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Updated 2025 Tax Year

Greene County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
Approximately 2.62% county-wide for 2025, varies significantly by school district and municipality
1st Due
Jun 1
2nd Due
Sep 1
Exemptions
5+ Available
Section 1

How Property Tax Works

Greene County, Illinois operates under a property tax system that funds essential local services including schools, townships, municipalities, and county operations. Property taxes are the primary revenue source for local government services such as education, public safety, infrastructure maintenance, and social services. The county follows Illinois state law including the Property Tax Extension Limitation Law (PTELL) which limits annual tax levy increases.

The effective property tax rate in Greene County varies significantly by location within the county due to different combinations of special taxing districts. While the projected county-wide rate for 2025 is approximately 2.62%, individual property owners may pay different rates depending on their specific school district, municipality, township, and other special districts. Property assessments in Greene County are conducted by the County Assessor, with residential properties typically assessed at 33.33% of fair market value as required by Illinois law.

Actual tax rates vary considerably throughout Greene County based on the specific taxing districts that serve each property, including school districts, fire protection districts, library districts, and municipal boundaries. Property owners should verify their specific tax rate and applicable districts with the Greene County Clerk's office.

Section 2

What Makes Up Your Tax Bill

Based on available data for Levy Year 2025, Greene County property tax rates include the following components:

ComponentRateDescription
County General0.0070010Basic county operations and services
TownshipVariesRoad maintenance, general assistance (varies by township)
School DistrictsVariesEducational services, facilities, transportation
MunicipalVariesCity/village services where applicable
Fire ProtectionVariesFire and emergency services by district
LibraryVariesPublic library services by district
Special DistrictsVariesDrainage, park, cemetery, and other special purposes
Total Rate Range~2.62%Combined rate varies by location and districts

Note: The total gross tax rate of 2.62460% applies to properties within specific taxing district combinations. Individual properties may have different total rates depending on their location within Greene County and the specific combination of taxing districts that serve the property. These rates apply to the 2025 levy year and are subject to annual adjustment based on local government budgets and PTELL limitations.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Greene 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 Greene County are additional property tax bills issued when there are changes to a property's assessed value or ownership during the tax year. The most common triggers include new construction, major improvements, property transfers, or corrections to the original assessment that increase the taxable value.

When supplemental taxes are issued, they are calculated by applying the current tax rate to the difference between the new assessed value and the original assessed value, prorated for the portion of the tax year remaining. For example, if a property undergoes a $50,000 improvement completed in March, and the local tax rate is 2.62%, the supplemental tax would be approximately $1,310 ($50,000 × 0.0262) prorated for the remaining months of the tax year.

Supplemental tax bills are typically mailed within 60-90 days of the triggering event and have separate due dates from regular property tax installments. Property owners have the same appeal rights for supplemental assessments as they do for regular assessments, with deadlines typically falling within 30 days of the supplemental bill date.

Example Calculation

The following examples show estimated annual property taxes for Greene County properties, assuming the gross tax rate of approximately 2.62% and standard assessment practices. Note that actual rates vary by specific taxing districts:

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (33.33%): $100,000
  • Less: Homeowner Exemption (if applied): -$10,000
  • Net Taxable Value: $90,000
  • Annual Tax (2.62% rate): $2,358
  • Monthly Escrow Estimate: $196

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (33.33%): $200,000
  • Less: Homeowner Exemption (if applied): -$10,000
  • Net Taxable Value: $190,000
  • Annual Tax (2.62% rate): $4,978
  • Monthly Escrow Estimate: $415

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (33.33%): $333,333
  • Less: Homeowner Exemption (if applied): -$10,000
  • Net Taxable Value: $323,333
  • Annual Tax (2.62% rate): $8,471
  • Monthly Escrow Estimate: $706

Important: The Homeowner Exemption requires annual application and is not automatically applied. Actual tax rates vary significantly by location within Greene County based on specific taxing districts.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Greene County require borrowers to maintain an escrow account for property taxes, especially when the loan-to-value ratio exceeds 80%. The lender collects monthly escrow payments along with principal and interest, then pays property taxes directly to Greene County when bills are due.

Greene County property taxes are typically due in two installments: the first installment is due June 1st, and the second installment is due September 1st. However, if tax bills are mailed after May 1st, the first installment becomes due 30 days after the bill date. Lenders typically pay these installments on behalf of escrowed borrowers and provide annual escrow statements showing payments made and account balances.

Property owners with escrowed accounts should verify that their lender has current mailing addresses and contact information with the Greene County Collector. While lenders handle payment responsibilities, property owners remain ultimately responsible for ensuring taxes are paid timely. Escrow accounts are analyzed annually, and monthly payments may be adjusted based on actual tax bills and account balances to maintain adequate reserves.

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 Greene County property taxes due for the current fiscal year? A: Property taxes are typically due in two installments: June 1st and September 1st. If bills are mailed late (after May 1st), the first installment is due 30 days from the bill date.

Q: What tax credits are available, and do I need to apply? A: The primary tax benefit is the Homeowner Exemption, which reduces your property's Equalized Assessed Value (EAV) by up to $10,000. This exemption requires annual application and is not automatic - you must file with the County Assessor's office.

Q: How does the Homestead Exemption work? A: Illinois offers a General Homestead Exemption that reduces your home's assessed value by up to $10,000 for property tax calculation purposes. This exemption must be applied for annually and only applies to your primary residence. Additional exemptions may be available for seniors, veterans, or disabled persons, each requiring separate applications.

Q: What are the penalties for late property tax payments? A: Greene County charges interest and penalties on delinquent property taxes. Interest typically accrues monthly, and additional penalties may apply. Properties with delinquent taxes may eventually be subject to tax sale proceedings.

Q: How often are properties reassessed in Greene County? A: Illinois law requires counties to reassess properties at least once every four years. Greene County follows this cycle, with mass reappraisals conducted periodically to ensure assessments reflect current market values.

Q: How can I appeal my property assessment? A: Property owners may appeal their assessment to the Greene County Board of Review typically between July and September following the assessment year. Appeals must be filed within specific deadlines and should include supporting evidence of the property's market value.

Q: Can I pay my property taxes online? A: Contact the Greene County Collector's office to inquire about online payment options and accepted payment methods. Many Illinois counties offer online payment systems for property taxes.

Q: Why do tax rates vary within Greene County? A: Tax rates differ based on the combination of taxing districts serving each property, including school districts, fire districts, municipalities, townships, and special districts. Each district sets its own levy within legal limits, creating varying total rates across the county.

Q: What special districts might affect my property taxes? A: Common special districts in Greene County may include fire protection districts, library districts, drainage districts, and park districts. Each property is served by a unique combination of these districts, which determines the total tax rate applied to that property.

Q: Where can I get help with property tax questions? A: Contact the Greene County Clerk's office for general property tax information, the County Assessor for assessment questions, or the County Collector for payment and billing inquiries. The Illinois Department of Revenue website also provides statewide property tax information and forms.

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