Short answer: Across Dallas County, over-assessment clusters by city. Our analysis of public DCAD appraisal data found the highest rates in Richardson (about 20% of homes), Farmers Branch, and Mesquite, where homes are most often valued above truly comparable neighbors. The largest dollar gaps, though, are in Highland Park — where an over-assessed home is off by roughly $343,000 on average.
Richardson leads Dallas County at ~20% of homes over-assessed.
Highland Park has the largest dollar gaps — about $343,000 on average.
Even the city of Dallas, with 229,000 homes analyzed, runs over 15%.
A high city-wide rate doesn't mean your specific home is over-assessed.
Over-assessment is decided home-by-home against your own comparables.
Which Dallas-area cities are most over-assessed?
We analyzed Dallas Central Appraisal District (DCAD) records for hundreds of thousands of homes and compared each one to truly comparable neighboring properties — the same neighborhood, property class, and era of construction. Homes valued more than 10% above the median of their peer group were flagged as likely over-assessed, the same equal-and-uniform standard used in a Texas protest.
Because Dallas County is a patchwork of distinct cities, we grouped the results by city rather than ZIP code.
Share of over-assessed homes by Dallas-area city
Richardson20.4%
Farmers Branch19.1%
Mesquite16.5%
Carrollton16.2%
Garland15.9%
Sunnyvale15.4%
Dallas15.3%
Percentage of homes valued more than 10% above their comparable neighbors, by city (DCAD data, 2026).
How we measured over-assessment
Texas law says your home should not be appraised higher than comparable homes around it (Texas Tax Code §41.43(b)(3)). We applied that principle at scale:
We grouped every residential parcel with truly comparable homes — matched on DCAD neighborhood code, property class, and decade built.
Within each group, we found the median improvement value per square foot.
Any home more than 10% above its group’s median was flagged as likely over-assessed, and we estimated its gap.
These are estimates from public data, not official determinations — but they mirror the exact evidence an appraisal review board weighs in a protest.
Rate isn't the whole story: Highland Park vs. Richardson
Two very different cities top our lists in two different ways. Richardson has the highest share of over-assessed homes (about 1 in 5), but its average gap is modest. Highland Park has a lower share — yet its over-assessed homes are off by roughly $343,000 each, by far the largest dollar gaps in the county.
The lesson: in high-value cities, even a small percentage over-assessment is a lot of money. If you own an expensive home, a smaller-looking gap can still mean thousands of dollars a year in overpaid taxes.
What this means for your home
A high city-wide rate does not mean your home is over-assessed — and a low rate does not mean it isn’t. Every city on this list has thousands of homes, and over-assessment is decided property-by-property against your specific comparables.
The only way to know is to check your own address. If your home is valued above its comparable neighbors, that gap is money you may be overpaying in property taxes every year — and it’s the basis for a protest.
Dallas County cities by over-assessment rate (2026)
Tax Gaps TX has a free home check at app.taxgapstx.com/check — enter your address and, in about a minute, see your estimated over-assessment gap for Travis (TCAD) or Dallas (DCAD) county, based on public appraisal data and comparable homes assessed for less than yours. A specialist can then walk you through the evidence and whether it's worth protesting.
Does a high city rate mean my home is over-assessed?
No. Over-assessment is decided home-by-home against your specific comparable properties. A high-ranked city just means a larger share of homes there are over-assessed — your home could be fine, or a home in a lower-ranked city could be significantly over-assessed.
Why is Highland Park's dollar gap so much larger?
Highland Park has some of the most expensive homes in Texas, so even a modest percentage over-assessment translates into a very large dollar amount. Rate and dollar impact are two different things.
How do I check whether my own home is over-assessed?
Enter your address at app.taxgapstx.com/check. We pull DCAD appraisal data, find comparable homes assessed for less, and show your estimated gap — the evidence you'd use to protest.
Is this an official DCAD determination?
No. These are estimates built from public DCAD data for informational purposes. Confirm any figures with the Dallas Central Appraisal District before filing a protest.
Tax Gaps TX provides general information, not legal, tax, or financial advice. Deadlines and exemption amounts change; confirm current figures with your county appraisal district or the Texas Comptroller.
Short answer: If comparable homes in Dallas County are assessed lower than yours, it's a strong indicator your property might be over-assessed. You can challenge this by filing an "equal and uniform" protest with the Dallas Central Appraisal District (DCAD). This approach argues your property's value is unfair compared to similar homes, potentially lowering your 2026 property taxes.
Lower comps signal over-assessment.
