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Updated 2025 Tax Year

Hardin County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
Base county rate 0.502473%, total effective rates typically 1.5-3.5% (varies by taxing district)
1st Due
Jun 1
2nd Due
Sep 1
Exemptions
4+ Available
Section 1

How Property Tax Works

Hardin County, Illinois operates under the state's property tax system, which serves as the primary funding mechanism for local government services including schools, county operations, townships, and various special districts. Property taxes in Hardin County fund essential services such as education, public safety, infrastructure maintenance, and local government operations. The county follows Illinois assessment practices where properties are assessed at 33.33% of fair market value for residential properties.

The effective property tax rate in Hardin County varies significantly by location within the county due to overlapping taxing districts. For the 2025 levy year, the base county rate is 0.502473%, but total effective rates typically range from 1.5% to 3.5% depending on which school districts, municipalities, townships, fire protection districts, and other special taxing districts serve your specific property location. Property owners should note that their actual tax rate will depend on the combination of all taxing bodies that have jurisdiction over their property.

Section 2

What Makes Up Your Tax Bill

ComponentRate RangeDescription
County General0.502473%Base county operations and services (FY 2025)
School Districts1.2% - 2.8%Local school funding, varies by district
Townships0.1% - 0.3%Township road maintenance and services
Municipalities0.3% - 0.8%City/village services where applicable
Fire Protection0.1% - 0.4%Fire and emergency services
Library Districts0.05% - 0.15%Public library funding
Other Special Districts0.05% - 0.3%Drainage, parks, and other local services

Total Effective Rate Range: 1.5% - 3.5% (varies by property location)

Note: These rates apply to the 2025 levy year and are based on equalized assessed value. Your specific rate depends on which combination of taxing districts serve your property address.

Section 3

When Are Property Taxes Due?

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

First Installment
Jun 1
Delinquent after Dec 10
Second Installment
Sep 1
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 Hardin County are additional property tax assessments that occur when there are mid-year changes to a property that affect its assessed value. Common triggers include new construction completion, property improvements, ownership transfers that prompt reassessment, or corrections to previous assessments. These supplemental bills are calculated using the same tax rates that apply to regular property taxes, but are prorated based on the number of months remaining in the tax year when the change occurred.

For example, if you complete a $50,000 home addition in March and your total effective tax rate is 2.5%, the supplemental assessment would be calculated as: ($50,000 × 33.33% assessment ratio = $16,665 assessed value) × 2.5% tax rate × (9 months remaining ÷ 12 months) = approximately $312 in supplemental taxes due.

Example Calculation

Example 1: $300,000 Property Value

  • Market Value: $300,000
  • Assessed Value (33.33%): $99,990
  • Homeowner Exemption Applied: -$10,000 (requires application)
  • Net Taxable Assessed Value: $89,990
  • Tax Rate (example district): 2.2%
  • Annual Tax: $1,978
  • Monthly Escrow: $165

Example 2: $600,000 Property Value

  • Market Value: $600,000
  • Assessed Value (33.33%): $199,980
  • Homeowner Exemption Applied: -$10,000 (requires application)
  • Net Taxable Assessed Value: $189,980
  • Tax Rate (example district): 2.5%
  • Annual Tax: $4,750
  • Monthly Escrow: $396

Example 3: $1,000,000 Property Value

  • Market Value: $1,000,000
  • Assessed Value (33.33%): $333,300
  • Homeowner Exemption Applied: -$10,000 (requires application)
  • Net Taxable Assessed Value: $323,300
  • Tax Rate (example district): 2.8%
  • Annual Tax: $9,052
  • Monthly Escrow: $754

Note: All tax credits require separate applications and are not automatically applied.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Hardin County require borrowers to maintain an escrow account for property tax payments, particularly for loans with less than 20% down payment. Your lender will collect monthly escrow payments equal to approximately 1/12th of your annual property tax bill plus insurance premiums. The lender pays your property taxes directly to the Hardin County Treasurer when installments are due.

Property taxes in Hardin County are typically paid in two installments: the first installment is due by September 30th, and the second installment is due by March 31st of the following year. Your lender will receive tax bills directly and make payments from your escrow account. It's important to verify that your lender has the correct property identification number (PIN) and mailing address to ensure timely receipt of tax bills. You should receive an annual escrow analysis from your lender showing the previous year's payments and any adjustments needed for the coming year.

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 Hardin County for the current fiscal year? A: Property taxes are due in two installments: first installment by September 30th and second installment by March 31st of the following year. For the 2025 tax year, these dates apply to taxes based on the 2025 assessment.

Q: What tax credits are available and do they require applications? A: The primary tax credit is the Homeowner Exemption, which reduces your equalized assessed value by up to $10,000. This credit requires a separate application to be filed with the County Assessor's office and is not automatically applied. Senior citizens may qualify for additional credits that also require applications.

Q: How does the Homestead Exemption work? A: The Homestead Exemption in Illinois limits annual increases in your property's assessed value to 10% or the Consumer Price Index, whichever is less. This caps assessment growth rather than reducing market value, and you must file an application to receive this protection.

Q: How often are properties reassessed in Hardin County? A: Illinois law requires property to be reassessed every four years, though the County Assessor may conduct annual reviews for properties that have changed significantly due to improvements or market conditions.

Q: What are the penalties for late property tax payments? A: Late payments incur interest charges and penalties. Interest typically accrues at 1.5% per month on unpaid balances, and additional penalties may apply for payments more than 30 days late.

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

Q: How do special district taxes affect my bill? A: Your total property tax includes charges from all taxing districts that serve your property, including school districts, fire protection districts, library districts, and others. These vary by location within the county and can significantly impact your total effective tax rate.

Q: What is the deadline to apply for the Homeowner Exemption? A: Applications for the Homeowner Exemption must typically be filed by the first Tuesday in April with the County Assessor's office. Contact the Assessor's office for specific deadlines and required documentation.

Q: How can I appeal my property assessment? A: Property assessment appeals must be filed with the Hardin County Board of Review, typically between early July and late August. If unsatisfied with the Board of Review decision, you can appeal to the Illinois Property Tax Appeal Board.

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