What Are the Grounds for an Appeal?

First, an assessment appeal is not a complaint about higher taxes. It’s an attempt to prove that your property’s estimated market value is either inaccurate or unfair.
For a successful appeal, you’ll need to prove at least one of three things:

1. Items that affect value are incorrect on your property record. For instance, you have one bath, not two. You have a carport, not a garage. Your home has 1,600, not 2,000 square feet, and so on. This is an easy one; you just compare the assessor’s record to what you’ve really got and submit proof such as a recent appraisal or photos.
2. You have evidence (comparables) that similar properties have sold for less than the market value of your property.
3. The estimated market value of your property is accurate but inequitable because it is higher than the estimated value of similar properties. If your home is in a subdivision of similar homes and your neighbors’ taxes are less, then you have a case for appeal. A title company, county recorder, or realtor can give you a list of what other homes in your neighborhood are paying in property taxes.