Check your home
We compare the county's value with recent sales of similar homes nearby.
Cook County, Illinois
Is your home tax too high?
Enter your address. We compare the county's value with nearby home sales and show you what to do next.
Free · No signup · Public county records
Single-family sales research, not a review of every appeal argument. Condominiums are not supported.
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Email support@checkthecounty.com from the address you used at checkout. We'll look up your order and send your private guide link. Never email card information.
Home tax checkComplete
Your Cook County home
Clear answerYour results, in plain words.
Free first lookNo account required
Cook County nativeBuilt around local rules
Independent choicesFree and paid paths
How it works
From address to answer in three steps.
Complex county data goes in. A clear decision comes out.
See your answer
We show what we found, how sure we are, and where each number came from.
Choose what to do
Pay no county filing fee. Gather evidence yourself, or use our research guide.
Clear choices
$0 county filing fee. Evidence help is optional.
FREE · Check your property
$0Compare your property assessment with comparable home sales.OPTIONAL · Research guide
Checking current price…All comparable PINs, copy-ready notes, and a filing guide.THEN · You file directly
$0 county filing feeYou submit your own appeal through Cook County's portal.Cook County charges no filing fee. Check the County charges only for optional research, never a percentage of tax savings. We do not file appeals.
Trust the trail
Every number should have a source.
We use Cook County public records. The free report previews two nearby sales. Complete research includes every selected sale and document number.
Check my home free ↑01
County recordsThe county's value and facts about your home.
02
Real home salesRecent sales recorded by the county, not guesses.
03
Similar homesWe compare size, age, type, location, and sale date.
The essentials
Questions, answered plainly.
Does checking my home start an appeal?
Checking your property does not start an appeal or notify Cook County.
Can I file online without a lawyer?
Yes. Cook County lets homeowners submit an Assessor appeal and supporting documents online, and its rules do not require attorney representation.
How does Check the County make money?
The home check and deadline alerts are free. When results are strong, we sell an optional research guide with every selected sale, document numbers, portal notes, and a DIY PDF. Cook County's filing fee is $0.
Do you promise that I will save money?
No. We show what the public records say. We do not promise that Cook County will lower your home's value or your tax bill.
One address. One clear next step.