Ownwell charges a flat 25% of your first-year savings, every year it works. Here is every other route a Harris County homeowner actually has — including doing it yourself for nothing, and a $39 one-time evidence kit.
Check your home FREE →Competitor fees on this page were read off Ownwell’s own published cost breakdown on 24 August 2026 and are linked below. Fees change; check the source before relying on any of them.
The short answer. Ownwell’s fee is 25% of your first-year tax savings, with no upfront cost and no minimum. That is genuinely one of the lower contingency rates in Texas — by their own published figures, most firms charge 35% to 50%, and one of the largest firms operating in the Houston area charges 50%. The alternatives worth knowing about are: filing it yourself for free, a flat-fee evidence kit, another contingency firm, or an attorney if there is a genuine legal question. Which one is right depends far more on how much time you have than on the percentage.
Ownwell publishes their pricing plainly, which is more than most of the industry does. As of their 2026 cost breakdown:
Two things follow from that, and both are true at the same time. Their rate is competitive. And a contingency fee is charged again every single year the protest works — which is the part the percentage on its own does not tell you.
Take a homeowner who saves $1,200 a year on their tax bill, and keeps saving it because the protest is repeated annually.
| Route | Year 1 | 5 years | What you own afterwards |
|---|---|---|---|
| 25% contingency | $300 | $1,500 | Nothing — the work is theirs |
| 40% contingency | $480 | $2,400 | Nothing |
| 50% contingency | $600 | $3,000 | Nothing |
| $39 evidence kit | $39 | $39, or buy it again | The comparables, the forms and the filing record |
| Do it yourself, no kit | $0 | $0 | Whatever you assembled |
Illustrative arithmetic on a $1,200 annual saving. Your figure will differ. No route guarantees any reduction.
Ownwell make a fair point that deserves answering rather than dodging: a flat fee is paid whether or not the protest succeeds. Their own analysis of 2025/2026 Texas data reports that Houston-area homeowners paid over $1,000,000 in fees to minimum-fee firms for protests that produced no reduction. That is a real risk and it is right to raise it.
Here is our answer, and it is the reason the guarantee exists.
Our guarantee: no reduction, next year free. We guarantee the evidence, not the verdict — HCAD decides values. If you protest and HCAD doesn’t bring your market value down by at least $2,000, next season’s kit is free. Nothing to claim and no proof needed: in late August we check HCAD’s certified value ourselves and email you the free code.
The part that matters is “nothing to claim”. A guarantee you have to apply for is a guarantee designed not to be used.
There is also a difference in what the $39 buys. You are not paying someone to win a hearing. You are buying the comparable-property evidence and the completed forms, which are yours to keep and to reuse, and which exist whether or not HCAD moves. A contingency fee buys an outcome you do not control either.
You do not have to hire anyone. Texas law is unusually favourable to the homeowner here. Under §41.43(b), an unequal-appraisal protest is decided in your favour unless the appraisal district disproves it — and §41.43(b)(3) lets you make that case with the median appraised value of a reasonable number of comparable properties, appropriately adjusted.
Two more rules are worth knowing before you decide you need help. Under §41.461 you can demand HCAD’s evidence before your hearing. And under §41.67(d), anything they fail to hand over at least 14 days beforehand cannot be used against you.
Ownwell make this point themselves, and they are right: under §41.43 your assessed value cannot go up simply because you protested. The downside of trying is your time.
A protest argues your value is too high. An exemption takes a fixed amount off before the tax is calculated, and it is free to file. The homestead exemption alone takes $140,000 off your school-district value under §11.13(b), plus Harris County’s 20% local option under §11.13(n).
Across Harris County, HCAD’s public roll shows 1,157,293 single-family homes, and 328,310 of them have no homestead exemption on record — about 28%. That is not proof those owners are overpaying: rentals, second homes and recent purchases legitimately have none. But if it is the house you actually live in, filing is free, you file it yourself, and Texas lets you back-file two years with the difference refunded.
We fill out exemption forms at no charge — homestead, over-65, veteran and the rest. You sign and send them. You only ever pay for a protest kit.
This page would not be worth reading if it pretended otherwise.
We are a Houston homeowner and a piece of software that organises HCAD’s public appraisal roll. We are not agents and not attorneys, and we do not file anything for anyone. You sign your own forms and you file them yourself, by mail, in person, or online through HCAD’s iFile. No outcome is ever guaranteed — HCAD, not us, decides every protest and every exemption.
Filing the protest yourself costs nothing at all. Our $39 kit is a one-time charge for the evidence and the completed forms. Whether either is cheaper than 25% depends entirely on how much you save and for how many years — see the arithmetic above.
By their own published terms, no — no upfront cost and no minimum fee.
Yes. In Texas you may file your own protest in any year.
May 15, or 30 days after your appraisal notice was delivered — whichever is later (§41.44(a)). Never rely on a bare “May 15”; if your notice arrives late, you have longer.
Start with the free check. It takes about a minute, asks plain questions, needs no account, and nothing you type is kept. If it turns out you are not over-assessed, it tells you that too.
See also: every route compared side by side · O’Connor · Five Stone · Texas Protax · Home Tax Shield · Resolute.
Sources: Ownwell, “Texas Property Tax Protest Companies: A Cost Breakdown for 2026”, read 24 August 2026 · Harris County figures derived from HCAD’s public appraisal roll · statute text from the Texas Tax Code..