Protest using "equal and uniform" grounds.
DCAD website is key for property data.
Verify protest deadline with DCAD.
Tools can help identify your 'gap'.
Why Do Lower Comparable Home Values Matter for Your Dallas County Appraisal?
When your home’s assessed value in Dallas County is higher than comparable properties, it suggests an over-assessment. Texas law, specifically Tax Code 41.43(b)(3), allows you to protest your property’s value on “equal and uniform” grounds. This means your home should be appraised at a value consistent with the average market value of comparable properties in your neighborhood.
The Dallas Central Appraisal District (DCAD) uses various methods to determine your property’s value, but sometimes their data doesn’t fully capture market nuances or recent sales. Your job in a protest is to present compelling evidence that shows your home is valued disproportionately higher than similar homes, giving you a strong case for a reduction.
Property Tax Protest Strategies in Dallas County
Market Value Protest
✓Argues your property's value is higher than its true market value.
✓Requires evidence of recent sales prices for your home or very similar properties.
✓Often used when market conditions have declined significantly.
Equal & Uniform Protest
•Argues your property's value is unfair compared to similar homes.
•Requires evidence of *assessed values* for comparable properties.
•Focuses on fairness relative to neighbors, not just absolute market value.
Understanding the distinction between Market Value and Equal & Uniform protests is key to a successful appraisal challenge.
How Can I Find Comparable Homes Assessed Lower Than Mine in Dallas County?
Gathering evidence of lower-assessed comparable homes is crucial for your protest. Here’s how you can find them:
DCAD Website: Start with the Dallas Central Appraisal District’s official website. You can search for properties by address or owner name and view their appraisal history, square footage, and other details. Look for homes in your immediate neighborhood that are similar in age, size, and condition to yours.
Public Sales Data: Real estate websites often provide recent sales data. While sales prices aren’t directly appraisal values, they can help you identify properties that might have been assessed lower post-sale.
Neighborhood Reconnaissance: Sometimes, a simple drive through your neighborhood can reveal properties similar to yours. Note their addresses and then look them up on the DCAD website.
Identifying truly comparable homes can be time-consuming. Our free tool at app.taxgapstx.com/check can help you quickly identify potential over-assessments in Dallas County by comparing your home to others assessed for less, based on public appraisal data.
What is an 'Equal and Uniform' Protest and How Does it Work?
An “equal and uniform” protest is a powerful tool under Texas law. Instead of arguing your home’s market value is too high, you argue that your property is appraised at a higher percentage of its market value than comparable properties. This means you are seeking to have your assessed value adjusted to be fair and equitable with other similar homes.
To win an equal and uniform protest, you’ll need to present evidence of at least five comparable properties that are:
Located in the same neighborhood or a similar market area.
Similar in age, size, and features to your home.
Assessed at a lower value per square foot or overall compared to your property.
This evidence is typically presented during an informal review with a DCAD appraiser or at an Appraisal Review Board (ARB) hearing. The goal is to show a clear disparity that warrants a reduction in your property’s assessed value.
What Are the Key Deadlines and Steps for Protesting Your DCAD Appraisal?
Understanding the protest timeline is critical for your 2026 Dallas County appraisal. The standard deadline to file a protest is May 15 or 30 days after your Notice of Appraised Value was mailed, whichever is later. Always verify this specific deadline with the Dallas Central Appraisal District (DCAD) directly, as dates can vary.
Here are the general steps:
Receive Your Notice: DCAD mails appraisal notices each spring, typically in April.
File a Protest: If you disagree with your appraisal, file a Notice of Protest by the deadline. You can usually do this online via the DCAD website.
Informal Review: Many homeowners have an opportunity for an informal meeting with a DCAD appraiser to discuss their concerns and present evidence.
Appraisal Review Board (ARB) Hearing: If you don’t reach an agreement informally, your case goes before the ARB, an independent panel that hears evidence from both you and DCAD.
Binding Arbitration or Lawsuit: If you’re still not satisfied with the ARB’s decision, you may have options like binding arbitration for residential properties or filing a lawsuit.
Tips for Preparing Your Evidence for a DCAD Appraisal Protest
A well-prepared protest relies on solid evidence. Here are some tips to strengthen your case:
Be Specific: When selecting comparable properties, aim for those that closely match yours in terms of square footage, lot size, construction type, age, and condition.
Document Everything: Take photos of any damage or deferred maintenance on your property that might affect its value. If your home has unique challenges (e.g., backing onto a busy road), document those too.
