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Property Tax Inquiries Call :
877-482-9288

Illinois Assessment Appeal

Property Tax Reduction Services

  • Yes, O’Connor CAN help you reduce your property taxes.
  • Yes – there is NEVER a fee unless we reduce your property taxes.
  • Simple online enrollment in just 2 or 3 minutes.

Property Tax Protection Program is powered by O’Connor & Associates

  • Free enrollment: no credit card required. No upfront fees. Pay nothing unless we reduce your property taxes.

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Why Choose O’Connor

Why choose O’Connor

for Residential Property Protest Services?

  • Tick Mark There are no flat fees, up-front cost, or other fees. You pay nothing unless we reduce your property taxes, guaranteed contingency fee of only 30%.
  • Tick Mark We take the fight to your county assessor every year, whether your property value is up, down, or does not change.
  • Tick Mark We are among the largest property tax consulting firms in the nation.
  • Tick Mark O’Connor’s offices are located in the Chicago suburbs.

Residential Property Tax Protection Program™

Every practical effort is made to reduce your property taxes, including appeals to the highest appropriate level each year, whether that is to the township assessor, county board of review, the Illinois Property Tax Appeal Board (PTAB) or coordinating a judicial appeal.

  • points You never pay a nickel for anything unless we reduce your property taxes.
  • points We assist you with exemption questions and applications at no cost.
  • points O’Connor works with you to confirm the township/county assessor has the correct home characteristics.
  • points Discuss photos and other documentation that can make a real difference in your results.
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benefits

Benefits Include:

  • Tick Mark Easy, online enrollment, in three minutes.
  • Tick Mark O’Connor pursues both assessor and the county board of review hearings and coordinates judicial appeals when pursuing property tax reductions.
  • Tick Mark Our experienced property tax consultants have long-term relationships with the county board of review and their staff.
  • Tick Mark

    O’Connor pays ALL judicial appeal fees:

  • Legal fees, expert witness fees, and court costs.
  • Tick Mark We file and you never miss another property tax protest deadline.
saving

Estimated Tax Savings $1,318

Original Market Value

$380,000.00

Final Market Value

$344,000.00

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Estimated Tax Savings $2,446

Original Market Value

$960,000.00

Final Market Value

$847,650.00

saving

Estimated Tax Savings $4,722

Original Market Value

$580,000.00

Final Market Value

$350,400.00

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About O’Connor

O’Connor’s mission is to be the leading property tax advocate for taxpayers and to drive reforms in the property tax appeal process. Our proven solutions continue to help taxpayers reduce their annual property taxes.

Illinois Property Tax Appeal

O’Connor is the leading company representative for the Illinois property owners because:

  • points For over 20 years, O’Connor has provided property tax consulting services and has continuously produced results.
  • points O’Connor is the most aggressive property tax consultant.
  • points We know the processes and appropriate contacts at Illinois Assessor’s Office.
  • points Our experience has allowed us to compile sales and unequal appraisal data consistent with the format expected by the Illinois Assessor’s Office.
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The Property Tax Protection Program™ Works for You!

It’s YOUR RIGHT to file a property tax appeal each year. It’s also YOUR MONEY that the County keeps when you overpay.

Not anymore! Enrollment in the RISK-FREE program means your family is protected for as long as you own your home.

No Cost
No cost to enroll
No Cost
Free secure customer portal designed for your convenience
No Cost
Free subscription to tax saving tips throughout the year

Our Proven Process:

  • points Analyzes existing assessments.
  • points Researches, prepares and presents property tax appeals on your behalf at informal hearings.
  • points Coordinates a mutually agreed lawsuit, if appropriate.
You are not billed for court costs, appraisals, expert witness fees or legal fees.
You pay us only if we reduce your taxes! You have zero risk.
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Kelsie Neahring, Property Tax Consultant

Kelsie Neahring heads residential and commercial property tax consulting for O’Connor’s Chicago office. Prior to joining O’Connor, Kelsie worked for the Kendall County State’s Attorney’s Office as a criminal litigator. Her experience in trials and hearings provides O’Connor’s clients with an advantage in hearings and negotiations. She enjoys crafting innovative ways to make arguments and build evidence for hearings. Kelsie is a graduate of Chicago-Kent College of Law, Illinois Institute of Technology.

ENROLL TODAY In the Property Tax Protection Program™

Your property taxes will be aggressively protested every year by the #1 property tax firm in the country. If your taxes are not reduced you PAY NOTHING, and a portion of the tax savings is the only fee you pay when your taxes are reduced! Many FREE benefits come with enrollment.
ENROLL NOW

Free online enrollment in 3 minutes.

No cost unless taxes reduced, guaranteed.

Property Tax Locations

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Chicago Office

(By appointment only)
75 Executive Drive,
Suite 349, Aurora, IL 60504
708-630-0944

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Houston Office

(Corporate)
2200 North Loop West,
Suite 200 Houston, TX 77018
713-686-9955

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Dallas Office

(By appointment only)
12300 Ford Rd., Suite #414
Dallas, TX 75234
972-243-9966

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San Antonio Office

(By appointment only)
8632 Fredericksburg Rd Ste 105
San Antonio TX 78240
210-226-0829

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Atlanta Office

(By appointment only)
4751 Best Road, Suite 316,
College Park, GA 30337
770-835-4126

Property Tax Protection Program Benefits
About O'Connor
Property Tax Help Specialists

O’Connor provides property tax appeal services to over 100,000 clients in over 40 states. Client tax savings totaled over $120 million in 2020. O’Connor has been serving property owners since 1974, almost 50 years. Client tax savings total over $1,000,000,000.

O’Connor measures its success in client property tax savings, not billings. Our goal is to save clients $1 billion annually.

With over 200 property tax experts, many of whom have worked with us for 10+ years, O’Connor has the expertise to help with your property tax questions and appeals. We literally wrote the books on property tax reduction:

  1. Mass Appraisal for Commercial – What Every Commercial Property Owner Should Know!
  2. What You Need to Know about Business Personal Property
  3. Cut Your Texas Property Taxes

The steps to appeal are complicated and may seem like too much work, but when O'Connor represents your property for appeal, we handle the details. We provide a property tax reduction service to residential homeowners in exchange for a contingency fee of 30 percent of all property taxes saved through administrative hearings or judicial appeal, for that tax year.