Belvidere, Boone County, Illinois Property Taxes
Property Taxes in Belvidere, Illinois
Median Belvidere, Illinois effective property tax rate: 2.54%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Belvidere, Illinois home value: $183,606
Median annual Belvidere, Illinois tax bill: $4,521, $2,121 higher than the national median property tax bill of $2,400.
How are property taxes in Boone calculated?
Property taxes in Belvidere, Illinois are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Belvidere's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Belvidere, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Belvidere, Boone County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.54%
Estimate Property Tax Bill
$4,664
$4,328
How Does the Belvidere Property Tax Calculator Work?
Use this Belvidere property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Belvidere's median effective tax rate of 2.54% — based on actual property records in Boone County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Belvidere's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Belvidere's rate is higher than the 2.33% Illinois median property tax rate, and the $4,521 median property tax bill is higher than the national median property tax bill of $2,400. Your bill may vary by ZIP code within Belvidere, but the median property tax bill is $4,521 in 61008.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Belvidere.
About Belvidere Property Taxes
About Property Taxes in Belvidere, Boone, Illinois
Belvidere’s median effective property tax rate of 2.54% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Boone County base levy combined with local school district levies and special service areas that vary by subdivision throughout the city.
Property tax rates are not uniform across Belvidere. Homeowners in the 61008 ZIP code carry a median effective rate of 2.54%, while those in the same ZIP code pay 2.54%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Boone County. Understanding which part of Belvidere you live in can make a meaningful difference to your annual tax bill.
Belvidere homeowners who believe their assessed value is too high can file a formal appeal with the Boone County Tax Assessor before the June 1, 2026 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Belvidere, Boone County, Illinois
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Belvidere's effective property tax rate to other cities in Illinois and the median property tax rates in Illinois and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Belvidere Tax Rate
2.54%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Boone County Tax Rate
2.48%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Belvidere, Boone County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61008 | 2.12% | 2.38% | 2.54% | 2.70% | 2.88% |
Source: Ownwell
Property Tax Assessment Values Across Belvidere, Boone County, Illinois
When examining property taxes in Belvidere, Illinois, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Boone County assessor estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Boone County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Belvidere.
For example, the median home price in Belvidere is $183,606, with tax bills ranging significantly across the county. 61008 has the highest median home price at $183,606.
Property Tax Assessment Values Across Belvidere, Boone County, Illinois
Source: Ownwell
$183,606
$281,940
$380,274
Median Belvidere Market Value
$183,606
Median Boone County Market Value
$205,580
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Belvidere, Boone County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61008 | $25,976 | $122,196 | $183,606 | $265,916 | $360,458 |
Source: Ownwell
Property Tax Bills Across Belvidere, Boone County, Illinois
Property tax bills in Belvidere are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. Local taxing bodies, such as schools and municipal services, set the rates that determine how much a homeowner owes each year. Because the bill is tied to assessed value and local levies, two homes with similar market values can still have different tax bills if they are in different parts of the city or subject to different taxing jurisdictions.
For homeowners, this means property taxes can rise when assessed values increase or when local budgets require higher rates. With a median home price of $183,606, the tax burden can be significant, especially compared with the national median property tax bill of $2,400. In Belvidere, the median tax bill is $4,521, and bills commonly range from $2,835 at the 25th percentile to $6,896 at the 75th percentile, with the 90th percentile reaching $9,089.
Median Belvidere Tax Bill
$4,521
Median Boone County Tax Bill
$4,861
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Belvidere, Boone County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61008 | $652 | $2,835 | $4,521 | $6,896 | $9,089 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
Links | |
|---|---|
| Boone Tax Assessor | |
| Website | booneil.devnetwedge.com |