FY 2025

Note: This represents the base rate for Sumner County for the 2025 levy year. Actual tax rates vary significantly by location within the county due to overlapping special taxing districts including school districts, fire districts, township levies, and other local authorities. Your specific rate depends on which combination of these districts serves your property. Contact the Sumner County Clerk's office or use the county's parcel search tool to determine your exact rate.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Sumner 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 Sumner County are additional tax bills issued when there are changes to property ownership, improvements, or corrections to assessments during the tax year. These typically occur when new construction is completed, properties change hands, or the county assessor discovers previously unreported improvements or errors in the original assessment.

When supplemental taxes are issued, they are calculated on a pro-rated basis from the date the change occurred through the end of the tax year. For example, if a new home is completed and receives its certificate of occupancy in July, the supplemental tax would cover the period from July through December of that tax year, applying the current mill levy to the newly assessed value.

Property owners receive supplemental tax bills separately from their regular annual tax bills, and these must be paid according to the due dates specified on the supplemental notice. The supplemental amount is in addition to, not instead of, the regular annual property tax bill.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Less: Homestead Credit (if applicable): $0 (requires application)
  • Net Taxable Value: $300,000
  • Annual Tax: $300,000 ÷ $1,000 × $1,136.52 = $3,409.56
  • Monthly Escrow: $284.13

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Less: Homestead Credit (if applicable): $0 (requires application)
  • Net Taxable Value: $600,000
  • Annual Tax: $600,000 ÷ $1,000 × $1,136.52 = $6,819.12
  • Monthly Escrow: $568.26

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Less: Property Tax Relief Credits (if applicable): $0 (requires application)
  • Net Taxable Value: $1,000,000
  • Annual Tax: $1,000,000 ÷ $1,000 × $1,136.52 = $11,365.20
  • Monthly Escrow: $947.10

Note: These examples use the base county rate. Actual rates vary by special taxing districts. Tax credits shown require separate applications and are not automatically applied.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Sumner County require property tax escrow accounts for borrowers with less than 20% equity. Lenders collect monthly escrow payments along with your mortgage payment, then pay property taxes directly to the county when bills are due. Your monthly escrow amount is calculated by dividing your annual property tax bill by 12, often with an additional cushion to account for potential increases.

Property taxes in Sumner County are typically paid in two installments, with the first half due in December and the second half due in May. Lenders monitor these due dates and ensure payments are made on time to avoid penalties. You should receive an annual escrow analysis from your lender showing how your escrow account is managed and any adjustments to your monthly payment.

If you don't have an escrow account, you're responsible for making tax payments directly to Sumner County by the specified due dates. The county offers online payment options and accepts payments by mail, in person, or through authorized third-party services. Always verify that payments are received and processed on time to avoid late penalties and potential tax liens.

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 Sumner County for the current fiscal year? A: Property tax renditions (personal property filings) are due March 15, with late penalties beginning after this date. Real property tax deadlines vary, but second half taxes are typically due by May 10 with no extensions granted.

Q: What tax credits are available to reduce my property tax bill? A: Kansas offers several tax credits that require application: Property Tax Relief for Low Income Seniors (K-40PT), Property Tax Relief for Seniors and Disabled Veterans (K-40SVR), and Homestead Refund Claims (K-40H). These are credits that reduce your tax bill, not exemptions, and must be applied for annually.

Q: How does the Homestead credit work? A: The Homestead program limits annual assessment increases rather than reducing market value. It requires filing form K-40H and caps how much your assessed value can increase each year, providing stability in tax bills. This must be applied for - it's not automatic.

Q: Can I pay my property taxes online? A: Yes, Sumner County offers online property tax payment options. You can search for your property and pay through the official county website or authorized payment services. There may be convenience fees for online payments.

Q: How often are properties reassessed in Sumner County? A: Kansas law requires annual assessment updates, but Sumner County may conduct comprehensive reappraisals on a cyclical basis. The county assessor reviews market conditions and property sales to maintain current assessments.

Q: What if I disagree with my property assessment? A: You can appeal your assessment through the county appraiser's office. There are specific deadlines and procedures for appeals, typically requiring evidence of comparable sales or property condition issues that affect value.

Q: What happens if I pay my property taxes late? A: Late property tax payments in Sumner County incur penalties and interest charges. Continued non-payment can result in tax liens against your property and eventually tax sale proceedings.

Q: Do special districts affect my property tax rate? A: Yes, your location within Sumner County determines which school district, fire district, township, and other special districts serve your property. Each adds their own mill levy to your total tax rate, which is why rates vary throughout the county.

Q: Where can I find information about my specific property taxes? A: Use the Sumner County Parcel Search and Tax Search tools available on the county website, or contact the County Clerk's office directly for specific information about your property's assessment and tax obligations.

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