How Property Tax Appeals Work
Evaluate your assessment, review comparable sales, and prepare a county-ready appeal packet — all before you pay anything.
What Is a Property Tax Appeal?
Every property owner pays taxes based on their county's assessed value of their home. If that assessed value is higher than what your property would actually sell for on the open market, you may be paying more than you should. A property tax appeal is a formal request to your county's assessor or board of equalization to reconsider your property's assessed value.
The appeal process is straightforward in most counties: you present evidence — typically recent sales of similar properties — showing that your home's market value is lower than the assessed value. The county reviews your evidence and makes a determination. If they agree, your assessment may be reduced.
Important: The county assessor or review board makes the final decision on every appeal. No tool, service, or document can determine the outcome. What SmartAppealTool does is help you gather comparable sales data, organize your evidence, and format it in a way that county boards can evaluate.
How Market Value Estimates Are Used in Appeals
The most common evidence in a property tax appeal is comparable sales — recent sales of properties similar to yours in size, condition, and location. When you present these sales to your county, you are making the case that your property's market value is closer to what similar homes have actually sold for, rather than the county's assessed value.
SmartAppealTool automates this process. Our Automated Valuation Model (AVM) identifies the most comparable recent sales, applies adjustments for differences in property features, and calculates an estimated market value. This estimate and the supporting comparable sales data are compiled into a formatted appeal packet that you can review, edit, and submit to your county. For more details, visit our FAQ page.
The Four-Step Process
From property search to submission-ready appeal packet. The first two steps are free.
Step 1: Find Your Property (Free)
- Search by address, parcel ID, or owner name
- Instantly view your current assessed value
- See key property details (sqft, year built, lot size)
- No account required to search
Step 2: Review Your Free Screening (Free)
- Comparison against similar nearby properties
- Identifies whether your assessment appears higher than peers
- Free initial check — no obligation to continue
- Provides a recommendation: Appeal, Maybe, or Not Recommended
Step 3: Market Evidence Analysis (Paid)
- Top 5 most comparable recent sales selected automatically
- Jurisdiction-aware filtering (same city, same ZIP preferred)
- Adjustments for size, age, lot, and location differences
- Independent market value estimate from multiple data points
Step 4: Submission-Ready Packet (Included)
- Editable Microsoft Word (.docx) format
- Pre-written appeal statement with your property details
- Comparable sales evidence table with adjustments
- Filing instructions specific to your county and deadlines
- Review, customize, and submit on your own schedule
What You Decide vs. What the County Decides
You Decide
- Whether to search your property (free)
- Whether to review the screening results (free)
- Whether to purchase the full analysis
- Which comparable sales to include
- What to add or change in the appeal packet
- Whether and when to submit the appeal
The County Decides
- Whether to accept or reject your appeal
- How much (if any) to adjust your assessment
- The final assessed value of your property
- Your property tax bill amount
- Whether a hearing is required
- The timeline for their decision
What's Included in Your Appeal Packet
- Property Assessment Summary — Current assessment vs. estimated market value
- Market Value Analysis — Independent estimate from recent comparable sales
- Top 5 Comparable Sales — Closest matches by location, size, age, and sale date
- Adjustment Grid — Transparent adjustments for property differences
- Pre-Written Appeal Statement — Professional, conservative, assessor-friendly language
- Filing Instructions — County-specific deadlines, forms, and next steps
- Editable Word Document — Fully customizable
Currently available in Missouri, Texas, and Illinois. See our Counties page for current coverage.