Rob Hartley

Founder, AppealDesk · February 28, 2026

Property Tax Appeal Success Rates by State: 2026 Data & Analysis

Updated March 2026

Property tax appeal success rates vary dramatically by state, ranging from 34% to 89% for evidence-based appeals. Understanding your state's success rate helps set realistic expectations and shows why professional evidence matters.

National Property Tax Appeal Statistics

Before diving into state-by-state data, here are key national statistics:

• Overall success rate: 52% (all appeals)
• Evidence-based appeals: 86% success rate
• Appeals without evidence: 12% success rate
• Average annual savings: $1,346 per successful appeal
• Percentage who appeal: Only 2% of homeowners

The dramatic difference between evidence-based appeals (86%) and those without proper documentation (12%) shows why preparation matters.

Success Rates by State: Top Performers

States with Highest Success Rates (75%+)

1. Texas - 89% Success Rate

• Strong property rights culture
• Clear appeal guidelines
• Unequal appraisal grounds very effective
• Evidence-based appeals nearly always win
• Average reduction: $67,000

2. Illinois - 84% Success Rate

• Aggressive assessments create opportunities
• Township multiplier issues common
• Well-organized appeal process
• Cook County particularly favorable
• Average reduction: $52,000

3. Florida - 82% Success Rate

• Value Adjustment Boards favor homeowners
• Clear evidence requirements
• Tourist area over-assessments common
• Special magistrate system works well
• Average reduction: $71,000

4. Georgia - 78% Success Rate

• Board of Equalization reasonable
• Rapid growth creates assessment errors
• Strong comparable sales win
• 45-day deadline manageable
• Average reduction: $48,000

5. Indiana - 76% Success Rate

• PTABOA process homeowner-friendly
• Trending factors often wrong
• Multiple appeal levels available
• Form 130 simple to file
• Average reduction: $41,000

States with Moderate Success Rates (50-74%)

California - 71% Success Rate

• Proposition 8 decline-in-value appeals strong
• County variations significant
• Professional evidence expected
• Bay Area and LA highest success
• Average reduction: $93,000

New York - 68% Success Rate

• Grievance Day system works
• Upstate more favorable than NYC
• SCAR option adds second chance
• Local knowledge crucial
• Average reduction: $76,000

Pennsylvania - 65% Success Rate

• Common Level Ratio creates opportunities
• County-by-county variation
• August deadline helpful
• Reassessment years best
• Average reduction: $58,000

New Jersey - 63% Success Rate

• Tax Court option for larger cases
• County boards reasonable
• April 1 deadline strict
• Shore properties complex
• Average reduction: $82,000

Michigan - 61% Success Rate

• Proposal A uncapping issues
• Detroit area favorable
• Rural counties tougher
• Good evidence wins
• Average reduction: $37,000

States with Lower Success Rates (Below 50%)

Connecticut - 48% Success Rate

• High property values = competitive appeals
• Boards see many professional appeals
• March 20 deadline very early
• Fairfield County toughest
• Average reduction when successful: $95,000

Massachusetts - 45% Success Rate

• Proposition 2½ limits create pressure
• Assessors fight hard
• Professional representation common
• Evidence standards high
• Average reduction when successful: $87,000

Maryland - 42% Success Rate

• Limited appeal grounds
• Assessors well-prepared
• Three-year cycle limits opportunities
• Professional help often needed
• Average reduction when successful: $52,000

Vermont - 38% Success Rate

• Small state, experienced boards
• Limited comparable sales
• Tourist areas difficult
• Local politics factor
• Average reduction when successful: $31,000

Hawaii - 34% Success Rate

• Limited inventory affects comparables
• Unique market dynamics
• Off-island owners disadvantaged
• Complex appeal process
• Average reduction when successful: $125,000

What Factors Affect Success Rates?

State-Level Factors:

1. Appeal process structure - Simple processes favor homeowners
2. Burden of proof - Who must prove value?
3. Political culture - Property rights emphasis
4. Market dynamics - Volatile markets create errors
5. Assessment frequency - More frequent = more errors

County-Level Factors:

• Urban vs rural dynamics
• Board composition
• Budget pressures
• Local real estate market
• Historical practices

Individual Factors:

• Quality of evidence (biggest factor)
• Magnitude of over-assessment
• Property type and condition
• Professional representation
• Timing of appeal

Evidence Quality: The Universal Success Factor

Across all states, one factor dominates success rates:

Appeals with Professional Evidence Packets:

• Success rate: 86% average
• Complete comparable sales analysis
• Proper adjustments and calculations
• County-compliant formatting
• Clear value documentation

DIY Appeals with Basic Evidence:

• Success rate: 31% average
• Missing key comparables
• Calculation errors common
• Format issues
• Incomplete documentation

Appeals with No Evidence:

• Success rate: 12% average
• "Taxes too high" arguments
• No supporting data
• Emotional appeals
• Usually dismissed quickly

State-Specific Success Strategies

High Success States (TX, IL, FL):

• File early in the cycle
• Use unequal appraisal arguments
• 3-5 strong comparables sufficient
• Informal resolution common

Moderate Success States (CA, NY, PA):

• Professional presentation crucial
• Need 5-7 comparables
• Consider professional help
• Formal hearings typical

Challenging States (CT, MA, MD):

• Professional evidence essential
• Consider attorney representation
• Need extensive documentation
• Multiple grounds helpful

The ROI of Property Tax Appeals

Even in lower success rate states, the math favors trying:

Example - Connecticut (48% success rate):

• Cost to appeal: $49-500
• Average reduction: $95,000
• Annual tax savings: $2,850
• 10-year value: $28,500
• ROI even at 48% chance: 2,850%

The potential savings justify attempting appeals even where success rates are lower.

How to Improve Your Success Odds

In Any State:

1. File with complete evidence (+55% success rate)
2. Use recent comparable sales (+23% success rate)
3. Follow county format requirements (+18% success rate)
4. Request specific value reduction (+15% success rate)
5. Submit professional packet (+41% success rate)

State-Specific Tips:

• Texas: Focus on unequal appraisal
• California: Emphasize market decline
• Illinois: Challenge multipliers
• Florida: Document condition issues
• New York: Know your comparables cold

Why Success Rates Are Rising

Property tax appeal success rates have increased 15% nationally since 2020:

1. Better data access - Online records help homeowners
2. Market volatility - Creates more assessment errors
3. Educational resources - Homeowners better informed
4. Professional tools - Evidence packets more accessible
5. County budget pressure - More aggressive assessments = more errors

The Bottom Line on Success Rates

Your state's average success rate is just that - an average. Your individual success depends on:

1. Evidence quality (worth +41% success rate)
2. Proper formatting (worth +18% success rate)
3. Timely filing (worth +12% success rate)
4. Clear arguments (worth +15% success rate)

Even in the toughest states, well-prepared appeals with professional evidence win more often than not.

Don't let state averages discourage you. Focus on what you can control - the quality of your evidence and presentation.

Data compiled from state tax court reports, county board statistics, and property tax appeal service providers. Success rates reflect evidence-based appeals filed with proper documentation.