Travis Bunn
Founder, AppealDesk · Published November 11, 2026
DIY vs. Hiring a Property Tax Appeal Company: How to Choose
Updated November 11, 2026 · Fees checked November 11, 2026 · 10 min read
File it yourself if you can find recent sales of similar homes and meet your county's deadline; it costs mostly time. Hire a contingency firm if you want someone else to file and attend the hearing and accept giving up a share of the savings: Ownwell lists 25% to 35%, O'Connor 50% of the current year's tax savings. A flat-fee packet such as AppealDesk ($49) sits between them: the evidence is prepared for you, and you file it.
The three ways to appeal, side by side
| Do it yourself | Flat-fee packet | Contingency firm | |
|---|---|---|---|
| Who finds the sales and builds the case | You | The service, for your address | The firm |
| Who files and talks to the county | You | You | The firm, as your agent |
| Who attends a hearing | You | You | The firm |
| What you pay | $0, plus any county filing fee | A fixed price, $39 to $129 in the table below | A share of the savings, 25% to 50% in the table below |
| What you keep | All of the savings | All of the savings, minus the fixed price | The savings minus the firm's share |
In Texas the process is called a protest and in New York a grievance; the choice between these three paths is the same everywhere.
When doing it yourself is enough
Property tax appeals are built for homeowners to file on their own. Doing it yourself works well when:
- Your county's property record has a clear error, such as the wrong square footage or a bathroom you do not have. Fixing a record error does not require a market argument.
- Several similar homes on your street or in your subdivision sold recently for less than your assessment implies, and you can find those sales in public records.
- You have the evenings to pull sales, read your county's rules and fill in the form before the deadline, and you are willing to present your case.
Start with your state's rules. Our state guides cover deadlines, forms and hearing steps, for example Texas (a protest to the appraisal review board), Georgia, California, Florida, Illinois and New York (a grievance).
When a contingency firm is the better choice
A firm that files for you and takes a share of the savings is the right call for some owners. It tends to fit when:
- You will not attend a hearing or deal with the county. A packet prepares the case, but you still file it and present it. If that part is the obstacle, a firm that acts as your agent removes it.
- The property is commercial, income-producing or unusual. Those appeals often turn on income and expense data or specialist valuation. AppealDesk prepares packets only for houses, condos and townhouses.
- The home is high value or the case is complex. When the dispute is large, paying a share for an experienced representative who negotiates for you can still leave you ahead.
- The appeal is headed past the county. State tax tribunals and courts have their own rules, and that is where many owners hire a property tax attorney.
Before you sign, read how the fee is calculated: whether it is a share of one year's savings or of every year the lower value holds, whether it applies by state or county (Ownwell's help center says its contingency fee varies by state), and how the agreement renews or ends.
When a flat-fee packet fits
A flat-fee packet is for the owner who is fine filing and presenting, but does not want to spend evenings finding and adjusting sales. It fits when:
- The property is a house, condo or townhouse you own.
- You want to keep all of the reduction, every year it holds.
- You are willing to file the form and attend an informal review or hearing if the county holds one.
AppealDesk is one of these. For $49 it emails an evidence packet built for your address (recent comparable sales, photos and a map of each sale, and the math against the county value), a filing guide for your county, a cover letter ready to sign, and a homeowner savings guide. The case is prepared for you; you file it and present it. AppealDesk is not a law firm, does not give legal advice, and does not contact the county or attend hearings for you. If our analysis finds your home is already assessed at or below market value and we recommend against filing, we refund your $49 on request, and you keep the full analysis. If you file and the county turns the appeal down, the $49 is not refunded. Those terms are in section 5 of our Terms. You can see every page of a real sample packet on our reviews page.
Other flat-fee packets sell for $39 to $129, listed in the table below. Compare what each one includes and what happens to your money if the answer is that you should not file.
What each option costs
Each fee below is quoted from the company's own page, checked November 11, 2026. Prices change, so confirm on the linked page before you buy.
| Option | Fee | If there is no reduction | Who files | Source (checked 2026-11-11) |
|---|---|---|---|---|
| File it yourself | No service fee. Some counties charge a filing fee. | Nothing beyond your time and any county fee. | You | Your county |
| TaxFightBack | $39 once; $79 Premium Appeal with hearing prep; 30-day money-back guarantee | Its page states a 30-day money-back guarantee | You | taxfightback.com |
| AppealDesk | $49 once | Refunded if our analysis finds you fairly assessed and recommends against filing; not refunded if you file and lose | You | appealdesk.com/terms, section 5 |
| Grove Hopper | $50 flat, one time | Not stated on the page we read | You | grovehopper.com |
| HomeTaxAppeal | $79 one-time evidence packet | Its page describes a no-reduction guarantee for eligible purchases | You | hometaxappeal.us |
| Abode Money | $99 per year | Its Savings Guarantee keeps working for free; it is not automatic and conditions apply | Abode, in select states | abodemoney.com/pricing |
| TaxDrop One | $129 per property per tax year, in parts or all of TX, CA, GA, FL, NJ and MD | Refunded if there is no reduction | You, with its evidence package | taxdrop.com |
| Ownwell | 25% to 35% of savings, $0 upfront; the fee varies by state | $0 | Ownwell | ownwell.com/competitors |
| O'Connor | 50% of the current year's tax savings | $0; its site says there is no fee unless your taxes are reduced | O'Connor (homeowners in TX, IL, GA, NY) | poconnor.com |
| TaxDrop Pro (17 Texas counties) | 1% of the assessment reduction | $0 | TaxDrop | taxdrop.com |
TaxDrop Pro charges on the reduction in assessed value, not on the tax saved, so it is left out of the example below.