Consider Market Conditions: Provide evidence of market trends in your specific neighborhood. Have sales prices declined? Is inventory high?
Know Your Data: Be familiar with the appraisal values and details of your selected comparable properties. You’ll need to explain why they are good comparisons.
Stay Calm and Respectful: Whether in an informal meeting or an ARB hearing, present your case clearly and respectfully.
Is It Worth Protesting Your Dallas County Appraisal on Your Own?
Protesting your property appraisal can feel like a daunting task, especially when dealing with complex data and legal terminology. While many homeowners successfully protest on their own, understanding the nuances of Texas Tax Code and effectively presenting evidence can be challenging.
If you’re confident in your ability to research, gather, and present compelling data, a DIY approach can work. However, if you’re short on time, find the process intimidating, or want to maximize your chances of success, getting help can be a wise investment. Professional services specialize in property tax protests, often having access to extensive data and expertise in building strong cases.
If the process feels daunting, or you’re unsure how to best present your evidence, consider exploring services like Tax Gaps TX. Our free tool at app.taxgapstx.com/check can give you a head start by identifying your potential gap, and our specialists can guide you through the next steps.
Tax Gaps TX has a free home check at app.taxgapstx.com/check — enter your address and, in about a minute, see your estimated over-assessment gap for Travis (TCAD) or Dallas (DCAD) county, based on public appraisal data and comparable homes assessed for less than yours. A specialist can then walk you through the evidence and whether it's worth protesting.
How often can I protest my property value in Dallas County?
You can protest your property's value every year. The Dallas Central Appraisal District (DCAD) sends out new appraisal notices annually, giving you a fresh opportunity to review your assessment and file a protest if you believe it's too high or unequal.
What if I miss the protest deadline for DCAD?
Missing the protest deadline (May 15 or 30 days after notice, whichever is later) generally means you lose your right to protest for the current tax year. There are very limited exceptions, such as a clerical error by the appraisal district or a significant change in property use. It's crucial to mark your calendar and file on time.
Can I protest my Dallas County appraisal if I have a homestead exemption?
Yes, absolutely! Having a homestead exemption does not prevent you from protesting your property's value. In fact, a protest can further reduce your taxable value, even with the 10% homestead cap in place. You can still argue for a lower market value or an "equal and uniform" adjustment.
What is binding arbitration for property tax protests in Texas?
Binding arbitration is an option for residential property owners in Texas if they are not satisfied with the Appraisal Review Board's (ARB) decision. It involves an independent third-party arbitrator reviewing the evidence and making a final, legally binding decision on your property's value. There is a fee involved, and specific rules apply, so consult DCAD or the Texas Comptroller for details.
Tax Gaps TX provides general information, not legal, tax, or financial advice. Deadlines and exemption amounts change; confirm current figures with your county appraisal district or the Texas Comptroller.
Short answer: The most effective way to analyze Dallas County appraisal data for protests involves focusing on comparable property sales and unequal appraisal evidence. By comparing your home's assessed value to similar properties that sold for less or are assessed lower per square foot, you can build a strong case for reducing your property taxes. Always verify current data and deadlines with the Dallas County Appraisal District (DCAD) for the 2026 tax year.
Focus on comparable sales and unequal appraisal.
Gather evidence directly from DCAD's website.
Understand market value vs. unequal appraisal arguments.
Use tools like Tax Gaps TX to find your 'gap'.
Prepare for your ARB hearing with strong data.
Verify all deadlines, especially the May 15 protest date.
What Data Matters Most for a DCAD Protest?
When you protest your property taxes in Dallas County, you’re essentially challenging the Dallas Central Appraisal District (DCAD)’s assessment of your home’s value. There are two primary types of evidence that make for a strong protest:
Market Value Evidence: This argues that your home’s assessed value is simply higher than what it would actually sell for on the open market. You’ll need to find recent sales data for homes very similar to yours that sold for less than your assessed value.
Unequal Appraisal Evidence: This argument, often called ‘equal and uniform’ under Texas Tax Code 41.43(b)(3), claims that your home is assessed at a higher value compared to similar properties in your neighborhood, even if the market value assessment is theoretically correct. This is a powerful tool for homeowners.
Focusing on these two types of evidence will give you the best chance to succeed.
5 Steps to a Successful Dallas County Property Tax Protest
1
Gather Your Property Data & Assessment
Access your property's current assessed value and appraisal details directly from the Dallas County Appraisal District (DCAD) website.
