Addison Township Property Taxes

Located in DuPage County, Addison Township offers a convenient suburban lifestyle with access to major highways, O’Hare International Airport, parks, recreation, and the greater Chicago area. Its communities combine established neighborhoods with a variety of local amenities, including recreational facilities, entertainment venues, and seasonal community events. For Addison Township property owners, understanding how a property is assessed is an important part of managing Dupage County property taxes.

Reviewing your assessment can help identify inaccurate property information, potential overvaluation, or discrepancies between your property and comparable properties.

Understanding Your Addison Township Property Assessment

Your property assessment is used to determine the taxable value of your property. Information such as your property’s size, age, condition, and other characteristics can influence its assessed value.

Taking the time to review your assessment can help you determine whether the information accurately represents your property. If you do find an error, or believe your property has been valued too highly, you may have an opportunity to challenge the assessment.

Know Your Property Tax Savings Options

Property owners may have several options for potentially reducing their property tax burden. Exemptions can reduce the taxable value of qualifying properties, while property tax appeals challenge the assessed value assigned to a property.

These are separate forms of property tax relief, but both are worth considering when reviewing your overall circumstances.

Addison Township Exemption

Exemptions:

Eligible property owners may qualify for exemptions that reduce the taxable value of their property. The general homestead exemption in DuPage can reduce a homeowner’s qualifying property’s taxable value by $8,000. In order to qualify, the homeowner must use the property as their primary residence. Depending on eligibility, additional exemptions may be available for qualifying seniors, veterans, and individuals with disabilities. Because each exemption has its own requirements, homeowners should review their eligibility and make sure they are receiving every exemption for which they qualify.

Addison Property tax appeal

Property Tax Appeals:

A property tax appeal challenges the value assigned to your property. If your assessment is higher than your property’s fair market value or higher than comparable properties, an appeal may provide an opportunity to lower the assessment and potentially reduce your property tax burden. Appeals can also help reduce property taxes by demonstrating that a property is assessed differently from comparable properties. However, a successful appeal requires strong supporting evidence to show that an assessment should be changed.

How to Appeal Your Property Assessment

Property owners in Addison Township can challenge an assessment through the DuPage County appeal process. An appeal focuses on the assessed value of the property, rather than directly challenging the tax rate.

A successful appeal requires evidence showing why the assessment should be changed. Depending on the circumstances, that evidence may include recent sales, comparable assessments, property records, photographs, or documented factual errors. 

Like most of Illinois, Addison Township residents have only one chance to appeal their property taxes. Since they cannot protest directly to the assessor, their only option is to go before the Board of Review (BOR). Once this deadline passes, the ability to challenge an assessment is gone for another year.

scheduleImportant Dates for Addison Township Property Owners:

First installment of property taxes due: June 1, 2026

Second installment of property taxes due: September 1, 2026

Deadline to file an assessment appeal: October 13, 2026

O’Connor Helps Gather the Evidence

Finding the right evidence is often one of the most time-consuming parts of a property tax appeal. Property owners may need to research comparable properties, review local sales information, check property characteristics, and determine whether the assessment accurately reflects the property’s value.

O’Connor can help take on that work by building your evidence portfolio for you. This starts by looking into your assessment, where we can find issues that need to be addressed. We then use data-driven research and proprietary databases to find the best comparable properties.

After the evidence has been examined and curated, we will then coordinate an appeal with a veteran law firm that knows how best to deal with property taxes and assessments. There is no cost for this evidence, and you will only pay for it if your property taxes are lowered.

Frequently Asked Questions for Addison Township

An assessment determines your property’s taxable value, while the tax bill reflects that value alongside applicable tax rates, exemptions, and other factors.

The general homestead exemption reduces the taxable value of an eligible primary residence.

You can challenge your assessed value through the DuPage County property tax appeal process. Supporting evidence is an important part of the appeal.

Yes. Exemptions and assessments are separate forms of property tax relief, so eligible property owners may be able to use both.