What Is an Appeal
An appeal is a formal request to a higher authority to reconsider and lower an assessed property value. Unlike a protest, which you file with your local assessor's office, an appeal goes to an independent review board or court after your protest is denied or you skip the protest stage entirely.
In most jurisdictions, property tax appeals follow a two-tier system. Your first layer is the Board of Review (or County Board of Assessment Appeals), which typically hears cases within 30 to 120 days of filing. If you lose there, you can appeal to court, though court appeals require demonstrating that the Board's decision was arbitrary or an abuse of discretion.
The Appeal Process
The Board of Review hearing is where most property tax appeals are decided. You'll present evidence that your assessment is too high compared to comparable sales in your area, or that the assessor used incorrect appraisal methods. The assessor's office gets equal time to defend their valuation.
Successful appeals typically hinge on three things: comparable sales analysis, assessment ratios, and documented appraisal errors. Comparable sales mean you find 3 to 5 similar properties that sold recently in your market for less than your assessed value. Assessment ratios measure what percentage of market value your assessment represents. If homes in your district are assessed at 35% of market value but yours is assessed at 45%, that disparity strengthens your case.
Filing deadlines matter. Most jurisdictions require appeals filed within 30 days of the Board of Review's decision. Some allow appeals filed before the original assessment date if you didn't file a protest. Check your county's specific rules, as missing a deadline typically closes your window permanently.
What Evidence Works
- Comparable sales: Recent arm's length transactions of similar properties within 6 months and within a half-mile radius. Professional appraisals listing these comps carry more weight than your own research.
- Appraisal methods: Documentation showing the assessor applied wrong valuation approaches (cost method instead of market approach for an older home, for example).
- Property condition reports: Photos and documentation of deferred maintenance, functional obsolescence, or building code violations that reduce value.
- Assessment exemptions: Proof you qualify for homestead exemptions, agricultural exemptions, or other property-specific exemptions that lower your taxable value.
- Incomplete or inaccurate property records: Evidence the assessor overstated square footage, lot size, or number of bedrooms.
Common Questions
- Do I need a lawyer for a Board of Review appeal? Many property owners successfully represent themselves, especially when comparable sales clearly support a lower value. A tax attorney or professional appraiser costs $500 to $2,500 but increases your chances of winning in complex cases or when values are very high.
- What if I missed the protest deadline but am still within the appeal deadline? Some jurisdictions allow direct appeals to the Board of Review if you file before the statutory deadline (often 45 to 60 days from assessment notice). You forfeit the assessor's chance to reconsider, but you still get a full hearing.
- How much does the assessment usually have to drop to make an appeal worthwhile? Since property tax appeals reduce your taxes every year going forward, even a 5% reduction (roughly $500 per $100,000 assessed) often justifies the effort if comps support it. Appeals are most cost-effective for properties assessed at $300,000 or higher.