Disclaimers

These disclaimers apply to this website, the free check and every packet we prepare. Packets do not repeat them: each packet page carries a link to this page in its footer, so please read it before you rely on a packet.

Not legal advice

Our website, checks and packets provide general information and are not legal advice. They are not a substitute for the advice of an attorney.

Wording follows Texas Government Code §81.101(c).

The same applies to our guides, checks and emails. Using this site does not create an attorney-client relationship. For advice about your situation, consult a licensed attorney.

Not an appraisal

A check or packet is not an appraisal and does not state an opinion of value. It reports facts from public records and statistics calculated by the same published method for every customer. You decide what value, if any, to request.

Any estimate or range in a packet is calculated automatically from public records by a fixed, published method. It is not an appraisal, and no appraiser or other person has formed an opinion of your home's value. You may request a different value.

We do not appraise property. Our reports present objective metrics computed from public records — such as how an assessment compares with similar homes — and are not a valuation report or an opinion of value.

Not a government agency

We are an independent company. We are not affiliated with, endorsed by, or acting for any assessor, board of review, or other government agency.

Property Appeal is not a government website. County and agency names are used only to identify where a rule applies. Filing with a government office is free or low-cost, and you can always file directly with the official office without us.

Results not guaranteed

Results are not guaranteed. The reviewing body decides every appeal, and filing does not guarantee a lower assessment or lower taxes.

An appeal may be denied. Estimated tax effects depend on factors we cannot know in advance, such as future tax rates and equalization factors.

You decide and you file

You decide whether to file, which comparables to use and what value to request. You complete, sign and submit every form yourself. We do not file, represent you, negotiate, or contact any government office for you.

Your assessment could go up

In some places the body that reviews your filing can also raise your assessment. Read the official rules for your stage before you file.

Rules on file for specific stages:

• The Cook County Board of Review may increase an assessment after giving notice and holding a hearing. Review the evidence in this packet, including anything that points to a higher value, before you file. (86 Ill. Adm. Code 110.135)

Data sources

Property characteristics, assessments and sales in a packet come from official public records, identified by the dataset release IDs in the packet's methods section. Public records can contain errors: check each figure against your notice and the official record before you rely on it.

Depending on your county, a check or packet may use:

County and state public records

Assessments, property characteristics and recorded sales from the official assessor, recorder and state datasets for each county, identified in every packet by dataset release ID. Credit line: The county's own public records.

U.S. Census Bureau, American Community Survey

Area facts (median home value, year built, rooms, owner-occupied share) from the ACS 5-year estimates. This product uses Census Bureau data but is not endorsed or certified by the Census Bureau. Credit line: Census ACS (public domain). Source.

U.S. Census Bureau, County Adjacency File

The neighboring counties linked from each county page, from the Census Bureau's County Adjacency File. This product uses Census Bureau data but is not endorsed or certified by the Census Bureau. Credit line: Census county adjacency (public domain). Source.

Federal Housing Finance Agency House Price Index

Local price-index changes, shown as facts about the market and never applied to a price. Credit line: FHFA HPI (public domain). Source.

Microsoft US Building Footprints

Building footprints © Microsoft, available under the Open Database License (ODbL 1.0), where a packet or result shows building outlines. Credit line: Building outlines © Microsoft, ODbL. Source.

Oregon Metro RLIS (Multnomah, Washington and Clackamas counties)

Regional Land Information System data are a product of Metro and made publicly available according to the license agreement found in https://rlisdiscovery.oregonmetro.gov/pages/open-database-license. Credit line: Portland-area data: Metro RLIS. Source.

County of Sonoma

Parcel data: County of Sonoma (Clerk-Recorder-Assessor, "Parcels Public"), listed by the county under Creative Commons Attribution-ShareAlike (CC BY-SA 3.0). Credit line: Sonoma County data, CC BY-SA 3.0. Source.

Jackson County GIS (Oregon)

Tax-lot data courtesy of Jackson County GIS, licensed under Creative Commons Attribution 4.0 (CC BY 4.0). Credit line: Jackson County data, CC BY 4.0.

Deschutes County GIS (Oregon)

Tax-lot and assessment data from Deschutes County GIS (Taxlots and related tables). Credit line: Deschutes County GIS.

Greenville County GIS (South Carolina)

Reassessment values, property characteristics and residential sales from Greenville County GIS public map services. Credit line: Greenville County GIS.

King County GIS (Washington)

Parcel locations from King County GIS Open Data. Credit line: King County GIS.

Where a result, county page or packet shows one of these sources, it prints the short credit line next to it, and only then. See our methodology for how each figure is calculated.

Maps

Packet maps are schematics drawn from the parcel coordinates in the public record. They use no basemap or map tiles, are not to scale beyond the scale bar shown, and only show where the comparable homes are relative to yours.

Deadlines and data accuracy

We show each deadline next to its official source, but deadlines can change. Always confirm the date printed on your own assessment notice or the official calendar; if they differ, the official date controls. Public records can contain errors; you confirm your property’s record before any result is shown. See how we verify facts.

Use of AI

We use AI to find and extract rules from official sources. A person verifies each fact before it is published, and AI never chooses comparable homes, computes values or writes conclusions in reports.

Links to other sites

Links to official and third-party sites are provided for reference; we don’t control their content.

Disclaimer catalog 2026.09.28.3.