Discover if your property is overvalued with our analysis tools. Compare assessments, calculate potential savings, and file smarter appeals.
Everything you need to understand your property taxes and maximize your savings
Compare your property's taxable value against similar properties in your neighborhood with interactive maps.
Analyze NowCalculate Net Operating Income, CAP Rate, and Cash-on-Cash returns. Export results to CSV or PDF.
Calculate ROIVisualize your mortgage payments and see how extra payments can save you money. Download amortization schedules.
Analyze LoanStay informed about important tax appeal deadlines and never miss an opportunity.
View ScheduleCook County estimates property values using automated models that are often inaccurate. If your home is overvalued, you're paying more taxes than you should.
The majority of property tax appeals result in reduced assessments
Successful appellants save an average of $1,200 per year on property taxes
Filing an appeal with the Cook County Assessor's Office costs nothing
See how we've helped Cook County property owners save money and make smarter decisions.
"I had no idea I was overpaying on my property taxes until I used this tool. The comparison map made it so obvious that my assessment was higher than my neighbors. Using the data provided, I filed a successful appeal and saved over $2,000 this year!"
"As a first-time real estate investor, the ROI calculator is a godsend. It breaks down the cap rate and cash-on-cash return so clearly. I can analyze a potential deal in seconds rather than hours. Highly recommended for anyone in Cook County real estate."
"The interface is beautiful and intuitive. I was intimidated by the appeal process before, but this site explains everything simply. Checked the deadlines, found comparables, and submitted my appeal with confidence."
Get a taste of our powerful property analysis tools right here
Don't miss your opportunity to appeal your property tax assessment. Check the current deadline schedule for your township.
Appeal windows are typically 30 days from publication
Each township has different appeal periods throughout the year
Filing an appeal is free through the Assessor's Office
Everything you need to know about property taxes, appeals, and our tools.
The best way is to compare your property's assessed value per square foot to similar properties in your neighborhood using our Property Tax Tool. If your neighbors with similar homes are assessed significantly lower, you likely have grounds for an appeal.
Filing an appeal directly with the Cook County Assessor's Office is completely free. You do not need to hire a lawyer to file an appeal, especially for residential properties. Our tools provide the data you need to file yourself or we can do it for you for just $99
Appeal windows are open for specific townships at different times of the year, usually for a period of 30 days. Check our "Appeal Deadlines" section or the official Assessor's website to see if your township is currently open for appeals.
We use publicly available data directly from the Cook County Assessor's Office and the Cook County Open Data Portal. While we strive for 100% accuracy, we always recommend verifying final numbers with official county records before filing legal documents.
Our team of property tax experts is here to help you navigate the appeal process and maximize your savings.