A worked example (illustration)
Realtor.com's April 2025 protest report put the median saving from a successful protest at $539 per year. Here is what each fee model leaves you at that figure, and at a larger $2,000 first-year saving. The figures are arithmetic on the published fees; your own result will differ.
| Fee model | Fee on $539 | You keep | Fee on $2,000 | You keep |
|---|---|---|---|---|
| File it yourself | $0 | $539 | $0 | $2,000 |
| AppealDesk ($49 once) | $49 | $490 | $49 | $1,951 |
| Abode Money ($99 a year) | $99 | $440 | $99 | $1,901 |
| Contingency at 25% | $134.75 | $404.25 | $500 | $1,500 |
| Contingency at 35% | $188.65 | $350.35 | $700 | $1,300 |
| Contingency at 50% | $269.50 | $269.50 | $1,000 | $1,000 |
The break-even point is simple division. A 25% fee costs more than $49 once the first-year saving passes $196 ($49 divided by 0.25). At 35% the line is $140, and at 50% it is $98. Below those lines the percentage costs less; above them the flat fee costs less.
The other side of the ledger: if a filed appeal fails, a contingency firm charges $0, while a flat fee is already paid. With AppealDesk, the $49 comes back only when the analysis itself finds you fairly assessed and recommends against filing.
Where DIY filers actually get stuck
Homeowners who file their own appeals write to our support inbox with questions. Reading those threads, the same sticking points come up again and again. These are the recurring themes we see in customer questions, written in general terms; no customer is quoted or identified. The first two come up most.
1. Which notice, which value, which tax year
Filers mix up last year’s value, this year’s proposed value, and a value for a future year that has not taken effect yet. It gets worse when a second notice arrives partway through, or when the county website still shows an older figure than the notice in the mail.
What helps: Work from the notice in your hand: the value, the tax year and the deadline printed on it. If you never received one, the assessor’s office or website can tell you the current value and the last day to file.
2. Whether your own evidence counts
People ask whether a repair list, a recent purchase price, a refinance appraisal, their own tape-measure square footage, or a home-value website estimate will carry weight, and how to fit it into the filing. Owners who just paid for improvements also wonder whether that spending raises the value.
What helps: Boards weigh evidence about the property as of the county’s valuation date. An arm’s-length purchase close to that date is strong evidence of market value, whichever way it points. A record error, such as the wrong square footage, is worth raising with the record card next to your measurement. Online estimates rarely move a board on their own.
3. Whether the comparable sales are close enough
Filers question a sale that differs in size, lot, view, condition or remodeling, ask whether foreclosures count, and get stuck when the home is unusual. Many also learn late that the county values homes as of a set date and gives little weight to sales far from it.
What helps: Pick a few sales that are genuinely similar and close to the valuation date, and say how each one differs from your home. Our guide to finding comparable sales covers the details.
4. Assessed value, market value and capped value
The market value on a notice can go down while the taxable value goes up, because a cap or a freeze is catching up. In states that assess at a fraction of market value, the assessed number looks far below any sale price. Owners are unsure which number to compare with their neighbors’ sales.
What helps: Compare like with like. Convert the assessed value to the market value the county implies, using your state’s ratio, before you put it next to sale prices. Our assessment ratio table lists the ratio by state.
5. What to bring and say at the hearing or informal review
Hearing slots are short, and filers are not sure what to print, how to answer when the assessor calls, or how big a reduction to ask for. An informal talk where the assessor explains the method on the spot can leave them less sure than before.
What helps: Bring copies, a one-page summary and a specific value you can point to in the sales. Our hearing walkthrough covers what to expect in the room.
6. What to do after the decision
Filers ask whether to take a partial settlement offer, what a "no change" result means, and how to go to the next level, such as a state board, arbitration or court. Some do not know how long the county has to decide.
What helps: Measure any offer against the value your evidence supports. The decision letter usually states the next level and its deadline, and those deadlines are often short.
7. Deadlines and filing windows
Different sources give different dates, some filers find the window already closed, and some do not realize an informal review step can close before the formal deadline.
What helps: The date on your notice and the review board’s own page govern. Our deadline guide explains how windows work state by state.
8. Which form, which venue, and how to fill it in
Some counties offer more than one route: a board, a hearing officer, arbitration. Filers ask whether a letter counts or a form is required, whose name goes on the form when the home is co-owned or in a trust, which parcel number to use, and how to split the value between land and building.
What helps: Use the parcel number and owner names exactly as they appear on the notice, and the county’s own form and instructions.
None of these require a lawyer. They do take time, and they are the part a contingency firm or a prepared packet takes off your plate in different ways: the firm handles them for you, and the packet hands you the evidence already assembled, with a filing guide for your county.
Compare the services in more detail
- Best property tax appeal services: full-service firms, flat-fee packets and DIY, compared.
- Ownwell alternatives: other ways to appeal if you are weighing Ownwell.
- Flat fee vs. contingency: the two fee models in more depth.
- How to appeal your property taxes: the DIY process step by step.
Sources
- Fees: each company's own page, linked in the cost table, checked November 11, 2026.
- Median saving: Realtor.com protest report, April 2025.
- AppealDesk refund rule: Terms of Service, section 5.
- Sticking points: AppealDesk support inbox, read in general terms; no counts or customer details published.
This guide is general information, not legal advice.