Exterior of a well prepared home in a Naperville neighborhood ready for sale

Naperville Property Tax & Net-Proceeds Calculator

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. And if you are selling, estimate what you would walk away with after payoff, taxes, and selling costs.
Estimate your net proceeds
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 BodyRate per $100% of BillAnnual $
Total100%

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
Your Estimate
$—
Naperville Median
$9,461
Illinois Median
$7,578
National Median
$2,969

5-Year Projection

Assuming 3.0% annual home appreciation and 3.0% levy increase.

YearHome ValueEAV (net)Annual TaxMonthlyYoY 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.

What you’ll net when you sell a Naperville home


The Dan Firks Team helps Naperville sellers estimate their net proceeds before they list. Net proceeds are what is left after the sale closes: your sale price minus your mortgage payoff, the Illinois transfer tax, the agent commission, your closing costs, and any prep. For most relocating sellers, that figure, not the headline sale price, is what funds the next home.

The property-tax number this calculator produces is part of the picture, because property taxes are prorated at closing. Pair it with your payoff and your selling costs and you have a working estimate of what you would keep. A few things to keep in mind:

  • Commission is negotiable and quoted as a percentage, so use your actual rate rather than a rule of thumb.
  • Illinois charges a real estate transfer tax at closing. Confirm the current rate that applies to your sale.
  • Prep, staging, and any buyer concessions come off the top as well.

To turn the estimate into a real number for your home, request a home valuation from The Dan Firks Team.

From your property-tax estimate to your net proceeds


A national calculator does not know Naperville. It cannot tell you how your bill splits across the local taxing bodies, or whether your home sits in the DuPage County or the Will County portion of the city. This page does, which is why the property-tax estimate above feeds a more accurate net-proceeds picture for a Naperville sale.

Here is how the pieces connect at closing. Your prorated property tax and any escrow balance settle up. Your mortgage payoff comes out. The Illinois transfer tax and your share of closing costs are deducted. The agent commission is paid from the proceeds. What remains is your net. Some sellers also owe capital gains tax, though many primary residences qualify for an exclusion. Because that depends on your gain and your situation, confirm it with a tax professional rather than a general rule.

For the full list of seller costs, see what it costs to sell a home in Naperville. To see the whole picture of selling here, start at our guide to selling a home in Naperville.

Net proceeds and Naperville taxes: FAQ


What are net proceeds when you sell a home?

Net proceeds are what you keep after the sale closes: your sale price minus your mortgage payoff, agent commission, closing costs, the Illinois transfer tax, and any prep. It is the figure that actually funds your next home, and it is usually well below the headline sale price.

How do I calculate my net proceeds in Naperville?

Start with your expected sale price, then subtract your mortgage payoff, agent commission (a negotiable percentage), closing costs, the Illinois transfer tax, and prep. This calculator’s property-tax figure covers the proration at closing. A comparative market analysis sharpens the sale-price input for your specific home.

Are the proceeds from selling my house taxable?

Sometimes. Many homeowners who sell a primary residence qualify for a capital gains exclusion and owe little or nothing, but it depends on your gain, how long you owned the home, and your filing situation. Confirm your specifics with a tax professional rather than a general rule.

Does Naperville have high property taxes?

Relative to national averages, yes. Naperville’s effective property-tax rate runs above the national median, which is common for DuPage and Will County suburbs that fund strong schools. Your exact bill depends on your home’s assessed value, your taxing bodies, and any exemptions you claim.

What property-tax exemptions can a Naperville homeowner claim?

Most owner-occupants qualify for the general homestead exemption, which lowers taxable value. Seniors may add the senior homestead exemption and, if income-eligible, the senior assessment freeze. Eligibility and amounts are set by Illinois and your county, so verify current details with the township assessor.

How much will I net selling my Naperville home?

It depends on your sale price and your costs. After mortgage payoff, agent commission, closing costs, the Illinois transfer tax, and prep, sellers typically net well below the sale price. The only accurate figure comes from running your specific numbers together rather than estimating one cost at a time.

Ready to see your real number?

Your net proceeds depend on your price and your costs, so the most accurate way to know is to run them together for your home. Request your home valuation from The Dan Firks Team to refine this estimate, or reach out to talk through your numbers, with no obligation. These figures are estimates, not a promise of price or net, because every home and every market is different.
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Have questions or need assistance about Naperville? Get in touch with The Dan Firks Team, your trusted guide to all things Naperville and real estate. At Naperville.com, we're dedicated to serving the community.