If your property tax bill jumped this year, you're not alone. Most homeowners have never challenged their assessment, and more than half didn't even know they could. The good news: you can challenge that number. The better news: you don't have to do it yourself.
A property tax consultant can handle the appeal for you, but not all firms work the same way. This guide breaks down the types of consultants available, how they charge, and what to look for so you can make the right choice.
Key Takeaways
Most consultants work on contingency. Meaning, you pay only if they save you money.
74% of U.S. homeowners have never appealed
, and most didn't know they could.
Look for transparent fees, local expertise, and published success rates.
Non-protesting homeowners left $3.3 billion unclaimed across 17 Texas counties over three years.
What Is a Property Tax Consultant?
A property tax consultant reviews your home's assessed value and files an appeal on your behalf if it's higher than fair market value. Depending on the state, this process is called a "protest" (Texas), a "grievance" (New York), or simply an "appeal".
These professionals handle everything: gathering comparable sales data, preparing evidence, filing paperwork, and representing you at hearings. Their goal is to lower your assessed value, which directly reduces your annual tax bill.
One important distinction: consultants challenge your property's assessed value, not the tax rate itself. Local governments set property tax rates, but the value your home is assessed at determines how much you owe.
This article focuses on residential appeals. However, Ownwell also handles commercial tax appeals for business properties and helps homeowners capture savings through property tax exemptions, but the evaluation criteria differ.
How Much Are You Over Paying?
Types of Property Tax Consultants
Not all firms offer the same level of service, and since property taxes vary significantly by state and county, local expertise matters. Here's how the landscape breaks down:
Tech-Driven Companies | Regional/Local Firms | Real Estate Attorneys | Independent Appraisers | |
|---|---|---|---|---|
Services: | End-to-end appeals at scale | Full-service in a specific market | Appeals as part of a broader legal practice | Appraisal report only |
Typical fees: | 25-35% contingency | 30-50% contingency or flat fee + contingency | Hourly ($200-$500/hr) or a flat fee | $300-$600 flat fee |
Best for: | Most homeowners seeking a hassle-free process | Homeowners wanting local relationships | Complex, high-value, or contested cases | Homeowners filing their own appeal who need supporting evidence |
Geographic coverage: | Multi-state (10+ states) | One state or county area | Usually local | Local |
Tech-driven companies: These firms combine data analytics with local market expertise to handle appeals across multiple states. Ownwell is the leader with this model, using technology to identify overassessments and local professionals to navigate each jurisdiction's process.
Regional and local firms: They specialize in one area and often have relationships with local appraisal districts. The tradeoff is typically higher fees and limited geographic reach, but with less data.
Real estate attorneys: Best suited for complex situations, such as commercial valuations, properties with unique characteristics, or cases heading to court or arbitration. Hourly billing can add up quickly if your case requires a formal hearing.
Independent appraisers: They provide an independent valuation you can submit as evidence, but they won't handle the filing or hearing. You still do the work.
How Property Tax Consultants Charge
Understanding fee structures helps you compare firms on a level playing field. Here are the most common models:
Contingency fee: The industry standard for residential appeals. You pay a percentage of your first-year tax savings — typically 25% to 50%. If the consultant doesn't reduce your bill, you owe nothing.
Flat fee: A set amount regardless of the outcome, usually $150 to $500. Less common for residential work and riskier for homeowners since you pay even if the appeal fails.
Hourly billing: Typical for attorneys at $200 to $500 per hour. Costs can escalate if your case requires a formal hearing or multiple rounds of negotiation.
Hybrid models: Some firms charge a flat fee upfront plus a contingency percentage, or set mandatory minimums on contingency payouts.
Want to Try What Made Ownwell Famous?
Contingency Fee Example
Here's how a typical residential appeal breaks down, using a 2.1% effective tax rate typical of Texas counties:
Before Appeal | After Appeal | |
|---|---|---|
Assessed value: | $400,000 | $360,000 |
Tax rate: | 2.1% | 2.1% |
Annual tax bill: | $8,400 | $7,560 |
Annual savings: | — | $840 |
Now compare what you'd keep at different contingency rates:
At 25% contingency (Ownwell's rate): You pay $210 and keep $630.
At 40% contingency: You pay $336 and keep $504.
At 50% contingency: You pay $420 and keep $420.
That fee gap compounds every year the lower assessment holds.
Watch for this red flag: Some contracts calculate contingency on multi-year "projected savings" rather than your actual first-year reduction. That means you could pay far more than the percentages above suggest.
Interestingly, cost isn't the main barrier for most homeowners considering outside help. Among homeowners who distrust third-party appeal services, only 20% doubt that a firm can deliver results. The bigger hesitations are a preference for handling things themselves (42%) and privacy concerns (39%).
That's why transparency in pricing, process, and data handling matters more than the fee percentage alone.
Is Hiring a Property Tax Consultant Worth It?
Most homeowners never challenge their tax bill at all. Ownwell's national homeowners survey found that 74% have never filed an appeal, and 57% of those didn't even know they had the right to.
That inaction has a measurable cost. Ownwell's three-year analysis of 17 Texas counties showed that homeowners who didn't protest from 2023 to 2025 left a combined $3.3 billion in potential savings unclaimed. In Dallas County alone, non-protestors had assessed market values that were 6.46% higher than those of those who successfully protested by 2024.
