Illinois Property Tax Calculator
Calculate Illinois property tax by county. IL avg ~2.27% — second-highest in the US.
Did this tool work for you?
How to use this calculator
- 1
Illinois property is assessed at 33.33% of fair market value (equalized assessed value = EAV).
- 2
Your tax bill = EAV × combined tax rate (school district + county + city + other districts).
- 3
General Homestead Exemption reduces EAV by $10,000 for owner-occupied homes.
- 4
Senior Homestead Exemption: additional $8,000 EAV reduction for qualifying seniors 65+.
Frequently asked questions
Why are Illinois property taxes so high?
Illinois relies heavily on property taxes to fund schools — unlike states with strong state-level school funding. Combined with high municipal pension obligations, effective rates average ~2.27%, second only to New Jersey nationally. Chicago metro rates reflect multiple overlapping taxing districts.
How is IL property tax calculated?
Illinois has the second-highest property taxes in the US (~2.27% avg effective rate). Rates range from ~1.98% (Sangamon) to ~2.76% (Lake/Winnebago). Assessed at 33.33% of fair market value.
Illinois Property Tax Calculator 2024
How to use the illinois property tax
Use this illinois property tax to estimate your annual property tax bill by county. Illinois property tax rates vary by county — enter your home value and select your county to get an accurate estimate.
Illinois property tax rates by county
Enter your property's assessed value (usually close to market value, set by your county assessor). Select your county to apply its effective rate. The calculator shows your estimated annual tax, monthly escrow amount, and effective rate. Rates shown reflect 2026 estimates from the Tax Foundation and state DOR data.
Illinois property tax exemptions and deductions
Property taxes in Illinois fund local schools, roads, emergency services, and county government. Homestead exemptions can reduce your taxable value — many Illinois counties offer exemptions for primary residences, seniors, and veterans. Contact your local county assessor to apply. Tax bills are typically due in two installments per year.
IL property tax overview
Illinois has the second-highest property taxes in the US (~2.27% avg effective rate). Rates range from ~1.98% (Sangamon) to ~2.76% (Lake/Winnebago). Assessed at 33.33% of fair market value.
Learn more from an authoritative source:
InvestopediaCompound Interest Calculator
Calculate how your investment or savings grows over time with the power of compounding.
Simple Interest Calculator
Calculate simple interest, total amount, and interest earned using principal, rate, and time.
ROI Calculator
Calculate return on investment, net profit, and annualised ROI for any investment.
CAGR Calculator
Calculate Compound Annual Growth Rate (CAGR) for investments, revenue, or any metric over time.
Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →