Your county appraisal district can list four different numbers for the same house, and only one of them gets multiplied by your tax rate.
- Market value is what the appraisal district believes your home would sell for as of January 1.
- Appraised value is that market value after any limitation applies, such as the 10% homestead cap.
- Assessed value is the same number as your appraised value in Texas, though counties and homeowners often use it loosely to mean the number that gets taxed.
- Taxable value is the figure that actually drives your bill, and it equals assessed value minus every exemption you qualify for.
Read your notice line by line before protest season starts, because a number you do not understand is a number you cannot challenge.
Every spring, Texas homeowners open a document from their county appraisal district and find a grid of dollar figures that look almost the same but are not. One says market value. One says appraised value. One says taxable value. Sorting out assessed value vs taxable value in Texas is the difference between reading that page with confidence and guessing at what you owe.
The stakes are not small: property taxes collected statewide reached $81.4 billion in fiscal year 2023, and local rates are applied to taxable value after exemptions are deducted. If you want a plain-language walkthrough of how those numbers turn into a bill, Texas property tax help for homeowners starts with getting the vocabulary right.
What Is Assessed Value vs Taxable Value in Texas?
Texas uses four property tax value definitions, and they appear in a fixed order. Texas Tax Code Section 1.04 defines all four, and each is built from the one before it, so a change at the top ripples down to your bill. Understanding that sequence is the fastest way to stop confusing them.
Market Value
Market value is the price your property would bring in an open-market sale between an informed, willing buyer and seller, with neither under pressure. With few exceptions, appraisal districts must value property at market value as of January 1 under Tax Code Section 23.01. January 1 is a valuation date, so the number reflects what your home was worth that day even though you will not see it until spring.
Appraised Value
Appraised value is market value after any limitation in the Texas Tax Code is applied. For a home with an active residence homestead exemption, Section 23.23 holds the appraised value to the prior year’s appraised value plus 10%, plus the market value of any new improvements, and never above market value.
A separate circuit breaker limitation caps annual increases at 20% for certain non-homestead real property under a value ceiling the Comptroller adjusts each year, and that provision is set to expire after the 2026 tax year. If no limitation applies to your property, your appraised value and your market value are the same number.
Assessed Value
Assessed value causes the most trouble, though in Texas it is the simplest of the four. Tax Code Section 26.02 prohibits taxing units from assessing property at a fraction of its appraised value and requires assessment at 100 percent instead. Your assessed value is therefore the same number as your appraised value, not a separate calculation. The confusion comes from everyday use, where many county records and many homeowners say “assessed value” when they mean the number actually taxed, so check whether exemptions have already been subtracted before you assume anything.
Taxable Value
Taxable value in Texas is assessed value minus every partial exemption you qualify for. This is the number your local tax rate is applied to, and it is usually the smallest figure on the page. One wrinkle catches people off guard: exemptions are granted by individual taxing units, so the taxable value shown for your school district can differ from the taxable value shown for your county.
How Is Each Property Tax Value Calculated?
Knowing the definitions is one thing. Watching the math run in order is what makes the appraised value vs market value distinction click.
Appraisal districts start with mass appraisal, valuing thousands of properties at once using sales data, property characteristics, and neighborhood models rather than a walkthrough of your house. That produces your market value, and because the model is built for volume, it can lag behind what is happening in your local market. That lag is why the protest process exists, and why filing every year makes sense even when a value looks unchanged.
Next, the district applies any limitation. Say a homesteaded property carried a $400,000 appraised value last year and this year’s market value comes in at $500,000. The 10% cap holds the appraised value to $440,000 even though market value sits $60,000 higher. That gap belongs to homeowners who have held an active homestead exemption through a full base year, because the limitation takes effect on January 1 of the tax year following the year the owner qualified. A family that bought in 2025 will not see cap protection on their 2026 notice.
Finally, exemptions come off. Texas voters approved constitutional amendments in November 2025 that raised the general school district residence homestead exemption from $100,000 to $140,000 and increased the additional exemption for homeowners 65 or older or disabled from $10,000 to $60,000, bringing that combined exemption to $200,000.
Both changes took effect for the tax year beginning January 1, 2025, so they apply to 2025 tax bills rather than starting in 2026. Applying the $140,000 general exemption, that $440,000 assessed value becomes $300,000 of school district taxable value. A closer look at how Texas property tax exemptions work is worth your time if you have never audited yours.
Which Value Determines Your Texas Property Tax Bill?
Only taxable value. The formula is simple once the earlier steps are done: taxable value multiplied by the combined local tax rate equals what you owe.
Using the example above, and assuming a 2 percent combined rate purely for illustration, a $300,000 school district taxable value would produce roughly $6,000 before other taxing units are added in. Actual rates vary widely by jurisdiction, so treat that as arithmetic rather than a forecast. That is why assessed value vs taxable value in Texas is more than a vocabulary question: only one of those numbers is what your money gets measured against.