The math gets harder to ignore over time. Every year you don't appeal, you're accepting a potentially inflated baseline that future assessments build on.
Professional representation generally produces stronger outcomes because firms have access to better comparable sales data and understand local assessor practices.
Ownwell's 2025 Texas performance data reveals that our customers consistently keep more money in their pockets per successful protest than homeowners who use traditional firms, largely because of lower contingency rates and no mandatory minimums.
And with contingency pricing, there's no financial risk. If the consultant doesn't reduce your assessment, you pay nothing.
How to Choose the Right Property Tax Consultant
Not all firms are created equal. Use this checklist to evaluate your options:
Fee structure clarity: Is the fee based solely on first-year savings? Ask about minimums, cancellation fees, and multi-year charges before you sign anything.
State-specific expertise: Your consultant should operate in your state and understand local deadlines, rules, and terminology. An appeal in Texas follows a different process than a grievance in New York.
Track record and transparency: Look for published success rates, average savings figures, and verified customer reviews.
In Austin-area counties, Ownwell's 2025 performance data shows a clear gap: Ownwell customers with homes valued $250,000-$500,000 kept 48% more in net savings per successful protest than homeowners who used traditional firms.
Scope of service: Some firms handle everything — filing, evidence, and hearings. Others only prepare your evidence and leave the rest to you. Know what you're getting.
Risk protections: In states like Washington and Georgia, a failed appeal can trigger a reassessment that raises
your taxable value. The right consultant reviews market data before filing and may decline to file if the risk outweighs the reward.
Communication and reporting: Will you receive updates on your case? Can you see your savings history? A lack of communication is one of the most common complaints about traditional tax protest companies.
These criteria matter because most homeowners aren't confident they can navigate the process on their own. Our survey of Texas homeowners found that only 18% of those who've never protested are very confident they could succeed without help, while 40% express doubt. Clear, trustworthy service attributes, like transparent fees, proven results, and accessible support, make the difference.
DIY vs. Professional Help: A Side-by-Side Comparison
DIY Appeal | Hiring a Consultant | |
|---|---|---|
Time required: | 5-20+ hours (research, paperwork, hearing) | Minimal — you provide property details, the firm handles the rest |
Expertise needed: | Understanding of comparable sales, local assessment methods, and hearing procedures | None — the firm brings the expertise |
Cost: | Free (your time aside) | Contingency fee (typically 25-50% of savings) |
Comparable sales data: | Limited to public records | Professional-grade databases and analytics |
Best for: | Simple errors (wrong square footage), low-value homes, homeowners with appraisal experience | Busy homeowners, complex valuations, high-value properties, repeat appellants |
Risk: | You bear the full burden of building a strong case | The firm manages the case and absorbs the risk through contingency pricing |
There's no wrong answer here — it depends on your time, comfort level, and property value. Our national homeowner survey shows that among homeowners who have appealed, 53% handled it themselves, 19% used a tax firm, and 17% hired a lawyer. But professional representation tends to achieve larger reductions, particularly for complex cases or high-value homes.
DIY can work well when the issue is straightforward — a factual error, such as incorrect square footage or lot size. If you want to try it yourself, start with our guide on how to file a property tax appeal.
But if your home's valuation involves subjective judgment calls, a professional with access to robust comparable sales data will likely build a stronger case.
Across Texas, Ownwell customers achieved higher success rates and larger net savings per protest than homeowners represented by traditional firms, particularly for homes valued between $250,000 and $1 million.
How Ownwell Can Help
Ownwell handles the entire appeal process — from identifying whether your home is overassessed to filing the appeal, gathering evidence, and representing you at hearings.
Our service operates on a contingency fee (25% in most states, 35% in some) with no upfront costs: if you don't save, you don't pay.
With over 1 million appeals processed across 10+ states and a 4.7-star rating across 3,000+ Google reviews, Ownwell combines proprietary technology with local tax experts in every jurisdiction it serves.
See how Ownwell's results compare to those of other Texas firms or how the cost of not protesting compounds over time.
FAQ
How Much Do Property Tax Consultants Charge?
Most residential consultants charge a contingency fee, typically 25% to 50% of your first-year tax savings. You pay nothing if they don't reduce your bill. Some firms charge flat fees or hourly rates, which are more common for attorneys and complex cases.
Can My Taxes Go Up if I Appeal and Lose?
In most states, no. Your assessed value stays the same if the appeal is unsuccessful. However, in Washington and Georgia, a failed appeal can trigger a reassessment that raises your taxable value. A good consultant will evaluate this risk before filing.
What's the Difference Between a Property Tax Appeal and a Protest?
They're the same process — just different terminology by state. Texas calls it a "protest", New York calls it a "grievance", and most other states use "appeal."
Is It Worth Hiring a Consultant for a Lower-Value Home?
It depends on your local tax rate and the extent to which your assessment exceeds market value. Even modest reductions on a $250,000 home can save $200 to $500 per year with minimal effort on your part, and with contingency pricing, there's no cost if the appeal doesn't succeed.
How Long Does the Appeal Process Take?
Timelines vary by jurisdiction. Informal reviews may be resolved within weeks, while formal hearings can take several months. Cases that escalate to court can take a year or longer. Your consultant should give you a realistic timeline based on your local market.
