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Updated 2025 Tax Year

Kosciusko County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
0.9% to 1.2% of assessed value, varies by taxing district and municipality
1st Due
May 10
2nd Due
Nov 10
Exemptions
4+ Available
Section 1

How Property Tax Works

Property taxes in Kosciusko County, Indiana, are the primary funding source for essential local services including public schools, county government operations, municipal services, and special districts. The county operates under Indiana's property tax system, which assesses real property at 100% of its true tax value (market value) as of the assessment date. Property owners receive tax bills based on their assessed value multiplied by the applicable tax rate for their specific location.

Effective tax rates in Kosciusko County typically range from approximately 0.9% to 1.2% of assessed value, though this varies significantly based on your property's location within specific taxing districts. The county includes multiple municipalities, school districts, and special taxing units that each levy their own rates. Your total property tax rate is the sum of all applicable taxing unit rates for your specific property location, meaning two similar properties in different parts of the county may have substantially different tax obligations.

The assessment process occurs on a cyclical basis, with property values reassessed to reflect current market conditions. Property taxes are collected to fund Kosciusko County government, local school corporations, townships, municipalities, and various special districts such as library districts and fire protection territories.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
Kosciusko County General0.0020210County government operations, services
School DistrictVaries by districtLocal school corporation funding
TownshipVaries by townshipTownship government and services
MunicipalVaries by city/townCity or town government (if applicable)
Library DistrictVaries by districtPublic library system funding
Fire ProtectionVaries by territoryFire department and emergency services
Total Composite Rate~0.97%Combined rate for all applicable districts

Rates shown are for Tax Year 2024 (Pay 2025). The county rate of 0.0020210 represents approximately 9.75% of the total composite rate. Your actual total tax rate depends on which combination of taxing districts serve your property location. School district rates typically represent the largest component of your total tax bill. Contact the Kosciusko County Assessor's office to determine the specific taxing units and rates applicable to your property.

Section 3

When Are Property Taxes Due?

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

First Installment
May 10
Delinquent after Dec 10
Second Installment
Nov 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 property taxes in Kosciusko County are additional tax assessments issued when there are changes to property ownership, improvements, or corrections to the original assessment during the tax year. The most common triggers include new construction completion, substantial property improvements, ownership transfers that reveal previously unreported improvements, or assessor corrections to property characteristics.

When supplemental taxes are levied, they are calculated based on the difference between the new assessed value and the previous assessed value, multiplied by the applicable tax rate for the remaining portion of the tax year. For example, if a property improvement adds $50,000 to your assessed value in July, you would owe supplemental taxes on that $50,000 for the remaining six months of the tax year.

Supplemental tax bills are issued separately from regular property tax bills and typically have different due dates. Property owners receive notice of the supplemental assessment and have appeal rights similar to regular assessments. These supplemental amounts are in addition to your regular annual property tax obligation and must be paid according to the schedule specified on the supplemental tax bill.

Example Calculation

Example 1: $300,000 Property

  • Assessed Value: $300,000
  • Homestead Standard Deduction: -$48,000 (requires application)
  • Net Taxable Assessment: $252,000
  • Tax Rate: 0.97% (approximate composite rate)
  • Annual Tax: $2,444
  • Monthly Escrow: $204

Example 2: $600,000 Property

  • Assessed Value: $600,000
  • Homestead Standard Deduction: -$48,000 (requires application)
  • Net Taxable Assessment: $552,000
  • Tax Rate: 0.97% (approximate composite rate)
  • Annual Tax: $5,354
  • Monthly Escrow: $446

Example 3: $1,000,000 Property

  • Assessed Value: $1,000,000
  • Homestead Standard Deduction: -$48,000 (requires application)
  • Net Taxable Assessment: $952,000
  • Tax Rate: 0.97% (approximate composite rate)
  • Annual Tax: $9,234
  • Monthly Escrow: $769

Note: All deductions require application and approval. Actual tax rates vary by specific taxing district combination. The Homestead Deduction must be filed by January 15th and the property must be your principal residence as of December 31st. Examples assume standard residential taxing district rates.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Kosciusko County require borrowers to maintain an escrow account for property tax payments, particularly when the loan-to-value ratio exceeds 80%. Your lender collects monthly escrow payments as part of your mortgage payment, depositing these funds into a dedicated escrow account to pay your property taxes when due.

Property taxes in Kosciusko County are typically collected in two installments during the year. Your mortgage servicer monitors tax bill due dates and pays directly from your escrow account. Lenders are required to provide annual escrow statements showing all deposits, payments, and account balances. If your actual tax obligation differs significantly from escrow projections, your monthly payment may be adjusted, and you may receive a refund or be required to pay an escrow shortage.

Property owners should verify that their lender has current contact information with the County Treasurer's office to ensure tax bills and notices are properly received. You can also monitor your property tax status online through the county's website to ensure payments are being made timely by your escrow servicer.

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 Kosciusko County for Tax Year 2024? A: Property tax bills for Tax Year 2024 (Pay 2025) are typically due in two installments. Personal property returns must be filed by May 15th. Contact the County Treasurer for specific due dates as they can vary.

Q: What tax credits are available and do they require application? A: The primary tax credit is the Homestead Deduction, which provides a $48,000 deduction from assessed value for Tax Year 2024. This is NOT automatic and requires application by January 15th. The property must be your principal residence as of December 31st.

Q: How does the Homestead Deduction work? A: The Homestead Deduction reduces your taxable assessed value by $48,000 but does NOT reduce your property's market value. It also includes assessment growth caps that limit annual assessment increases. You must apply by January 15th following the assessment year.

Q: How often are properties reassessed in Kosciusko County? A: Indiana law requires annual assessments, but properties may not be physically inspected every year. Market value adjustments and trending may be applied. Major reassessments typically occur periodically to ensure assessments reflect current market conditions.

Q: What are the penalties for late property tax payments? A: Late payments are subject to penalties and interest charges. The exact penalty structure varies, but typically includes a percentage penalty plus monthly interest charges on the unpaid balance.

Q: Can I pay my property taxes online? A: Contact the Kosciusko County Treasurer's office for current online payment options and accepted payment methods. Many counties in Indiana offer online payment portals for property taxes.

Q: How do special district taxes work? A: Your property may be located within multiple special taxing districts (library, fire protection, school district, etc.). Each district sets its own tax rate, and your total tax bill is the sum of all applicable district rates multiplied by your net taxable assessment.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed within specific deadlines after receiving your assessment notice. Contact the Kosciusko County Assessor's office for appeal forms, deadlines, and procedures. You have the right to appeal to the County Property Tax Assessment Board of Appeals.

Q: What triggers a supplemental tax assessment? A: New construction, substantial improvements, ownership changes that reveal unreported improvements, or assessor corrections can trigger supplemental assessments. These result in additional tax bills for the current tax year.

Q: Are there additional tax credits for seniors or veterans? A: Indiana offers various tax credits for seniors, veterans, and disabled individuals. Contact the Kosciusko County Assessor's office for information about additional credits, eligibility requirements, and application procedures. Most require annual application by specific deadlines.

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