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Updated 2025 Tax Year

Hamilton County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
1.5157 per $100 of assessed value (2025 average), varies by school district and municipality
1st Due
May 10
2nd Due
Nov 10
Exemptions
5+ Available
Section 1

How Property Tax Works

Hamilton County, Indiana operates on a property tax system that funds essential local services including schools, public safety, infrastructure, and county operations. Property taxes are calculated based on assessed value multiplied by local tax rates, with the 2025 tax rate averaging 1.5157 per $100 of assessed value countywide. However, your actual tax rate will vary depending on your specific location within Hamilton County due to different school districts, municipal boundaries, and special taxing districts.

The county uses a true tax value assessment system where properties are assessed at market value, with assessments updated periodically. Property owners may be eligible for various tax credits that can significantly reduce their tax burden, but these credits require application and are not automatically applied. The Hamilton County Auditor's Office processes these applications and works with third-party vendors to help residents identify potential savings opportunities.

Section 2

What Makes Up Your Tax Bill

ComponentRate per $100Description
County General Fund$0.8563Core county services and operations
School DistrictsVaries by districtLocal school funding (included in total rate)
Municipal/TownshipVaries by locationCity/town services where applicable
Special DistrictsVaries by districtFire, library, parks, other special services
Total Average Rate$1.5157FY 2025 countywide average

Note: The total rate can reach $2.6159 per $100 assessment in some areas with additional levies. Your specific rate depends on which school district, municipality, township, and special taxing districts serve your property location. Contact the Hamilton County Auditor's Office for your exact rate.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Hamilton 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 are additional property tax bills issued when there are changes to a property's ownership, value, or use during the tax year. Common triggers include new construction completion, property improvements that increase assessed value, ownership transfers that remove previous tax credits, or corrections to assessment errors.

Supplemental taxes are calculated by applying the current tax rate to the change in assessed value, prorated for the portion of the tax year the change was in effect. For example, if you complete a $100,000 home addition in July, you would receive a supplemental bill for roughly half the year's taxes on that additional value. The Hamilton County Assessor's Office issues these bills as changes are identified and processed throughout the year.

Example Calculation

Example 1: $300,000 Home with Standard Homestead Credit

  • Assessed Value: $300,000
  • Standard Homestead Credit Applied: -$48,000 (varies by eligibility)
  • Net Taxable Value: $252,000
  • Tax Rate: 1.5157%
  • Annual Tax: $3,820
  • Monthly Escrow: $318

Example 2: $600,000 Home with Homestead Credit

  • Assessed Value: $600,000
  • Standard Homestead Credit Applied: -$48,000
  • Net Taxable Value: $552,000
  • Tax Rate: 1.5157%
  • Annual Tax: $8,367
  • Monthly Escrow: $697

Example 3: $1,000,000 Home with Multiple Credits

  • Assessed Value: $1,000,000
  • Standard Homestead + Additional Credits: -$65,000
  • Net Taxable Value: $935,000
  • Tax Rate: 1.5157%
  • Annual Tax: $14,172
  • Monthly Escrow: $1,181

Note: Credits shown require application and approval. Actual credits available depend on individual circumstances and current program limits.

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Section 5

Escrow & Property Taxes

Most mortgage lenders require property tax escrow accounts to ensure timely tax payments. Your lender collects monthly escrow payments along with your mortgage payment and pays your property taxes directly to Hamilton County when due. Escrow payments are calculated by dividing your annual tax bill by 12 months, often with an additional cushion as required by federal regulations.

Hamilton County property taxes are due in two installments: the first typically due in May and the second in November. Your lender will receive tax bills directly and make payments on your behalf. You should receive an annual escrow statement showing all deposits and payments, and any shortages or overages will be addressed through adjusted monthly payments or refunds. You can verify payments were made correctly by checking the Hamilton County Treasurer's online payment system or contacting their office directly.

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 Hamilton County for 2025? A: Property taxes are due in two installments - May and November. The specific due date for the first installment is typically in mid-May, with the second installment due in November.

Q: What tax credits are available and how do I apply? A: Common credits include the Standard Homestead Deduction for primary residences, Senior Citizen Tax Relief, Disability Credits, and Veteran Credits. All credits require application through the Hamilton County Auditor's Office. Applications must be filed by January 15th to affect the next tax bill.

Q: How does the Homestead Credit work? A: The Homestead Credit doesn't reduce your property's market value - instead, it limits assessment increases and provides deduction amounts that reduce your taxable assessed value. You must apply for this credit; it's not automatic and requires that you occupy the property as your primary residence.

Q: How often are properties reassessed? A: Indiana conducts general reassessments periodically, but properties may be reassessed annually based on sales data and market trends. You can appeal your assessment through the Hamilton County Assessor's Office if you believe it's inaccurate.

Q: What are the penalties for late tax payments? A: Late payments incur penalties and interest charges. The exact penalty structure is set by state law and varies depending on how late the payment is received.

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

Q: Why is my tax rate different from my neighbor's? A: Tax rates vary based on the specific combination of taxing districts that serve your property, including school district, municipality, township, and special districts like fire, library, or park districts.

Q: Do I need to reapply for tax credits every year? A: No, once approved, most credits continue automatically unless you change your deed, get married, change the property's use, or no longer meet eligibility requirements. However, you must initially apply for all credits - they are not automatically granted.

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