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Updated 2025 Tax Year

Jersey County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
1.5%-3.5% of market value (varies by taxing district combination)
1st Due
Jun 1
2nd Due
Sep 1
Exemptions
5+ Available
Section 1

How Property Tax Works

Jersey County, Illinois operates under Illinois property tax law, which uses an assessed valuation system to fund essential local services including schools, county government, road maintenance, and emergency services. Property taxes in Jersey County are calculated based on the assessed value of your property multiplied by the local tax rate, which varies significantly by location within the county due to different combinations of taxing districts.

The county applies a 33.33% assessment ratio (equalization factor) to market value to determine assessed value. Effective tax rates in Jersey County vary by taxing district but generally range from approximately 1.5% to 3.5% of market value, depending on your specific location and the combination of school districts, municipalities, fire districts, and other special taxing districts that serve your property. All property owners should verify their specific taxing districts, as rates can differ substantially even between neighboring properties.

Section 2

What Makes Up Your Tax Bill

Based on available 2024 levy data, here are sample tax rate components for Jersey County (rates vary by specific taxing district):

ComponentRate (per $100 EAV)Description
County Corporate$0.2777General county operations and services
County I.M.R.F.$0.1164Illinois Municipal Retirement Fund
Road and Bridge$0.0000County road maintenance (varies by district)
Police Protection$0.0688Law enforcement services
School DistrictsVariesElementary and high school districts (major component)
Fire ProtectionVariesFire department services by district
Library DistrictVariesPublic library services where applicable
TownshipVariesTownship government services

Note: These rates apply to the 2024 levy year (taxes payable in 2025). Your actual total tax rate depends on which specific combination of taxing districts serve your property location. School district levies typically represent the largest portion of your total tax bill.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Jersey 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 Jersey County are additional tax bills issued when property ownership changes or new construction is completed during the tax year. These occur because Illinois assesses property as of January 1st each year, but ownership changes and improvements happen throughout the year.

Supplemental taxes are calculated by determining the difference between the new assessed value and the previous assessed value, then applying the current tax rate to that difference. The tax is prorated based on the number of months remaining in the tax year after the change occurred. For example, if you purchase a home in July that was previously under-assessed, you would receive a supplemental tax bill covering July through December for the difference in assessed value. New construction supplements are issued once the county assessor determines the completed value of improvements and applies the current year's tax rates to the increased assessed value.

Example Calculation

Here are three property tax calculations for Jersey County using a sample combined tax rate of 2.85% (actual rates vary by location):

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (33.33%): $100,000
  • Less: General Homestead Exemption: -$10,000
  • Equalized Assessed Value: $90,000
  • Annual Tax (2.85% rate): $2,565
  • Monthly Escrow: $214

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (33.33%): $200,000
  • Less: General Homestead Exemption: -$10,000
  • Equalized Assessed Value: $190,000
  • Annual Tax (2.85% rate): $5,415
  • Monthly Escrow: $451

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (33.33%): $333,300
  • Less: General Homestead Exemption: -$10,000
  • Equalized Assessed Value: $323,300
  • Annual Tax (2.85% rate): $9,214
  • Monthly Escrow: $768

Important: The General Homestead Exemption requires application and is not automatically applied. Veterans' exemptions and other credits may also be available with proper application.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Jersey County require borrowers to maintain an escrow account for property tax payments. Your lender collects monthly escrow payments along with your mortgage payment, then pays your property taxes directly to Jersey County when they become due. Lenders typically collect 1/12th of your annual tax bill each month, plus an additional cushion amount as required by federal law.

Jersey County property taxes are due in two installments: the first installment is generally due June 1st, and the second installment is due September 1st (though the second installment may be due in August in some cases). Your lender will receive tax bills directly from the county and make payments on your behalf. You should verify that your lender has the correct mailing address with the Jersey County Treasurer's office and review your annual escrow analysis to ensure adequate funds are being collected. If your tax assessment changes significantly, you may need to adjust your monthly escrow payment to avoid shortages.

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 Jersey County for 2025? A: Property taxes are typically due in two installments: June 1st and September 1st. If the first installment is paid late, it becomes due 30 days after the bill date. The second installment may be due in August depending on billing schedules.

Q: What homestead exemptions are available and do I need to apply? A: The General Homestead Exemption reduces your assessed value by up to $10,000 and requires application. Senior citizens may qualify for additional exemptions. Veterans with service-connected disabilities may qualify for exemptions ranging from $2,500 (30-49% disability) to higher amounts. All exemptions require application and are not automatic.

Q: How does the homestead exemption work? A: The homestead exemption reduces your Equalized Assessed Value (EAV) by up to $10,000, which directly reduces your tax bill. This is a reduction in assessed value, not a credit against taxes owed. You must apply for this exemption - it is not automatically granted.

Q: What happens if I pay my property taxes late? A: Late payments incur penalties and interest charges. After the due date, delinquent taxes must be paid at the County Treasurer's office. Continued non-payment can eventually lead to tax sale proceedings.

Q: How often are properties reassessed in Jersey County? A: Illinois requires counties to reassess property values periodically. Jersey County follows the state's assessment cycle, with the equalization factor applied annually. The 2024 equalization factor was set at 33.33%.

Q: Can I pay my property taxes online? A: Contact the Jersey County Treasurer's office directly for current online payment options and accepted payment methods. Payment locations and methods may vary.

Q: How do I appeal my property assessment? A: Property assessment appeals must be filed with the Jersey County Board of Review within the specified appeal period, typically after assessment notices are mailed. Contact the County Assessor's office for current appeal deadlines and procedures.

Q: Why do property tax rates vary within Jersey County? A: Tax rates vary because different areas are served by different combinations of school districts, fire districts, library districts, and municipalities. Each taxing district sets its own levy, creating different total tax rates depending on your property's location.

Q: Are there property tax credits for seniors or disabled persons? A: Yes, Illinois offers various exemptions for seniors and disabled persons, including the Senior Citizens Assessment Freeze Homestead Exemption and Disabled Person's Homestead Exemption. These require application using forms such as PTAX-343. Contact the County Assessor for eligibility requirements and application deadlines.

Q: What is PTELL and how does it affect my taxes? A: The Property Tax Extension Limitation Law (PTELL) limits the annual increase in property tax extensions for most taxing districts. This law helps control property tax growth but doesn't prevent increases due to new construction or changes in your property's assessed value relative to others in the district.

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