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Updated 2025 Tax Year

Macoupin County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
1.8% to 2.8% of market value, varies by taxing districts
1st Due
Jun 1
2nd Due
Sep 1
Exemptions
5+ Available
Section 1

How Property Tax Works

Macoupin County, Illinois operates under the state's property tax system to fund essential local services including schools, municipalities, townships, and county operations. Property taxes are calculated based on assessed values determined by the County Assessor, with assessments occurring on a four-year cycle as mandated by Illinois law. The effective tax rate in Macoupin County varies significantly by location due to different combinations of special taxing districts, but generally ranges from approximately 1.8% to 2.8% of market value.

Property owners should note that their actual tax rate depends on which taxing districts serve their specific property location. These may include school districts, municipalities, fire protection districts, library districts, and other special service areas. The Illinois Property Tax Extension Limitation Law (PTELL) governs how much taxing bodies can increase their levies annually, providing some protection against excessive tax increases while allowing for new construction growth and voter-approved rate increases.

Section 2

What Makes Up Your Tax Bill

ComponentApproximate Rate RangeDescription
County General0.300% - 0.500%County operations, courthouse, sheriff, health services
School Districts3.500% - 5.500%Elementary and high school districts (varies significantly)
Township0.100% - 0.300%Road maintenance, general assistance, assessor
Municipalities0.200% - 0.800%City/village services (where applicable)
Community College0.200% - 0.400%Lewis & Clark Community College District
Fire Protection0.100% - 0.400%Rural fire protection districts
Library District0.100% - 0.250%Public library services
Other Special Districts0.050% - 0.200%Park, cemetery, drainage districts

Note: These rates are estimates for planning purposes. Actual FY 2025-2026 levy rates vary by specific taxing district combinations and are not yet finalized. Contact the County Clerk's office at (217) 854-3214 for current levy information specific to your property location.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Macoupin 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 Macoupin County are additional property tax bills issued when there are changes to property ownership, improvements, or corrections to assessments during the current tax year. Common triggers include new construction completion, property splits or combinations, successful assessment appeals that increase value, and discovery of previously unreported improvements. The supplemental tax represents the difference between taxes already billed and what should have been billed based on the updated assessment.

For example, if you complete a $50,000 home addition in March and the assessor discovers it during a field review, a supplemental bill would be calculated on the added assessed value (typically $50,000 ÷ 3 = $16,667 in additional assessed value) multiplied by your property's tax rate, prorated for the remaining months in the tax year. If your total tax rate is 4.5%, the supplemental tax would be approximately $750 ($16,667 × 0.045) prorated from the completion date through the end of the tax year.

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: 4.2% (varies by district)
  • Annual Tax: $3,780
  • Monthly Escrow: $315

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: 4.5% (varies by district)
  • Annual Tax: $8,550
  • Monthly Escrow: $713

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (33.33%): $333,333
  • Less: General Homestead Exemption: -$10,000
  • Net Taxable Value: $323,333
  • Tax Rate: 4.8% (varies by district)
  • Annual Tax: $15,520
  • Monthly Escrow: $1,293

Note: Homestead exemption requires annual application and is not automatic. Tax rates vary significantly by taxing district location within the county.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Macoupin County require property tax escrow accounts to ensure timely tax payments. Lenders collect monthly escrow payments equal to your annual property tax divided by 12, plus a cushion typically equal to 2-3 months of payments. The lender pays your property taxes directly to the County Treasurer when bills are due, usually in two installments during the year.

Property owners should verify that their lender has current tax information, especially after assessment appeals or property improvements that might trigger supplemental taxes. Contact your lender immediately if you receive supplemental tax bills, as these may not be included in your regular escrow payments. The County Treasurer's office at (217) 854-4014 can provide tax payment history to help you confirm your lender is making proper payments. If your loan is paid off, you'll need to establish a personal savings plan to ensure funds are available for the semi-annual tax payments.

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 Macoupin County for the current fiscal year? A: Property taxes are typically due in two installments: first installment due June 1st and second installment due September 1st. However, if tax bills are issued late, the first installment is due 30 days after the bill date, with the second installment generally due August 1st.

Q: What tax credits are available and do I need to apply? A: The primary credit available is the General Homestead Exemption, which reduces your property's equalized assessed value by up to $10,000. This credit is NOT automatic and requires an annual application using form PTAX-340. Senior citizens may qualify for additional exemptions including the Senior Citizens Assessment Freeze.

Q: How does the Homestead Exemption work? A: The General Homestead Exemption reduces your property's assessed value by up to $10,000, not your market value. You must occupy the property as your principal residence and have an ownership interest. Application must be filed annually with the County Assessor's office, and the exemption is not retroactive if you miss the deadline.

Q: When are properties reassessed in Macoupin County? A: Macoupin County follows Illinois' four-year assessment cycle. All properties are reassessed every four years, with annual reviews for properties that have sold or been improved. Assessment notices are typically mailed in late spring/early summer of reassessment years.

Q: What are the penalties for late property tax payments? A: Late payments incur penalties and interest charges. Contact the County Treasurer's office at (217) 854-4014 for current penalty rates and payment options if your taxes are overdue.

Q: Can I pay my property taxes online? A: Contact the Macoupin County Treasurer's office at (217) 854-4014 to inquire about online payment options and accepted payment methods. Payment options and processing may vary.

Q: How do special taxing districts affect my tax rate? A: Your total tax rate is the sum of all taxing districts serving your property location. These may include school districts, fire protection districts, library districts, and municipal taxes. Properties in incorporated areas typically have higher rates due to additional municipal services.

Q: How can I appeal my property assessment? A: Assessment appeals must be filed with the Macoupin County Board of Review within 30 days of receiving your assessment notice. Contact the County Assessor's office for appeal forms and procedures. Further appeals can be made to the Illinois Property Tax Appeal Board if unsatisfied with the local decision.

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