Property Tax Assessment Appeals

Property Tax Assessment Appeals

Property taxes are based on the assessed value of your property, determined by your local tax assessor. If you believe your assessment is too high, you have the right to appeal — and many homeowners who do so receive a reduction.

How Property Tax Assessments Work

Your property tax bill is calculated as:

Assessed Value × Tax Rate (Mill Rate) = Property Tax

The assessed value is supposed to reflect the fair market value of your property (or a percentage of it, depending on your state). Assessors determine this value using:

Comparable sales — recent sale prices of similar properties in your area

Cost approach — what it would cost to rebuild your home minus depreciation

Income approach — for rental or commercial property, based on the income the property generates

Grounds for Appealing

You may have a valid appeal if:

Overvaluation — the assessed value exceeds your property's actual fair market value

Unequal assessment — your property is assessed higher than comparable properties in your area

Incorrect property data — errors in square footage, lot size, number of bedrooms/bathrooms, age of the home, or condition

Failure to account for defects — the assessment doesn't reflect foundation problems, flood damage, environmental contamination, or needed repairs

Neighborhood decline — declining property values in your area are not reflected in the assessment

Gathering Evidence

Strong appeals rely on solid evidence:

Comparable Sales Data

Find 3-5 recent sales (within the past 6-12 months) of properties similar to yours in size, age, condition, and location

Adjust for differences (a comparable with a pool is worth more than one without)

Public records, real estate websites, and your real estate agent are good sources

Property Data Verification

Obtain your property record card from the assessor's office

Check every data point: square footage, lot size, number of rooms, building materials, year built

Errors are surprisingly common and can significantly affect the assessed value

Independent Appraisal

A professional appraisal ($300-$500) provides an independent opinion of value

Particularly useful for unique properties or those with significant defects

The cost is often recouped through tax savings within the first year

Photos and Documentation

Photos of needed repairs, structural issues, or neighborhood problems

Contractor estimates for necessary repairs

Evidence of environmental issues (flood zone, noise, contamination)

The Appeal Process

Step 1: File the Appeal on Time

Deadlines are strict — typically 30-90 days after receiving your assessment notice. Missing the deadline usually means waiting until next year.

Step 2: Informal Review

Many jurisdictions offer an informal review with the assessor's office before a formal hearing. This is often the fastest way to resolve simple errors.

Step 3: Formal Hearing

If the informal review doesn't resolve the issue, you'll appear before a Board of Review or Board of Equalization. At the hearing:

Present your evidence clearly and concisely

Focus on facts, not emotions ("my taxes are too high" is not a legal argument)

Bring organized copies of all evidence for the board members

Be respectful and professional

Step 4: Further Appeals

If you're denied, most states allow further appeals to:

State tax tribunal or court

State board of tax appeals

Circuit or superior court

Tips for Success

Appeal every year if your assessment is consistently too high

Monitor comparable sales in your neighborhood

Attend your hearing in person — it significantly increases success rates

Consider hiring a property tax attorney or consultant for high-value properties (many work on contingency)

Disclaimer: This guide is for informational purposes only. Property tax assessment procedures vary by state and county.