How Much Can You Save by Appealing Property Taxes? Real Numbers by State
The average successful property tax appeal saves homeowners between $1,000 and $3,000 per year. Nationally, about 30% to 40% of homeowners who file an appeal get a reduction, and the median reduction is around 10% of assessed value. In high-tax states like Texas, New Jersey, and Illinois, the savings can reach $5,000 or more annually.
Those numbers are real. And the cost of filing is usually $0 to $50 in most jurisdictions.
TL;DR
- Average successful appeal saves $1,000 to $3,000 per year
- Success rates range from 30% to 60% depending on the jurisdiction
- The typical reduction is 5% to 15% of assessed value
- High-tax states (TX, NJ, IL, NY) see the biggest dollar savings
- Most appeals cost nothing to file, and the savings last for years
Average Property Tax Appeal Savings by State
Your savings depend on three factors: your home's assessed value, how much the assessment exceeds market value, and your local tax rate. Here's what homeowners actually save in some of the highest-tax states:
| State | Avg. Effective Tax Rate | Typical Assessment Reduction | Estimated Annual Savings |
|---|---|---|---|
| New Jersey | 2.23% | $30,000 - $50,000 | $670 - $1,115 |
| Illinois | 2.08% | $25,000 - $50,000 | $520 - $1,040 |
| Texas | 1.68% | $30,000 - $60,000 | $504 - $1,008 |
| Connecticut | 1.96% | $25,000 - $45,000 | $490 - $882 |
| New York | 1.62% | $30,000 - $60,000 | $486 - $972 |
| Ohio | 1.59% | $20,000 - $40,000 | $318 - $636 |
| Pennsylvania | 1.53% | $20,000 - $40,000 | $306 - $612 |
| Georgia | 0.92% | $25,000 - $50,000 | $230 - $460 |
| Florida | 0.86% | $25,000 - $50,000 | $215 - $430 |
| California | 0.71% | $40,000 - $80,000 | $284 - $568 |
These are conservative estimates. If your home is significantly over-assessed, or if your local millage rate is above average, your savings could be much higher.
What Determines How Much You Save
The Size of the Over-Assessment
This is the biggest factor. If your home is assessed at $400,000 but comparable sales show it's worth $340,000, you're fighting for a $60,000 reduction. At a 2% tax rate, that's $1,200 per year.
Homes are most often over-assessed after:
- A mass reassessment that used broad formulas instead of individual analysis
- A market decline that hasn't been reflected in assessments yet
- A recent purchase where the assessment jumped based on sale price alone
- Errors in the property record, like wrong square footage or an extra bathroom
Your Local Tax Rate
A $30,000 reduction in New Jersey (2.23% rate) saves you $669 per year. The same $30,000 reduction in Hawaii (0.27% rate) saves you only $81. Same effort, wildly different payoff.
This is why appeals are most popular in high-tax states. The financial incentive is stronger.
How Long the Reduction Lasts
In most states, a successful appeal resets your assessed value going forward. You don't save just once. You save every year until the next reassessment. In states that reassess every 3 to 5 years, a single successful appeal can save you $3,000 to $15,000 over the cycle.
Some states with assessment caps (like California's Prop 13) make a reduction even more valuable because the new lower base grows slowly.
Success Rates: Your Odds of Winning
The odds are better than most people think:
| Jurisdiction | Approximate Success Rate |
|---|---|
| Cook County, IL | 40% - 50% |
| Harris County, TX (Houston) | 60% - 70% |
| New York City | 30% - 40% |
| King County, WA (Seattle) | 35% - 45% |
| Maricopa County, AZ (Phoenix) | 45% - 55% |
| National average | 30% - 40% |
Harris County, Texas is notable because the appeal process is heavily used, and the appraisal district is known for aggressive valuations. More than half of appeals there result in some reduction.
Real Examples: What Homeowners Actually Saved
Example 1: Suburban Chicago, Illinois
Home assessed at $320,000. Owner found comparable sales showing $275,000 was more accurate. Filed at the county level and received a $35,000 reduction. At a combined tax rate of 2.3%, the annual savings came to $805. Over the 3-year assessment cycle, total savings: $2,415.
Example 2: Dallas, Texas
Home assessed at $450,000 after a mass reappraisal. Owner's comparable sales showed $390,000. Went to the ARB (Appraisal Review Board) and settled at $400,000, a $50,000 reduction. At a 2.1% tax rate, the annual savings: $1,050.
