HonestCasa logoHonestCasa
Updated 2025 Tax Year

Warren County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
0.479% countywide base rate, varies by taxing district combination
Exemptions
5+ Available
Section 1

How Property Tax Works

Warren County, Indiana operates under a property tax system that funds essential local services including schools, county government operations, public safety, and infrastructure maintenance. For the 2025 tax year (based on January 1, 2024 assessments), the county tax rate is $0.479 per $100 of assessed value, representing a decrease from the 2024 rate of $0.53 per $100. This translates to an effective rate of approximately 0.479% of assessed value countywide.

Property tax rates in Warren County vary by location within the county due to different combinations of taxing districts, including school corporations, townships, libraries, and other special service districts. While the base county rate provides a foundation, your actual tax bill will depend on which specific taxing districts serve your property location. The Indiana Department of Local Government Finance oversees the assessment and collection process, with local officials handling day-to-day administration.

Section 2

What Makes Up Your Tax Bill

ComponentRate per $100Description
Base County Rate$0.479Core county services and operations for FY 2025-2026
School DistrictVariesLocal school corporation operating and debt service
TownshipVariesTownship government and fire protection services
Library DistrictVariesPublic library operations and maintenance
MunicipalVariesCity/town services (if within incorporated area)
Special DistrictsVariesAdditional assessments for specific improvement districts

Note: The $0.479 base rate applies to the FY 2025-2026 levy year for properties assessed as of January 1, 2024. Your total effective rate will be higher when combined with school, township, and other local taxing district rates. Contact the Warren County Assessor's office for your specific location's combined rate, as rates can vary significantly between different areas of the county.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Warren 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 taxes in Warren County are additional property tax assessments that occur when there are changes to property ownership, value, or use after the January 1st assessment date but during the current tax year. The most common triggers include new construction completion, property improvements that increase value, changes in property use classification, or corrections to previous assessments.

When supplemental taxes are levied, they are calculated by applying the current tax rate to the difference between the new assessed value and the previous assessed value, prorated for the remaining months in the tax year. For example, if a $50,000 home addition is completed and assessed in July, the supplemental tax would apply the applicable tax rate to that $50,000 increase for the remaining six months of the tax year. Property owners receive a separate supplemental tax bill with specific due dates that differ from the regular May and November payment schedule.

Example Calculation

Example 1: $300,000 Property Value

  • Market Value: $300,000
  • Assessed Value (100%): $300,000
  • Standard Homestead Credit (if applicable): -$45,000
  • Net Taxable Value: $255,000
  • Annual Tax ($255,000 × 0.479%): $1,221
  • Monthly Escrow Estimate: $102

Example 2: $600,000 Property Value

  • Market Value: $600,000
  • Assessed Value (100%): $600,000
  • Standard Homestead Credit (if applicable): -$45,000
  • Over-65 Credit (if applicable): -$12,480
  • Net Taxable Value: $542,520
  • Annual Tax ($542,520 × 0.479%): $2,599
  • Monthly Escrow Estimate: $217

Example 3: $1,000,000 Property Value

  • Market Value: $1,000,000
  • Assessed Value (100%): $1,000,000
  • Standard Homestead Credit (if applicable): -$45,000
  • Net Taxable Value: $955,000
  • Annual Tax ($955,000 × 0.479%): $4,574
  • Monthly Escrow Estimate: $381

Note: Tax credits require annual application and are not automatically applied. Calculations use base county rate only; actual bills include additional taxing district rates.

See How Taxes Affect Your Payment

Property taxes are just part of your total monthly cost. Get the full picture.

Calculate Now
Section 5

Escrow & Property Taxes

Most mortgage lenders in Warren County require borrowers to maintain an escrow account for property tax payments, especially when the loan-to-value ratio exceeds 80%. Lenders collect monthly escrow payments as part of your mortgage payment, typically calculating 1/12th of the estimated annual tax bill plus a cushion for potential increases. The lender pays your property taxes directly to the Warren County Treasurer on the May 10th and November 10th due dates.

Property owners should verify that their lender has accurate tax information, particularly after reassessments or when tax credits are applied or removed. You can monitor your escrow account through annual escrow analysis statements provided by your lender, and you have the right to request escrow account information at any time. If your property taxes decrease significantly due to successful appeals or new credits, you may be eligible for an escrow refund or reduced monthly payments.

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 Warren County property taxes due for 2026? A: Property taxes are due May 10, 2026, and November 10, 2026. Payments are made to the Warren County Treasurer.

Q: What tax credits are available and do they require application? A: Indiana offers various tax credits including the Standard Homestead Credit, Over-65 Credit, and Disabled Veterans Credit. All credits require annual application and are not automatically applied to your tax bill.

Q: How does the Homestead Credit work? A: The Homestead Credit limits annual assessment increases to a maximum percentage and provides a base credit amount. You must apply annually by April 1st, and the credit applies only to your primary residence.

Q: How often are properties reassessed in Warren County? A: Indiana properties are assessed annually as of January 1st. The Warren County Assessor determines assessed values based on market conditions and property characteristics as of that date.

Q: What are the penalties for late property tax payments? A: Late payments incur interest and penalties. Contact the Warren County Treasurer's office for current penalty rates and payment options for delinquent accounts.

Q: Can I pay my property taxes online? A: Yes, Warren County typically offers online payment options through the County Treasurer's website. Check the official Warren County website for current payment portals and accepted payment methods.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Warren County Property Tax Assessment Board of Appeals by specific deadlines. Contact the County Assessor's office for appeal forms and procedures.

Q: Why did my tax bill change if my assessment stayed the same? A: Tax bills can change due to different tax rates from various taxing districts, changes in applied credits, or new special assessments for local improvements, even when your property's assessed value remains constant.

Q: What happens if I miss the April 1st deadline for tax credits? A: Missing the April 1st deadline typically means you cannot receive credits for that tax year. You must reapply the following year to receive credits for future tax bills.

Q: Do I need to reapply for the Homestead Credit every year? A: Yes, most tax credits in Indiana require annual application by the April 1st deadline to ensure continued eligibility and accurate application to your property tax bill.

See the Full Picture of Your Home Costs

Property taxes are just one piece of homeownership. HonestCasa helps you understand your total monthly cost and explore safe ways to access your home equity.

Total Monthly Cost

Mortgage + taxes + insurance + HOA

Equity Growth

Track how your equity grows over time

Safe Equity Access

Options for projects or debt payoff

Free • No credit check • 2-minute estimate