Chris Aiello Law

📍 Villa Park, IL · Serving DuPage & Cook County

Real Estate Law · DuPage County, Illinois

Your Property Tax Bill, Reduced.

Residential and commercial closings handled with care from contract to keys, so the details are covered before you sign.

0Years of counsel
0Practice areas
1990Established

DuPage County and Cook County property taxes are among the highest in the country, and assessments are wrong more often than owners realize. If your assessed value is too high, you overpay every year until someone challenges it. We handle property tax appeals for homeowners and commercial owners across DuPage and Cook County, and we only recommend an appeal when the numbers support one.

We have handled Illinois property tax appeals for more than thirty years, as part of a full real estate practice. We know the DuPage and Cook County boards, their deadlines, and the evidence they actually credit, and we tell you honestly whether your assessment is beatable before you spend a dollar.

What We Cover

Topics in This Practice

We address the full range of issues in this area.

DuPage County Board of Review appeal pro

The full DuPage County appeal process, from filing with the Board of Review to presenting evidence at hearing, on residential and commercial property.

Cook County Assessor and Board of Review

Appeals at both the Cook County Assessor and the Board of Review, including the tighter township deadlines that catch owners off guard.

Comparable sales analysis and appraisal

The evidence that wins appeals: comparable sales, assessment ratios, and when needed a supporting appraisal that shows your property is over-assessed.

Commercial property tax appeals

Income-producing and commercial property, where assessed value, vacancy, and the income approach all factor into a much larger tax bill.

Illinois Property Tax Appeal Board (PTAB

Appeals to the state Property Tax Appeal Board when the county denies relief, and the Circuit Court review that can follow.

Multi-year appeal strategies

A plan that protects the reduction across reassessment cycles, so you are not refiling from scratch every year.
What to Expect

How a Property Tax Appeal Works in Illinois

An appeal lives or dies on evidence and deadlines. We start by checking whether your assessment is actually out of line, using comparable sales and assessment ratios, because there is no point appealing a fair number. If it is high, we build the case and file with your county’s Board of Review before the township deadline, which is often a short and unforgiving window.

From there we present the evidence and, if the county denies relief, we can escalate to the Illinois Property Tax Appeal Board or the Circuit Court. A successful appeal lowers not just this year’s bill but your baseline going forward, which is why a single reduction often pays for itself many times over. We handle the process end to end and keep you posted at each step.

Why Hire Us

What Sets Our Work Apart

Local court experience

30+ years in DuPage and Cook County courts and recorder offices.

Direct attorney access

Chris or John handles your file personally.

Integrated with broader practice

Real estate, litigation, and estate planning under one roof.

Honest case assessment

We’ll tell you realistic outcomes, including when settlement is better than litigation.

Transparent pricing

Flat fees where possible, clear hourly rates where flat doesn’t fit.

Responsive communication

Your calls returned, your questions answered.

Service Area

Serving DuPage & Cook County

From our Villa Park office, we represent clients across DuPage County and the western suburbs of Chicago.

Villa ParkElmhurstLombardWheatonOak BrookDowners GroveAddisonOak ParkGlen EllynBloomingdaleHinsdaleWestmontDuPage CountyCook County
Property Tax Appeals FAQ

Common Questions

Often yes, particularly if your assessment is out of line with comparable properties, your property has condition issues affecting value, or your township reassessment overshoots actual market value. Roughly 30-40% of appeals result in reductions.

The Board of Review opens annually after the assessor’s office publishes assessments, typically late summer through fall. Each township has its own filing deadline. Miss the window and you wait until next year.

Depends on the over-assessment. Successful appeals of 10-30% reductions in assessed value are common. On a $400K home with a 20% reduction, savings are typically $1,500-3,000 per year, and reductions can carry forward for years.

Usually no, most board hearings are decided on the written submission. Some commercial cases or contested matters require appearance. We handle the entire process for you.

Most property tax appeal attorneys (including us) work on contingency for residential appeals, a percentage of the first year’s tax savings. No savings = no fee. Commercial appeals may be hourly or contingent depending on complexity.

It depends on how over-assessed your property is, but reductions commonly translate into hundreds or thousands of dollars a year, and the savings repeat until the next reassessment. We estimate the realistic range before filing so you know whether the appeal is worth your time.

It varies by county and township, and the windows are short, often about thirty days after assessments are published. Miss it and you generally wait a full year. The safest move is to have us check your assessment as soon as you get the notice.

Question About Property Tax Appeals?

A free consultation tells you whether you have a viable matter and what the realistic process looks like.