Uniformity issues
Your property's assessed value is higher than similar homes in the same neighborhood. Assessments should be uniform for houses of comparable size, age and construction.
COOK COUNTY RESIDENTIAL PROPERTY TAX APPEAL ATTORNEYS
Cook County Residential
Property Tax Appeal Services
Led by Illinois tax attorneys and CPAs who appeal Cook County residential property tax assessments — data-driven, contingency-only,
with full exemption review.
Free assessment · Takes 2 minutes · No obligation
- No Upfront Fees
- Attorney-Led Appeals
- Full Exemption Review
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Condominiums (Condos)
Contingency-only representation: 25% of first-year tax savings, only if we reduce your assessment. Full exemption audit included.
25%
CONTINGENCY ONLY
Full
EXEMPTION AUDIT
Every
LEVEL OF REVIEW
All engagements are subject to a written fee agreement that complies with Illinois Rule of Professional Conduct 1.5(c). Past results do not guarantee a similar outcome.
WHY COOK COUNTY HOMEOWNERS OVERPAY
Cook County Homeowners Often
Overpay Their Property Taxes
Cook County Homeowners Often Overpay Their Property Taxes
Cook County homeowners often pay higher property taxes than necessary because their homes are overassessed.
Property assessments are determined using mass appraisal systems, which means inaccuracies and outdated property data can sometimes lead to inflated valuations.
Start today with a free property tax evaluation
to see if your home qualifies for a reduction
If your home is assessed above its true market value, you may qualify for a Cook County residential property tax appeal that could lower your tax bill.
At Cook County Tax Appeal, our experienced attorneys and property tax professionals help homeowners challenge unfair property assessments and pursue tax reductions through a proven, data-driven appeal process.
We handle the entire appeal process from start to finish so homeowners can focus on their property while we work to reduce their tax burden.
OUR PROCESS
Our Cook County
Property Tax Appeal Process
A streamlined process that lets homeowners start an appeal quickly while ensuring every case is supported by strong evidence.
1
Free Property Assessment Review
We analyze your property's assessed value and compare it to similar homes in your area.
2
Comparable Sales Analysis
Our team reviews recent market sales to determine whether your property has been overvalued.
3
Evidence Preparation
We compile supporting documentation including comparable properties, market data, and assessment discrepancies.
4
Filing the Appeal
Our attorneys file the appeal with the appropriate authority before the township deadline.
5
Representation Through Every Level of Review
- We represent homeowners before:
- Cook County Assessor's Office
- Cook County Board of Review (35 ILCS 200/16-95 et seq.)
- Illinois Property Tax Appeal Board, PTAB (35 ILCS 200/16-160)
- Circuit Court of Cook County, tax objection complaint (35 ILCS 200/23-5 through 23-25)
6
Reduction in Assessed Value
If the appeal is successful, the assessed value of the property is reduced, lowering the tax bill.
Quick rule of thumb: The Assessor stage is optional. The Board of Review is the prerequisite for the next level. After a final Board of Review decision, the taxpayer chooses PTAB or the Circuit Court tax objection complaint, not both.
Assessment Issues
Common Reasons HomesAre Over-Assessed in Cook County, Illinois
These are the patterns we look for when reviewing a property. Most successful appeals combine two or more of them.
Errors in Property Records
Mistakes in the assessor's data, including incorrect square footage, wrong property classification, or miscounted units, can inflate the assessed value.
Overvaluation of Market Value
The assessor's estimate exceeds the property's fair market value. A recent sales contract or appraisal can show the value is too high.
High Assessment-to-Value Ratio
The property's assessed value is a higher percentage of market value than typical in the township. Assessment and sales ratio studies can reveal this.
Higher Than Comparable Properties
Comparable homes nearby have lower assessments, indicating a lack of uniformity.
Outdated or Inaccurate Data
Mass-appraisal systems sometimes rely on old information, phantom improvements, or wrong depreciation factors, leading to inflated values.
Ignored Property Condition
Assessors often cannot see inside a house and may overlook damage, deferred maintenance, or functional obsolescence. Unique features, like odd lot shapes or proximity to busy roads, may also be undervalued in the model.
Market Changes Not Reflected
Assessments can lag behind market downturns or fail to account for property damage, causing the estimated value to be too high.
Missed Exemptions
Failing to apply for homestead, senior, disability, or veteran exemptions keeps the taxable value higher than necessary.
Lack of Appeals
Homeowners who never challenge their assessments continue paying taxes on an inflated value. Filing an appeal can correct errors that have built up over years.
Misclassification or Calculation Errors
Some properties are misclassified, coded incorrectly, or include duplicate improvements or math errors in the assessor's worksheet.
Our Services
How We Help You Reduce Your
Cook County Property Taxes
How We Help You
Reduce Your Cook County Property Taxes
If your home is overassessed, you may be paying thousands more in property taxes than necessary. We help homeowners file and win Cook County property tax appeals by identifying overvaluations, correcting assessment errors, and presenting strong evidence to reduce assessed values.
