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Updated 2025 Tax Year

DeKalb County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
0.8% to 1.4% effective rate, varies by taxing district combination
1st Due
May 10
2nd Due
Nov 10
Exemptions
5+ Available
Section 1

How Property Tax Works

DeKalb County, Indiana operates under the state's property tax system, which funds essential local services including schools, fire protection, law enforcement, and infrastructure maintenance. Property taxes in Indiana are calculated based on assessed value, with DeKalb County's effective tax rates typically ranging from 0.8% to 1.4% depending on your specific location within the county and the taxing districts that serve your property.

Your actual tax rate varies significantly based on your property's location within DeKalb County due to different combinations of taxing districts, including school corporations, fire districts, library districts, and other special assessments. The county reassesses all properties on a cyclical basis to ensure fair market valuations, and various tax credits are available to qualified homeowners, though most require annual application to receive the benefit.

Section 2

What Makes Up Your Tax Bill

ComponentApproximate RateDescription
County General0.2500Basic county operations and services
School Corporation0.6000-0.8000Varies by school district (DeKalb Eastern, Garrett-Keyser-Butler)
Township0.1000-0.1500Fire protection, poor relief, and local services
Library District0.0800-0.1200Public library operations
City/Town0.1500-0.3000Municipal services (where applicable)
Special Districts0.0500-0.2000Cumulative funds, debt service, special assessments

Note: These rates are estimates for Tax Year 2024 (payable in 2025) and vary by specific taxing district combinations. Contact the DeKalb County Auditor for exact rates applicable to your property.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in DeKalb 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 taxes in DeKalb County are additional property tax bills issued when there are changes to your property during the tax year that weren't captured in the original assessment. Common triggers include new construction, property improvements, ownership transfers, or corrections to the original assessment. These supplemental bills are calculated by applying the current tax rate to the change in assessed value, prorated for the portion of the year the change was in effect.

For example, if you complete a $50,000 home addition in July, you would receive a supplemental tax bill for approximately half the year (6 months) on the additional assessed value. If your total tax rate is 1.2%, the supplemental tax would be roughly ($50,000 × 0.012 × 0.5 = $300) for the remainder of that tax year.

Example Calculation

Example 1: $300,000 Home with Homestead Credit

  • Assessed Value: $300,000
  • Standard Homestead Credit Applied: -$45,000
  • Net Taxable Value: $255,000
  • Tax Rate (estimated): 1.1%
  • Annual Tax: $2,805
  • Monthly Escrow: $234

Example 2: $600,000 Home with Homestead + Over-65 Credit

  • Assessed Value: $600,000
  • Standard Homestead Credit: -$45,000
  • Over-65 Credit: -$12,480
  • Net Taxable Value: $542,520
  • Tax Rate (estimated): 1.0%
  • Annual Tax: $5,425
  • Monthly Escrow: $452

Example 3: $1,000,000 Home with Homestead Credit

  • Assessed Value: $1,000,000
  • Standard Homestead Credit: -$45,000
  • Net Taxable Value: $955,000
  • Tax Rate (estimated): 0.9%
  • Annual Tax: $8,595
  • Monthly Escrow: $716

Note: All credits require annual application and qualification verification.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in DeKalb County require property tax escrow accounts, where you pay 1/12 of your annual property tax bill with each monthly mortgage payment. Your lender collects these funds and pays your property taxes directly to the county when due. DeKalb County property taxes are paid in two installments: spring taxes (due May 10) and fall taxes (due November 10).

Your lender will typically maintain a cushion in your escrow account and conduct an annual analysis to adjust your monthly payment based on actual tax bills received. If your property taxes increase due to reassessment or rate changes, your monthly escrow payment will be adjusted accordingly. You can verify that your taxes are being paid correctly by checking with the DeKalb County Treasurer's office or accessing your account online through the county's payment portal.

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 DeKalb County? A: Property taxes are due in two installments: spring taxes are due May 10, 2025, and fall taxes are due November 10, 2025, for the current tax year.

Q: What homestead tax credits are available and do I need to apply? A: The standard homestead credit provides up to $45,000 in assessed value reduction and requires annual application by December 31. Additional credits include over-65, disability, and veteran credits, all requiring separate applications and documentation.

Q: How does the homestead credit work? A: The homestead credit reduces your assessed value for tax calculation purposes and caps annual assessment increases. It does NOT reduce your property's market value but limits how much your taxable assessment can grow each year, typically to 5% annually.

Q: How often are properties reassessed in DeKalb County? A: Indiana law requires annual assessment updates, but DeKalb County conducts comprehensive physical inspections on a rotating cycle. You can appeal your assessment through the County Assessor's office if you believe it's inaccurate.

Q: What happens if I pay my property taxes late? A: Late payments incur a 10% penalty, and if taxes remain unpaid, the property may eventually be subject to tax sale proceedings.

Q: Can I pay property taxes online? A: Yes, DeKalb County offers online payment options through their official website. You can also pay in person at the Treasurer's office, by mail, or at participating banks.

Q: Why did my tax bill increase when property values are stable? A: Tax increases can result from rising tax rates due to increased local government budgets, loss of tax credits due to non-application, or changes in special district assessments.

Q: What special district taxes might apply to my property? A: Depending on location, you may pay additional taxes for cumulative funds, economic development, fire protection districts, or debt service for local improvements. These vary significantly by area within the county.

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