ParcelProof analyses a property's assessment against published county records and tells you whether an appeal appears worth filing. Where it does, it prepares an evidence packet that you file with your county's board of review.
Everything we compute comes from public assessment rolls, county GIS parcel data and figures you supply. We show the arithmetic so you can check it.
Zappfin LLC is not a law firm. Nothing produced by this service is legal advice, and no attorney–client relationship is created by using it. The packet is an owner's evidence summary prepared for you to review, sign and file.
Specifically, nothing here is evidence, an appraisal, a professional comparative market analysis, or professional representation. Zappfin LLC is not a licensed appraiser and does not appear before any board on your behalf. The comparisons we produce are drawn by rule from published county records; a board decides for itself what weight to give them, and may disagree.
Illinois boards of review restrict who may appear before them. The Cook County Board of Review's rules state that “only licensed attorneys and individual taxpayers representing themselves (‘pro se’) may practice before the Board of Review”, and that “a person who is not an attorney may not represent a taxpayer before the Board of Review.”
So ParcelProof does not file anything on your behalf, and no product sold here includes filing. We prepare the document and the evidence; you sign it and submit it as the owner. Where we sell a review, a person checks your case and tells you what to fix — the filing remains yours.
Corporations, LLCs, trusts and condominium associations generally cannot self-represent before Illinois boards and must be represented by an attorney. If the property is not held in your own name, take advice before filing.
In plain terms: we do the arithmetic and show our working, but we cannot stand behind numbers we did not create. We take assessment figures from county sources that are sometimes stale, sometimes wrong, and occasionally published in a format that has to be interpreted. Comparable parcels are selected by rule, not by judgement.
The analysis and the verdict are free. Documents are sold per case at a flat price shown before you pay — currently $10.99 for the ready-to-file document set and $49.99 for the reviewed version. There is no subscription, no commission, and we never take a share of any reduction you obtain. Payment is processed by Stripe; we do not receive or store your card details.
If you want your money back, ask, and you get it. No reason required, no time limit, no approval step, and nobody to persuade. There is a button on the page where you bought it.
Refunds return to the original payment method and usually appear within a few working days. You keep any document already generated — we are not going to take back a file to make a point.
Advertising. Some pages on this site — the guides, articles and free tools, never the signed-in application and never the checkout — carry advertising served by Google. Google and its partners may set or read cookies, or use similar identifiers, to serve and measure those ads, and may use your prior visits to this and other websites to do so. We do not share your property details, assessment figures, case data or documents with any advertiser, and no advertiser has access to your account. You can review and control this at adssettings.google.com, and read how Google uses the information at policies.google.com/technologies/partner-sites.
We collect what the service needs and nothing else:
We do not sell your data, and we do not share it with anyone except the processors needed to run the service (Stripe for payment, Google for imagery and sign-in where you use it). We do not run advertising trackers.
You may delete a case at any time, and ask us to close your account and remove your data by emailing the address below.
The service is provided as-is. To the fullest extent permitted by Illinois law, Zappfin LLC's total liability arising from your use of the service is limited to the amount you paid us for the case in question. Zappfin LLC is not liable for a missed deadline, a rejected appeal, an increased assessment, or any consequential loss. You are responsible for reviewing every figure before you file.
Without limiting the foregoing, and for the avoidance of doubt, Zappfin LLC shall have no liability whatsoever for any loss, damage, penalty, additional tax, interest, missed deadline, adverse assessment or other consequence arising from or relating to any inaccurate, incomplete, outdated or erroneous statistic, calculation, estimate, valuation, measurement or other figure displayed by or obtained through the service, however that error arose. The disclaimer of warranty in section 4 is incorporated into this section by reference, and the two are intended to be read together.
Everything we compute starts from public records: county assessment rolls, county GIS parcel services, and the figures you supply or upload. Assessed values in Illinois are public record — the Freedom of Information Act (5 ILCS 140) reaches a Supervisor of Assessments, and an assessment roll is a producible record.
Public does not mean unrestricted. Some Illinois counties publish their records through a portal whose terms permit viewing and printing for personal use and forbid redistribution. We do not show figures for those counties. If your property is in one of them the service will say so plainly and tell you how to obtain your own assessment — which your county must give you — after which everything here works exactly as it does elsewhere.
We check each county's published terms rather than assuming, we record which source each figure came from, and we do not sell, license or redistribute the underlying records to anyone. What we offer is our own analysis of them: the comparison, the arithmetic behind it, and the document set. Where a county requires attribution or offers a commercial licence, we honour the first and will take the second before expanding into that county.
If you are a county officer and believe we hold or display something we should not, write to support@parcelproofai.com and we will withhold it while we look into it. That is a standing commitment, not a courtesy.
Please read this section. It changes how any dispute between us is resolved, and it gives up your right to a court trial and to take part in a class action.
You and Zappfin LLC agree that any dispute, claim or controversy arising out of or relating to these terms or to your use of the service will be resolved by binding individual arbitration rather than in court, before a single arbitrator administered by a recognised arbitration body under its consumer rules. The Federal Arbitration Act governs the interpretation and enforcement of this section.
You and Zappfin LLC each agree to bring claims only in an individual capacity, and not as a plaintiff or class member in any class, consolidated or representative proceeding. An arbitrator may not consolidate more than one person's claims and may not preside over any form of class proceeding.
If the class action waiver above is found unenforceable as to a particular claim, that claim — and only that claim — is severed from arbitration and heard in the courts named below.
These terms are governed by the laws of the State of Illinois, without regard to its conflict of laws rules. For any dispute not subject to arbitration under section 10, you and Zappfin LLC submit to the exclusive jurisdiction of the state and federal courts located in Cook County, Illinois, and waive any objection to venue there.
Questions, refund requests that the button did not resolve, arbitration opt-outs, or data deletion requests: support@parcelproofai.com.
We may update these terms; the date at the top changes when we do, and material changes will be notified to account holders by email.