Example 3: Bergen County, New Jersey
Home assessed at $550,000. Owner hired an appraiser for $350 who valued it at $480,000. Tax court agreed on $490,000, a $60,000 reduction. At a 2.4% rate, the annual savings: $1,440. Minus the appraiser cost, first-year net savings: $1,090.
The Cost of Appealing vs. the Savings
| Cost Category | Typical Range |
|---|---|
| Filing fee | $0 - $50 |
| Professional appraisal (optional) | $300 - $500 |
| Attorney (optional) | $500 - $2,000 |
| DIY with evidence tool | $79 one-time |
Most homeowners who appeal on their own spend less than $100 total. The return on investment is almost always positive. If you spend $79 on an evidence packet and save $1,000 per year, that's a 12x return in year one alone.
When an Appeal Makes Financial Sense
An appeal is worth your time if:
- Your assessed value is at least 5% to 10% above what comparable homes sold for
- Your local tax rate is above 1%
- Your home has characteristics the assessor may have gotten wrong (square footage, condition, lot size)
- Your neighborhood has seen declining or flat sales while assessments went up
An appeal may not be worth it if your assessment is already below market value or if your local tax rate is very low (under 0.5%).
How to Maximize Your Appeal Savings
Build Strong Comparable Sales Evidence
The most persuasive appeals include 3 to 5 comparable sales from the past 6 to 12 months. Focus on homes that are similar in size, age, condition, and location. If your comps sold for less than your assessed value, you have a case.
Check for Errors First
Before you even build a comps argument, review your property record card. Wrong square footage, an extra half-bath, or a finished basement that's actually unfinished can inflate your assessment by tens of thousands. See our guide on checking your property tax bill for errors.
Combine With Exemptions
A successful appeal plus a homestead exemption produces the lowest possible bill. If you're over 65, add a senior exemption on top. These stack in most states.
Use an Evidence Packet, Not Just a Gut Feeling
Showing up and saying "my taxes are too high" doesn't work. You need documented evidence: comparable sales, photos, a clear written argument. PropertyTaxFight builds this for you for a one-time $79 fee.
What Happens After You Win
When your appeal succeeds, the assessor's office updates your assessed value. Your tax bill is recalculated based on the new, lower number. In most cases, you'll see the savings on your next bill.
If you pay through escrow, your mortgage company will eventually adjust your monthly payment down. This can take a billing cycle or two, but the reduction flows through.
Keep in mind: your new lower assessment typically stays in place until the next reassessment. In some jurisdictions, that's 3 to 5 years. So a $1,000 annual savings could mean $3,000 to $5,000 total before your next assessment.
Don't Leave Money on the Table
Most homeowners who appeal save money. The filing is free or nearly free. The process takes a few hours. And the savings last for years.
Start by checking whether your assessment is above market value. Our free assessment check takes two minutes and tells you whether you have a case worth pursuing.
Check your assessment now and see how much you could save.
Frequently Asked Questions
How Much Can You Save by Appealing Property Taxes? Real Numbers by State?
The average successful property tax appeal saves homeowners between $1,000 and $3,000 per year. Nationally, about 30% to 40% of homeowners who file an appeal get a reduction, and the median reduction is around 10% of assessed value. In high-tax states like Texas, New Jersey, and Illinois, the savings can reach $5,000 or more annually.
What should I know about average property tax appeal savings by state?
Your savings depend on three factors: your home's assessed value, how much the assessment exceeds market value, and your local tax rate. Here's what homeowners actually save in some of the highest-tax states:
What Determines How Much You Save?
This is the biggest factor. If your home is assessed at $400,000 but comparable sales show it's worth $340,000, you're fighting for a $60,000 reduction. At a 2% tax rate, that's $1,200 per year.
What should I know about success rates: your odds of winning?
The odds are better than most people think:
What should I know about real examples: what homeowners actually saved?
Home assessed at $320,000. Owner found comparable sales showing $275,000 was more accurate. Filed at the county level and received a $35,000 reduction.
How do they compare in terms of the cost of appealing vs. the savings?
Most homeowners who appeal on their own spend less than $100 total. The return on investment is almost always positive. If you spend $79 on an evidence packet and save $1,000 per year, that's a 12x return in year one alone.