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Updated 2025 Tax Year

Tazewell County
Property Tax Guide

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

9 Official Sources
8 min read
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Quick Facts
Tax Rate
Varies by district - base rate plus school, municipal, fire, and park district additions
1st Due
Sep 1
2nd Due
Nov 1
Exemptions
4+ Available
Section 1

How Property Tax Works

Tazewell County, Illinois operates under a property tax system that funds essential local services including schools, municipal operations, fire protection, parks, and county government. The county's property tax structure follows Illinois state law, with properties assessed at approximately 33.23% of market value based on recent sales data from 2022-2024. The effective tax rate varies significantly across different areas within the county due to the numerous special taxing districts, including school districts, municipalities, fire protection districts, and park districts that serve different geographic areas.

Property taxes in Tazewell County are collected twice yearly, with the first installment typically due September 1st and the second installment due November 1st. The county operates under Illinois' Property Tax Extension Limitation Law (PTELL), which limits annual tax levy increases for most local governments. Property owners should note that tax rates and bills can vary considerably depending on which combination of taxing districts serve their specific property location within the county.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
County Rate0.352%Base Tazewell County levy (FY 2025 tentative rate)
School DistrictsVariesElementary and high school district rates vary by location
MunicipalVariesCity/village rates apply only within incorporated areas
TownshipVariesTownship government and road district levies
Fire ProtectionVariesFire district rates vary by service area
Park DistrictsVariesRecreation and park district levies where applicable
Library DistrictsVariesPublic library district rates where applicable
Other Special DistrictsVariesDrainage, cemetery, and other special purpose districts

Note: The 0.352% county rate represents only a portion of the total tax bill. Total effective rates typically range from 2-4% of market value depending on the specific combination of taxing districts serving each property location within Tazewell County.

Section 3

When Are Property Taxes Due?

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

First Installment
Sep 1
Delinquent after Dec 10
Second Installment
Nov 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 Tazewell County are additional property tax assessments that occur outside the regular annual tax cycle. These are most commonly triggered by new construction, substantial improvements to existing properties, or changes in property ownership that reveal previously unreported improvements. When new construction is completed or significant renovations increase a property's assessed value, the county assessor calculates the additional tax owed from the date the improvement was substantially completed until the end of the current tax year.

For example, if a homeowner completes a $100,000 addition to their home in March, and the improvement increases the assessed value by $33,230 (at the 33.23% assessment ratio), the supplemental tax would be calculated on this additional assessed value prorated from March through December. The supplemental tax bill would apply the same combined tax rate from all applicable taxing districts that appears on the regular annual tax bill.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (33.23%): $99,690
  • Less Homeowner Exemption: -$10,000 (if applied for)
  • Net Taxable Value: $89,690
  • Estimated Annual Tax (2.5% effective rate): $2,242
  • Monthly Escrow: $187

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (33.23%): $199,380
  • Less Homeowner Exemption: -$10,000 (if applied for)
  • Net Taxable Value: $189,380
  • Estimated Annual Tax (2.8% effective rate): $5,302
  • Monthly Escrow: $442

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (33.23%): $332,300
  • Less Homeowner Exemption: -$10,000 (if applied for)
  • Net Taxable Value: $322,300
  • Estimated Annual Tax (3.2% effective rate): $10,314
  • Monthly Escrow: $859

Note: Homeowner exemption requires annual application. Effective rates vary by location within the county based on local taxing districts.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Tazewell County require borrowers to maintain an escrow account for property tax payments, particularly when the loan-to-value ratio exceeds 80%. The lender collects monthly escrow payments along with the principal and interest payment, depositing these funds into a separate escrow account. Based on the county's payment schedule of September 1st and November 1st, lenders typically make the tax payments directly to the Tazewell County Treasurer on behalf of the property owner.

Lenders are required to provide annual escrow statements showing the account activity and any adjustments needed for the coming year. Property owners should review these statements carefully, as tax increases or decreases will affect the monthly escrow payment. If property taxes increase due to reassessment or rising tax rates, the lender may require additional monthly payments or a lump sum payment to cover any escrow shortage. Property owners can verify that payments were made correctly by checking with the Tazewell County Treasurer's office or accessing online payment records.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
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Section 6

Frequently Asked Questions

Q: When are property taxes due in Tazewell County for the current fiscal year? A: Property taxes are due in two installments: September 1st for the first installment and November 1st for the second installment. Late payments incur interest and penalties.

Q: What tax credits are available and do I need to apply? A: The primary tax benefit is the Homeowner Exemption, which reduces assessed value by up to $10,000. This requires annual application and is not automatic. Other exemptions may be available for seniors, disabled veterans, or disabled persons, but all require separate applications with specific deadlines.

Q: How does the Homestead Exemption work? A: Illinois offers a Homeowner Exemption (not Homestead) that reduces the equalized assessed value by up to $10,000 for owner-occupied residential properties. This must be applied for annually and directly reduces the taxable assessed value, not the market value.

Q: How often are properties reassessed in Tazewell County? A: Properties are reassessed every four years, with the assessment based on market value as determined by recent sales data. The current assessments use sales from 2022, 2023, and 2024.

Q: How can I appeal my property assessment? A: Property owners can appeal their assessment to the Tazewell County Board of Review. Appeals must be filed within specific deadlines, typically within 30 days of receiving the assessment notice.

Q: What happens if I pay my taxes late? A: Late payments incur interest and penalties. If taxes remain unpaid, they are subject to tax sale, which occurred on October 28, 2024, for delinquent taxes. Additional interest and penalties are added by tax buyers.

Q: Can I pay my property taxes online? A: Contact the Tazewell County Treasurer's office for current online payment options and accepted payment methods.

Q: Why do tax rates vary within Tazewell County? A: Tax rates vary because properties are served by different combinations of taxing districts including school districts, municipalities, fire districts, park districts, and other special districts. Each district sets its own levy, creating different total tax rates across the county.

Q: What determines the amount of my tax bill? A: Your tax bill is determined by the total amount levied by all local taxing districts serving your property location, including school districts, county government, municipal government (if applicable), and other special districts.

Verified Sources

Backed by 9 Official Government Sources

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

01
County
2025 Tazewell County Tentative Multiplier Announcedillinois.gov
02
Tax Doc
Proposed Tax Levy 2025 - City of Washingtonci.washington.il.us
03
Chairman David Zimmerman Kim D. Joesting, Dist. 1tazewell-il.gov
04
County
Real Estate Taxes - Tazewell County, Illinoistazewell-il.gov
05
~ Finance Budget Committee ~tazewell-il.gov
06
County
Tazewell County Board of Review Rules and Procedurestazewell-il.gov
07
Comprehensive-Land-Use-Plan-2011. ...tazewell-il.gov
08
Tax Doc
A.) Read & complete PTAX-230 Formtazewell-il.gov
09
State
BASIC FINANCIAL STATEMENTS AND SUPPLEMENTAL ...tazewell-il.gov
All sources verified as of 2025 Tax Year

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