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Updated 2025 Tax Year

Johnson County
Property Tax Guide

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

10 Official Sources
8 min read
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Quick Facts
Tax Rate
0.339276% county rate - total rates vary by location due to school district and municipal levies
1st Due
May 10
2nd Due
Nov 10
Exemptions
5+ Available
Section 1

How Property Tax Works

Johnson County, Indiana operates under a property tax system that funds essential local services including schools, public safety, infrastructure, and county government operations. Property taxes are assessed annually based on the assessed value of real estate and personal property, with tax bills calculated using rates set by various local taxing units including the county, townships, school districts, and special service districts.

The effective property tax rate in Johnson County for the 2025 tax year is approximately 0.339276% at the county level, though actual rates vary significantly by location within the county due to additional levies from school districts, townships, municipalities, and special taxing districts. Property owners can expect their total effective rate to be higher when all applicable district taxes are combined. Recent data indicates property tax increases ranging from 5.4% to 7.1% for 2025, reflecting both assessment value changes and rate adjustments across the various taxing units.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
County0.339276%Base county operations, services, and administration
FMLR0.050000%Family and Medical Leave Reserve fund
School DistrictsVariesLocal school district levies (rates vary by district)
TownshipVariesTownship services and fire protection
MunicipalVariesCity/town services (if applicable)
Special DistrictsVariesLibrary, parks, economic development districts

Rates shown are for FY 2025-2026 levy year. Total effective rates typically range from 1.0% to 2.5% depending on your specific location and applicable taxing districts within Johnson County. Contact the Johnson County Assessor's Office for your specific combined rate.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Johnson 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 Johnson County are triggered by changes in property ownership, new construction, or significant improvements that occur after the annual assessment date but before the end of the tax year. These supplemental assessments capture the increased value and ensure proper taxation for the current year rather than waiting until the following tax cycle.

When supplemental taxes apply, they are calculated based on the difference between the old assessed value and the new assessed value, multiplied by the applicable tax rate, and prorated for the remaining months in the tax year. For example, if a property improvement adds $50,000 in assessed value in July, and the total tax rate is 1.5%, the supplemental tax would be approximately $375 ($50,000 × 0.015 × 6/12 months remaining).

Example Calculation

Example 1: $300,000 Property

  • Assessed Value: $300,000
  • Less: Standard Homestead Credit (assumes qualification): -$45,000
  • Net Taxable Value: $255,000
  • Annual Tax (at 1.4% effective rate): $3,570
  • Monthly Payment: $297.50

Example 2: $600,000 Property

  • Assessed Value: $600,000
  • Less: Standard Homestead Credit (assumes qualification): -$45,000
  • Net Taxable Value: $555,000
  • Annual Tax (at 1.4% effective rate): $7,770
  • Monthly Payment: $647.50

Example 3: $1,000,000 Property

  • Assessed Value: $1,000,000
  • Less: Standard Homestead Credit (assumes qualification): -$45,000
  • Net Taxable Value: $955,000
  • Annual Tax (at 1.4% effective rate): $13,370
  • Monthly Payment: $1,114.17

Note: All credits require application and approval. Rates shown are estimates - actual rates vary by specific taxing districts within the county.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Johnson County require property tax escrow accounts for borrowers with less than 20% down payment or upon borrower request. The lender collects 1/12 of the estimated annual property tax bill with each monthly mortgage payment and maintains these funds in an escrow account to pay taxes when due.

Property tax statements are mailed in April, with payments due in two installments: May 10th and November 10th (or the next business day if these fall on weekends or holidays). Lenders typically pay both installments directly to the Johnson County Treasurer's Office from the escrow account. Property owners should verify their lender receives and pays tax bills promptly, as the property owner remains ultimately responsible for timely payment regardless of escrow arrangements. Annual escrow analysis statements help homeowners track account balances and any shortage or surplus adjustments.

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 Johnson County for FY 2025-2026? A: Property taxes are due in two installments: May 10, 2026 and November 10, 2026. If these dates fall on a weekend or holiday, payment is due the next business day.

Q: What tax credits are available and do they require application? A: The primary credit is the Homestead Tax Credit for primary residences, which requires annual application and provides up to $45,000 reduction in assessed value plus caps annual assessment increases. Additional credits may be available for seniors, veterans, and disabled persons - all require separate applications with specific deadlines.

Q: How does the Homestead credit work? A: The Homestead credit provides two benefits: it reduces taxable assessed value by a set amount (currently up to $45,000) and caps annual assessment increases to protect against dramatic tax increases. You must file an application with the Johnson County Assessor's Office to qualify.

Q: How often are properties reassessed? A: Indiana conducts annual assessments, with trending adjustments applied to market values. Major reassessments occur periodically, with the most recent comprehensive reassessment affecting current tax bills.

Q: How do I appeal my property assessment? A: File an appeal with the Johnson County Property Tax Assessment Board of Appeals by the statutory deadline (typically July 15th following the assessment). You can also contact the Assessor's Office first to discuss informal review options.

Q: What are the penalties for late payment? A: Late payments incur interest and penalties. Contact the Johnson County Treasurer's Office for current penalty rates and payment options if you cannot meet the due dates.

Q: Can I pay property taxes online? A: Yes, Johnson County offers online payment options through the Treasurer's Office website. Check the official county website for accepted payment methods and any associated convenience fees.

Q: Why do tax rates vary within Johnson County? A: Different areas are served by different combinations of school districts, townships, municipalities, and special districts (libraries, parks, economic development), each with their own tax levies that combine to create your total effective rate.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
2025 Rates and Exemptionscityofjoshuatx.us
02
Important information regarding the March 2025 Johnson ...johnsoncountyiowa.gov
03
County
Tax Rates for County: Johnsonauditor.mo.gov
04
County
Property Taxes / Johnson County, Indianajohnsoncounty.in.gov
05
Tax Doc
Property Tax Assessment Appeals Processjohnsoncounty.in.gov
06
County
Johnson County Property Taxnacdashboard.nara.gov
07
Homestead Deduction Online Instructionsjohnsoncounty.in.gov
08
County
Available Deductions / Johnson County, Indianajohnsoncounty.in.gov
09
County
Johnson County: Property Tax Calculation - Treasurertreasurer.johnsoncounty41.us
10
Johnson - DLGFin.gov
All sources verified as of 2025 Tax Year

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