It also helps to know which office does what. The County Appraisal District determines values and handles protests. The County Tax Assessor-Collector is a separate office that mails the bill and collects payment, and sets no values at all. Tax rates are adopted by local taxing entities later in the year, after the appraisal side of the calendar closes. Mixing up those roles causes endless confusion, and a full breakdown of how Texas property taxes are calculated walks through the annual cycle.
5 Misconceptions About Assessed Value vs Taxable Value in Texas
These five mix-ups show up constantly, and each one has a real cost attached.
- “My appraised value is what my house is worth.” It is a mass appraisal estimate, and the appraised value vs market value gap is widest on capped homestead properties, where the appraised figure sits deliberately lower. Treating it as a listing price or a refinance figure will mislead you in both directions.
- “Assessed value and taxable value are the same thing.” Statutorily they are not. Assessed value sits before exemptions, and taxable value in Texas sits after them. County documents blur this constantly, so always look for whether exemption amounts have been deducted.
- “If my taxable value did not go up, there is nothing to protest.” The tax appraised value is the baseline the district builds every future year on. Even when a cap holds this year’s taxable value down, an inflated tax appraised value compounds into future bills, which is why annual protesting is worthwhile regardless of what the current number looks like.
- “I can protest my square footage error.” Record corrections such as wrong square footage, bedroom counts, or missing features are handled directly with the CAD as a separate administrative fix rather than through a protest. Getting them corrected still matters, because it means next spring’s tax appraised value is built on accurate data.
- “Filing my homestead exemption is part of protesting.” Exemption applications are also handled directly with the CAD and are not a protest action. Senate Bill 1801, effective September 1, 2023, requires chief appraisers to review each residence homestead exemption at least once every five tax years, so respond promptly to any verification request or you risk losing the exemption.
Why the Difference Matters When You Protest
A protest challenges one thing: your tax appraised value. Your Notice of Appraised Value labels the figure under dispute as “Market Value,” and that same figure is what licensed, local property tax professionals mean when they say tax appraised value. Everything downstream, including your assessed value and your taxable value, is arithmetic that follows from it.
For most homeowners, lowering the tax appraised value flows directly into a lower tax bill, because there is no cap gap sitting between the two numbers. A narrower group, typically long-tenured homestead owners whose market value has outrun the 10% cap for years, may see a reduction that does not change the current year’s bill. That reduction still does real work by resetting the baseline the district builds on next year, which is the compounding effect that makes protesting every single year the right call.
The evidence that moves a tax appraised value at a hearing is closed comparable sales from the 12 months before January 1 of the protest year, plus written contractor estimates for documented repairs. Estimates pulled from general real estate websites are not accepted, so comparables need to be homes that actually sold. Our guide to reading your Notice of Appraised Value breaks the document into sections, and the difference between tax appraised and market value goes deeper on why the two drift apart.
Frequently Asked Questions
A few questions come up repeatedly once homeowners compare their notice against county records.
Is assessed value the same as market value in Texas?
Not usually. In the appraised value vs market value comparison, market value is the district’s estimate of what your home would sell for on January 1, while assessed value equals your appraised value, which the 10% limitation may hold below market value on a homestead. Without a cap in play, the figures often match.
Why is my taxable value lower than my appraised value?
Exemptions. Each one you qualify for is subtracted from assessed value to produce taxable value, and the general school district homestead exemption alone removes $140,000 from the value taxed for schools. Because taxing units grant exemptions individually, one notice can list several different taxable values.
Does a higher appraised value always mean a higher tax bill?
No. Rates are set separately by local taxing entities after the appraisal cycle closes, and exemptions and limitations sit between your appraised value and your bill. Still, an inflated tax appraised value raises the baseline every future year builds on, so it is worth challenging on its own merits.
Can I protest my assessed value or my taxable value?
You protest the tax appraised value. Assessed value and taxable value in Texas are both calculated from it, so a reduction there is what moves the rest. Your right to protest that value is protected by state law, and the deadline is May 15 or 30 days after your notice is mailed, whichever is later.
What if the standard property tax value definitions do not match my county’s labels?
County appraisal districts apply these property tax value definitions inconsistently, and some display headings that appear nowhere in the Tax Code. When a label is unclear, work out what the number represents by checking whether limitations or exemptions have already been applied. Comparing your figures against the limits on how much your value can increase is a quick way to orient yourself.
See What These Numbers Mean for Your Home
Four values, one house, one bill. Once you understand assessed value vs taxable value in Texas, and how both trace back to appraised value and market value, your notice stops being intimidating and starts being useful. You know which figure is negotiable, which office to call, and which deadline applies to you.
Reading the page is one thing. Building the case takes closed sales data, adjusted comparables, and someone who knows how your county runs its hearings. Our licensed professionals do that work every year for every property we represent, whether or not the data looks promising at the outset. A modest upfront fee plus a percentage of the savings is what makes that commitment workable. Paying only on results sounds appealing, but it can quietly create a reason to set the harder cases aside. No company can legally promise a specific outcome, but we can promise a full protest and a straight answer about whether your tax appraised value is fair. If you are ready to stop guessing at what those numbers mean, get started with Home Tax Shield and let us take it from here.