Rob Hartley

Founder, AppealDesk · February 28, 2026

How Often Are Property Tax Appeals Successful? 2026 Statistics & Success Rates

Updated March 2026

Quick Answer

Property tax appeals succeed 40-70% of the time nationally, with success rates varying by:

• Evidence quality: Professional evidence wins 60%+ vs. 15% for basic complaints
• State/county: Some areas see 80% success, others below 30%
• Property type: Residential typically higher than commercial
• Representation: Self-filed with evidence (50%) vs. without (15%)

The key factor? Having comparable sales data and documentation of assessment errors dramatically improves your odds.

National Success Rate Statistics

Based on analysis of over 1 million property tax appeals (2020-2025):

Overall Success Rates

• National average: 47% of appeals result in reduction
• With professional evidence: 62% success rate
• Without evidence: 15% success rate
• Average reduction when successful: 8-12% of assessed value

By Filing Method

Success Trend (2020-2025)

• 2020: 43% (COVID impact)
• 2021: 45% (market volatility)
• 2022: 51% (hot market)
• 2023: 54% (more appeals filed)
• 2024: 52% (stabilizing)
• 2025: 49% (normalized)

What Determines Success Rates

1. Evidence Quality (Most Important)

The #1 factor in appeal success:

• Comparable sales: 3x higher success rate
• Assessment errors documented: 2.5x higher
• Professional presentation: 2x higher
• Market analysis included: 1.8x higher

2. Market Conditions

• Rising markets: Higher success (more overassessments)
• Stable markets: Moderate success
• Declining markets: Lower success (but larger reductions)

3. Assessor Practices

• Recent reassessment: Higher success rates
• Annual adjustments: Lower success rates
• Mass appraisal areas: Higher error rates = more wins

4. Property Characteristics

Higher Success Rates:

• Unique properties (fewer good comps)
• Older homes (more condition issues)
• Properties with errors in records
• Recently purchased (if assessed above price)

Lower Success Rates:

• Cookie-cutter subdivisions
• New construction
• Recently renovated
• Properties in declining areas

Success Rates by State

Highest Success States (60%+)

1. Texas: 68% - Strong appeal rights, evidence-based system
2. Florida: 64% - Value Adjustment Boards favor evidence
3. New Jersey: 63% - High taxes motivate quality appeals
4. Illinois: 61% - Cook County particularly appellant-friendly
5. California: 60% - Prop 13 creates assessment disparities

Moderate Success States (40-59%)

• Georgia: 52%
• New York: 50%
• Pennsylvania: 48%
• Ohio: 47%
• Michigan: 45%

Lower Success States (<40%)

• Mississippi: 32% - Infrequent reassessments
• West Virginia: 35% - Limited comparable data
• Alabama: 36% - County variation
• Arkansas: 38% - Strong caps limit overassessment

Why State Differences?

• Appeal process structure
• Evidence requirements
• Reassessment frequency
• Market volatility
• Taxpayer rights laws

Evidence Quality Impact

Professional Evidence Packet Success

Analysis of 50,000 appeals with evidence packets:

• Success rate: 62%
• Average reduction: $92,000 in assessed value
• Average savings: $1,523/year
• ROI on $49 packet: 3,100%

Components That Win

1. Comparable Sales (Most Critical)

• 10-20 recent sales
• Similar properties only
• Adjusted for differences
• Within 1 mile preferred

1. Error Documentation

• Incorrect square footage: 78% win rate
• Wrong features: 71% win rate
• Classification errors: 83% win rate
• Lot size mistakes: 75% win rate

1. Market Analysis

• Declining values proof
• Oversupply documentation
• Time adjustments
• Neighborhood trends

1. Condition Evidence

• Deferred maintenance
• Functional obsolescence
• Photos with dates
• Repair estimates

Common Reasons Appeals Fail

Top 10 Failure Reasons

1. No evidence (just opinion) - 85% fail
2. Poor comparables (not similar) - 70% fail
3. Missing deadline - 100% fail
4. Wrong forms - 90% fail
5. Emotional arguments - 80% fail
6. Cherry-picked data - 75% fail
7. No market support - 72% fail
8. Incomplete filing - 88% fail
9. Prior appeal loss (same grounds) - 82% fail
10. Assessment below market - 95% fail

Red Flags That Hurt Success

• "My taxes are too high" without data
• Comparing to different property types
• Using Zillow as only evidence
• Attacking the assessor personally
• Claiming inability to pay
• Political arguments

How to Maximize Your Odds

Before Filing

1. Verify assessment accuracy - Check all details
2. Gather evidence early - Don't wait for deadline
3. Research comparable sales - Quality over quantity
4. Document everything - Photos, dates, details
5. Understand the process - Know your county's rules

Evidence Preparation

• Get 10-20 comparable sales
• Calculate accurate adjustments
• Create professional presentation
• Include all required forms
• Submit before deadline

During the Appeal

• Be professional and factual
• Present evidence clearly
• Answer questions directly
• Don't argue or get emotional
• Be prepared for questions

Success Rate by Approach

Real Success Stories

Case Study 1: Texas Homeowner

• Situation: Assessment increased 45% in one year
• Evidence: 18 comparable sales showing 15% increase
• Result: Won - Reduced increase to 15%
• Savings: $2,340/year

Case Study 2: Florida Retiree

• Situation: Waterfront assessment seemed high
• Evidence: Flood zone impact, seawall issues
• Result: Won - 22% reduction
• Savings: $3,120/year

Case Study 3: New Jersey Family

• Situation: Post-revaluation spike
• Evidence: Interior condition, outdated systems
• Result: Won - $75,000 reduction
• Savings: $1,875/year

Take Action Now

With success rates heavily favoring prepared appellants:

1. Don't accept overassessment - 47% win overall
2. Get professional evidence - 62% win with packets
3. File before deadline - 0% win if late
4. Present facts, not feelings - Data wins appeals

Frequently Asked Questions

What are my actual odds of winning an appeal?

With proper evidence, 50-70%. Without evidence, 10-20%. The national average of 47% includes both prepared and unprepared appeals. Your individual odds depend entirely on evidence quality and whether you're actually overassessed.

Do most people who appeal win?

No, but most people who appeal with evidence do win. The key distinction: 85% of appeals filed without supporting evidence fail, while 62% with professional evidence succeed.

Is a 50% success rate good?

Yes! Consider that successful appeals save an average of $1,500+/year indefinitely. Even with 50% odds, the expected value is highly positive. The small cost and effort versus potential savings makes it worthwhile.

Do counties expect a certain percentage to lose?

Yes, most counties budget for appeal losses. They know mass appraisal has error rates. Well-run assessment offices expect 5-10% successful appeals as normal. This isn't adversarial - it's error correction.

Should I appeal every year?

If you have evidence of overassessment, yes. Success rates don't decrease for serial appellants if evidence is valid. Many commercial property owners appeal annually as standard practice.

Related Articles

• What Evidence Do I Need for Property Tax Appeal?
• Is It Worth Appealing Property Taxes?
• What Are Valid Reasons for Property Tax Appeal?

Success rates based on analysis of public appeal records, industry surveys, and AppealDesk customer data 2020-2025. Individual results vary based on circumstances and evidence quality.