Naperville Property Tax Estimator
Calculate your annual tax bill, see how it breaks down by taxing body, and project costs over 5 years — for both Will County and DuPage County portions of Naperville.
Estimated Annual Tax
$—
Effective rate: —%
Monthly Escrow
$—
Add to mortgage payment
Equalized Assessed Value
$—
After exemptions
Tax Levy Breakdown
DuPage County
Approximate rates per $100 EAV, based on 2024–2025 levies. Actual rates vary by exact parcel location.
| Taxing Body | Rate per $100 | % of Bill | Annual $ |
|---|---|---|---|
| Total | — | 100% | — |
How You Compare
Your Estimate
$—
—% effective
Illinois Median
$7,578
~2.07% effective
National Median
$2,969
~0.99% effective
Naperville Median
$9,461
~2.07% effective
5-Year Projection
Assuming 3.0% annual home appreciation and 3.0% levy increase.
| Year | Home Value | EAV (net) | Annual Tax | Monthly | YoY Change |
|---|
How This Calculator Works
1
Market Value
Start with your purchase price as the estimated market value.
2
Assessed Value
Multiply market value by the assessment ratio (default 33.33% for IL residential).
3
EAV
Apply the county equalization factor, then subtract any exemptions (homestead, senior, etc.).
4
Tax Bill
Multiply EAV ÷ 100 × the combined tax rate from all overlapping taxing bodies.
This calculator provides estimates only. Actual tax bills depend on your assessor's determination, final levy amounts, and equalization factors set each spring. Always verify with your county assessor. Sources: Ownwell, NCTV17, Illinois Policy Institute.
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