Our firm focuses exclusively on Cook County property tax appeals, allowing us to deliver targeted, data-driven results for homeowners throughout Chicago and the surrounding suburbs.
Expert Property Tax Appeal Services in Cook County
A proven process to determine whether your home qualifies for a property tax reduction in Cook County.
Comprehensive Assessment Review
We review your property's assessed value and identify whether it exceeds fair market value. Our team examines assessor records, valuation methods, and historical data to determine if your home has been overassessed.
Comparable Property Analysis
We analyze similar homes in your neighborhood to determine whether your property is assessed higher than comparable properties. If your assessment lacks uniformity, we build a strong appeal based on this discrepancy.
Market Value Evaluation
We review recent home sales, market trends, and valuation data to determine whether your assessed value exceeds what your property would realistically sell for in today's market.
Property Record Error Detection
Many Cook County assessments are inflated due to incorrect data.
We identify issues such as:
- Incorrect square footage
- Property misclassification
- Wrong number of units
- Inaccurate improvements
Evidence Development and Case Preparation
We prepare a complete appeal package supported by:
- Comparable property data
- Market sales evidence
- Assessment inconsistencies
- Property condition factors
Representation at Every Level
We represent homeowners before:
- Cook County Assessor's Office
- Cook County Board of Review
- Illinois Property Tax Appeal Board (PTAB)
- Circuit Court of Cook County, tax objection complaint
WHO AND WHAT WE COVER
Properties We Represent
and Exemptions We Audit
We focus on Class 2 residential properties in Cook County, including condominiums, and we conduct a full audit of every Illinois homeowner exemption that may apply.
Residential Properties We Represent
We represent homeowners across Cook County who own residential property classes commonly assessed as Class 2:
We successfully handle appeals for:
- Single-Family Homes
- Townhomes and row houses
- Condominiums
- Two, three, and four-flats
- Multi-family buildings up to six units
- Mixed-use properties that are primarily residential
Whether the property is a primary residence, vacation home, or local investment property, our team can review your assessment to make sure you are being taxed fairly.
Exemptions That Can Reduce Property Taxes
Many homeowners miss valuable exemptions. Our audit reviews each of the following Illinois homestead exemptions:
- General Homestead Exemption (35 ILCS 200/15-175)
- Senior Citizen Homestead Exemption (35 ILCS 200/15-170)
- Senior Citizens Assessment Freeze Homestead Exemption, "Senior Freeze" (35 ILCS 200/15-172)
- Persons with Disabilities Homestead Exemption (35 ILCS 200/15-168)
- Standard Homestead Exemption for Veterans with Disabilities (35 ILCS 200/15-169)
- Returning Veterans Homestead Exemption (35 ILCS 200/15-167)
- Long-time Occupant Homestead Exemption (35 ILCS 200/15-177)
- Home Improvement Exemption (35 ILCS 200/15-180)
Combining missing exemptions with a successful property tax appeal can significantly reduce your annual property tax bill.
COVERAGE
Cook County Townships We Serve
We help homeowners file property tax appeals throughout Cook County. The 38 assessment townships, including the City of Chicago designations:
Berwyn
Bloom
Bremen
Calumet
Cicero
Lemont
Lyons
Orland
Oak Park
Palos
Lyons
Proviso
Rich
River Forest
Riverside
Stickney
Thornton
Worth
Barrington
Elk Grove
Evanston
Hanover
Hyde Park
Jefferson
Lake
Lake View
Leyden
Maine
New Trier
Niles
North Chicago
Northfield
Norwood Park
Palatine
Rogers Park
Schaumburg
South Chicago
West
Wheeling
No matter which township your property is in, our team can help you navigate the appeal process.
WHY CHOOSE US
Why Homeowners Choose Cook County Tax Appeal
Our firm focuses exclusively on Cook County property tax appeals and provides experienced legal representation, with a risk-free, no-savings-no-fee guarantee.
Local Cook County Expertise
Our team understands township reassessment cycles, filing deadlines, and the appeal procedures used by Cook County agencies.
Attorney-Led Representation
Your appeal is handled by experienced attorneys and property tax professionals.
Data-Driven Analysis
We use advanced property data and comparable sales analysis to build strong appeal cases.
No Upfront Costs
Our services are contingency-based; you pay nothing unless we successfully reduce your property taxes. All engagements are subject to a written fee agreement.
No Savings, No Fee
Our Risk-Free Guarantee
Our residential property tax appeal services are completely risk-free.
No upfront fees
No hidden costs
No payment unless we reduce your taxes
If we do not secure a reduction, you owe nothing.
Start Your Free Cook County Residential Property Tax Review
If your home may be overassessed, a property tax appeal could reduce your tax bill and
save you money for years to come. Submit your property today to receive a free
residential property tax evaluation.