Texas Property Tax Protest Calculator: Estimate Your Savings
Wondering how much you can save protesting property taxes? Your appraisal notice is an opinion, and you are allowed to disagree with it. Pick your county, enter the value on your notice, and drag down to your proposed market value to see what a successful protest could save you this year and over five years.
The slider starts at your appraised value. Drag it down to the value you plan to argue for, or use a typical outcome below.
Drag the value down to see your savings.
A lower value this year also lowers the starting point for future increases — even a modest reduction compounds. If your home has a homestead exemption, your taxable value can only rise 10% per year, so your actual savings may differ from this estimate.
Deadline: protests are generally due by May 15, or 30 days after your notice was delivered — whichever is later.
Estimates for illustration only. Actual taxes depend on your exemptions, the homestead cap, and each taxing unit’s adopted rates. Texas Ally Real Estate Group, LLC.
Can I actually save money by protesting?
Yes, and the odds are better than most homeowners assume. Filing costs nothing, most counties let you protest online, and a large share of pursued residential protests end in some reduction, often through an informal settlement before any hearing happens. Appraisal districts value hundreds of thousands of homes with mass appraisal models, and models miss things: a busy road, a dated kitchen, foundation trouble, or simply a bad comparable sale in the algorithm.
The savings also recur. A lower value this year becomes the starting point the district works from next year, and for homesteads it lowers the ceiling your capped assessed value climbs toward. That is why the estimator shows a five year figure alongside the annual one.
Common protest results
Reductions of 5 to 15 percent are the typical range for successful residential protests, and this Texas property tax appeal calculator shows what each looks like on a $400,000 appraised value at a 2.2 percent combined tax rate.
| Protest outcome | Value reduction | Annual tax savings | Five year savings |
|---|---|---|---|
| 5% reduction | $20,000 | $440 | $2,200 |
| 10% reduction | $40,000 | $880 | $4,400 |
| 15% reduction | $60,000 | $1,320 | $6,600 |
Five year figures assume the reduction simply carries forward, before any future increases or further protests. Your combined rate depends on your school district, city, and any special districts, so run your own numbers in the estimator above.
What makes a strong protest?
Evidence beats indignation. The strongest residential protests are built from a few specific exhibits: recent sales of genuinely comparable homes that closed below your appraised value, the appraised values of comparable neighbors when they sit below yours (the equal and uniform argument), photos and repair bids for condition problems the district cannot see from the street, your closing statement if you bought recently for less than the noticed value, and corrections to the property record itself, such as wrong square footage or features you do not have. Ask the appraisal district for the evidence packet it intends to use; you are entitled to it, and knowing their comparables lets you rebut them directly.
Should I protest every year?
For most homeowners, reviewing the notice every year and protesting whenever the value looks high is the right habit. There is no penalty for protesting, no limit on how often you can do it, and skipping a year lets an inflated value compound: next year’s increase gets applied on top of this year’s mistake. Homestead owners have an extra reason. The 10 percent cap means your taxable value often chases your market value upward for years, and every protest that trims the market value shortens that climb.
When a protest probably won’t help
Honesty saves you an afternoon. A protest is unlikely to pay off when the noticed value is already at or below what your home would sell for, when you just bought the home for more than the appraised value (your own closing statement is the district’s best evidence), or when your market value sits far above your capped assessed value, because a reduction that does not drop the market value below the assessed value will not change this year’s bill. It still lowers the ceiling for future years, so it can be worth doing, but do not expect savings on the current bill. And if the over-appraisal is tiny, weigh the savings against your time or a firm’s contingency fee.
Frequently asked questions
When is the deadline to protest in Texas?
May 15, or 30 days after your appraisal notice was delivered, whichever is later. If the deadline lands on a weekend or holiday, it rolls to the next business day. File with your county appraisal district, online where offered.
Can my value go up because I protested?
Protesting a residential value does not trigger an increase. At the hearing, the review board decides whether the evidence supports a lower value or leaves the noticed value in place. The realistic worst case for a homeowner protest is no change.
Do I need a protest company, or can I do it myself?
You can absolutely do it yourself, and many homeowners settle informally online without a hearing. Protest firms typically work on contingency and keep roughly 25 to 50 percent of the first year’s savings, which can be worth it if you do not have the time, but nothing they file is unavailable to you.
What is an equal and uniform protest?
It is the argument that your appraised value is higher than the appraised values of comparable properties, even if it matches market value. Texas law allows a protest on this basis alone, and it is often the strongest angle in neighborhoods where similar homes carry very different values.
If my homestead cap already limits my bill, is protesting pointless?
Not necessarily. The cap limits how fast your assessed value climbs, but it climbs toward your market value every year. Cutting the market value lowers the ceiling the cap is chasing, which can shorten the years of automatic 10 percent increases even when it does not change this year’s bill.
More Free Texas Homeowner Tools
Whether you’re protesting your appraisal, planning to sell, or simply comparing costs, our free calculators can help you make more informed decisions.