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Updated 2025 Tax Year

Marshall County
Property Tax Guide

Everything you need to know about property taxes in Marshall County, IL. 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
Varies by district combination - typically 2.5-4.5% effective rate depending on school district and municipal services
1st Due
Jun 1
2nd Due
Sep 1
Exemptions
5+ Available
Section 1

How Property Tax Works

Marshall County, Illinois operates under the state's property tax system to fund essential local services including schools, municipalities, townships, and special districts. Property taxes are the primary revenue source for local governments, supporting services such as public education, fire protection, road maintenance, and county operations. The effective tax rate in Marshall County varies by location within the county, as properties are subject to different combinations of overlapping taxing districts including school districts, municipalities, townships, fire protection districts, and other special purpose districts.

The Illinois Property Tax Extension Limitation Law (PTELL) governs how property taxes are calculated and limits annual increases in property tax extensions. Marshall County follows the state's assessment schedule, with properties typically assessed at 33.33% of fair market value for residential properties. Property owners should note that their actual tax rate depends on their specific location within the county, as each taxing district levies its own portion of the total tax bill. The county collector issues tax bills with payments typically due in two installments during the tax year.

Section 2

What Makes Up Your Tax Bill

Note: 2025 tax rates are not yet finalized. The following represents the general structure of property tax components in Marshall County. Actual rates vary by location within the county based on applicable taxing districts.

ComponentEstimated Rate RangeDescription
County General0.200% - 0.400%County operations, courthouse, sheriff
Township0.100% - 0.300%Road maintenance, general assistance
School Districts4.000% - 6.000%Education operations, debt service
Fire Protection0.200% - 0.500%Fire and emergency services
Library Districts0.100% - 0.300%Public library operations
Park Districts0.100% - 0.250%Recreation and park maintenance
Total Estimated Range4.700% - 7.750%Varies by property location

These rates apply to the Levy Year 2024 (payable in 2025). Property owners receive tax bills showing all applicable district rates for their specific location. Contact the Marshall County Clerk's office or check the county website for finalized 2025 rates and your property's specific taxing district combination.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Marshall 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 Marshall County are triggered by changes in property ownership, new construction, or improvements that increase a property's assessed value during the tax year. When these events occur, the county assessor calculates additional taxes based on the difference between the old and new assessed values, prorated for the portion of the tax year the change was in effect.

For example, if a property owner completes a $100,000 home addition in March, the supplemental tax would be calculated on the increased assessed value (approximately $33,330 for residential property) multiplied by the applicable tax rate, then prorated for the remaining months of the tax year. If the total tax rate is 6.0%, the annual additional tax would be approximately $2,000, with the supplemental bill covering about 9 months, resulting in a supplemental tax of roughly $1,500. Supplemental tax bills are issued separately from regular tax bills and have their own due dates, typically 30 days from the bill date.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (33.33%): $100,000
  • Less: General Homestead Exemption: $10,000
  • Net Taxable Value: $90,000
  • Tax Rate: 6.0% (varies by location)
  • Annual Tax: $5,400
  • Monthly Escrow: $450

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (33.33%): $200,000
  • Less: General Homestead Exemption: $10,000
  • Net Taxable Value: $190,000
  • Tax Rate: 6.0% (varies by location)
  • Annual Tax: $11,400
  • Monthly Escrow: $950

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (33.33%): $333,330
  • Less: General Homestead Exemption: $10,000
  • Net Taxable Value: $323,330
  • Tax Rate: 6.0% (varies by location)
  • Annual Tax: $19,400
  • Monthly Escrow: $1,617

Note: Homestead exemption requires application and is not automatic. Additional exemptions may be available for seniors, veterans, or disabled persons, all requiring separate applications.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Marshall County require borrowers to maintain an escrow account for property tax payments, especially for loans with less than 20% down payment. Lenders collect monthly escrow payments equal to 1/12 of the annual property tax bill, plus insurance premiums. The lender pays property taxes directly to Marshall County when bills are due, typically in two installments around June 1st and September 1st (exact dates vary and are printed on tax bills).

Lenders must provide annual escrow statements showing collections, payments, and account balances. If property taxes increase, lenders will adjust monthly escrow payments and may require additional funds to cover shortfalls. Property owners should verify that their lender pays taxes on time, as late payment penalties of 1.5% per month apply starting the day after the due date. Homeowners without escrow accounts are responsible for making payments directly to the Marshall County Collector's office by the due dates printed on their tax bills.

How HonestCasa Helps
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Section 6

Frequently Asked Questions

Q: When are property taxes due in Marshall County for 2025? A: Property taxes are typically due in two installments: June 1st and September 1st. However, exact due dates are printed on the front of tax bills and may vary. If bills are mailed late, the first installment may be due 30 days after the bill date.

Q: What tax credits are available and do I need to apply? A: The General Homestead Exemption reduces taxable assessed value by up to $10,000 and requires application. Additional exemptions may be available for seniors, veterans, disabled persons, and returning veterans - all requiring separate applications with specific deadlines. Contact the Marshall County Assessor's office for applications and deadlines.

Q: How does the Homestead Exemption work? A: The Homestead Exemption reduces your property's equalized assessed value by up to $10,000, which lowers your tax bill. This is NOT automatic - you must file an application with the county assessor's office. The exemption applies only to your primary residence.

Q: When are properties reassessed in Marshall County? A: Illinois follows a quadrennial (4-year) assessment cycle. Marshall County properties are typically reassessed every four years, with annual adjustments for market changes. Contact the assessor's office for your property's next scheduled reassessment year.

Q: How do I appeal my property assessment? A: Property assessment appeals must be filed with the Marshall County Board of Review within 30 days of receiving your assessment notice. Appeals can also be made to the Illinois Property Tax Appeal Board if you disagree with the Board of Review decision.

Q: What is the penalty for late payment? A: Late payments incur interest at 1.5% per month, effective the first day following the due date. This compounds monthly until the tax bill is paid in full.

Q: Can I pay property taxes online? A: Contact the Marshall County Collector's office to inquire about online payment options, accepted payment methods, and any associated convenience fees.

Q: Why do tax rates vary within Marshall County? A: Different areas of the county are served by different combinations of taxing districts (school districts, fire districts, municipalities, etc.). Each district sets its own levy, creating different total tax rates depending on your property's location and which districts serve your area.

Verified Sources

Backed by 10 Official Government Sources

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

01
County
Treasurer - Marshall County Governmentmarshallcountyillinois.gov
02
County
Marshall County Property Taxnacdashboard.nara.gov
03
County
Tax Extension - Marshall County Governmentmarshallcountyillinois.gov
04
Tax Doc
When do I have to pay my property taxes?tax.illinois.gov
05
County
Make a Payment - Marshall County Governmentmarshallcountyillinois.gov
06
County
PTAX-300 - Marshall County Governmentmarshallcountyillinois.gov
07
County
Assessor - Marshall County Governmentmarshallcountyillinois.gov
08
Tax Doc
35 ILCS 200/ Property Tax Code.ilga.gov
09
County
2023 Annual Financial Report - Marshall County Governmentmarshallcountyillinois.gov
10
County
Untitled - Marshall County Governmentmarshallcountyillinois.gov
All sources verified as of 2025 Tax Year

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