2
Identify Strong Comparable Properties (Comps)
Search DCAD for similar homes that sold for less than your assessment or are assessed lower per square foot to support a market value protest.
3
Build Your Unequal Appraisal Case
Utilize Texas Tax Code 41.43(b)(3) by finding at least 5 comparable properties with lower per-square-foot assessments to prove unequal appraisal.
4
Know Your Deadlines & Exemptions
Verify the May 15 protest deadline with DCAD and ensure you've applied for all eligible exemptions to reduce your taxable value.
5
Prepare for Your ARB Hearing
Organize all your evidence, including comparable sales data and unequal appraisal findings, to present a clear and compelling case to the Appraisal Review Board.
Follow these key steps to effectively analyze Dallas County appraisal data and build a strong case for reducing your property taxes.
Where to Find Dallas County Appraisal Data
Your first stop for appraisal data should always be the official Dallas Central Appraisal District (DCAD) website. Here’s what to look for:
Property Search: Enter your address to view your property’s current assessed value, previous assessments, and details about your home (square footage, year built, lot size, etc.).
Sales Data: DCAD provides access to sales information that they use in their appraisals. While not always the easiest to navigate, this is a crucial source for finding comparable sales.
GIS/Map Search: This tool can help you identify neighboring properties and their characteristics, which is useful when looking for comps.
Remember that appraisal district data is public information, designed to be accessible to property owners.
How to Identify Strong Comparable Properties (Comps)
Finding good comparable properties (comps) is vital for both market value and unequal appraisal protests. Here’s what makes a strong comp:
Proximity: The closer the property is to yours, the better. Ideally, within your neighborhood or subdivision.
Similarity: Look for homes with similar square footage, number of bedrooms/bathrooms, age, construction style, and lot size.
Condition: Try to compare homes in similar condition. A fixer-upper isn’t a good comp for a newly renovated home, and vice-versa.
Sale Date: For market value arguments, recent sales (within the last 12-18 months, ideally closer to January 1 of the tax year) are most persuasive.
Focus on quality over quantity. Three to five truly strong comparable properties are better than ten weak ones.
Building Your Unequal Appraisal Case (Texas Tax Code 41.43(b)(3))
The unequal appraisal argument is often the homeowner’s strongest defense. It posits that your property is assessed at a higher percentage of its market value than a sampling of comparable properties. To build this case:
Identify 3-5 comparable homes in your neighborhood.
Note their assessed values and square footage from DCAD.
Calculate the assessed value per square foot for each comp (Assessed Value / Square Footage).
Compare your home’s assessed value per square foot to these comps. If yours is significantly higher, you have a strong case.
This method directly addresses fairness. If you’re wondering if your Dallas County home might be over-assessed based on unequal appraisal, our free tool at app.taxgapstx.com/check can help you quickly estimate your potential gap by analyzing public appraisal data and comparable homes assessed for less than yours.
Understanding Dallas County Deadlines and Exemptions
Staying on top of deadlines and exemptions is crucial for a successful protest. For the 2026 tax year:
Protest Deadline: The standard deadline to file your protest is May 15, 2026, or 30 days after DCAD mails your Notice of Appraised Value, whichever is later. Always confirm the exact date with DCAD.
Homestead Exemption: Make sure you’ve applied for and received your homestead exemption, which lowers your taxable value and provides a 10% cap on annual increases to your appraised value (for qualified homesteads). Exemption amounts and eligibility can change, so check the Texas Comptroller’s website or DCAD directly for current figures.
These details are not just bureaucratic hurdles; they are fundamental to protecting your property rights.
Preparing for Your ARB Hearing
If you don’t reach an agreement with DCAD during the informal review, your protest will proceed to a hearing with the Appraisal Review Board (ARB). Here’s how to prepare:
Organize Your Evidence: Have all your comparable sales data, unequal appraisal calculations, and any photos of property condition issues clearly labeled and ready to present.
Practice Your Presentation: Clearly and concisely explain why you believe your property is over-assessed, referencing your evidence.
Be Respectful and Prepared: The ARB members are volunteers. Present your case calmly and professionally. They will listen to your evidence and DCAD’s evidence.
If you disagree with the ARB’s decision, you may have further options like binding arbitration or appealing to district court, but most cases are resolved at the ARB level or earlier.
Key Evidence Types for a DCAD Property Tax Protest
Evidence Type
Description
Best Use Case
Comparable Sales
Recent sales prices of similar homes in your neighborhood that sold for less than your assessed value.
Challenging DCAD's market value assessment of your home.
Unequal Appraisal
Proof that your home is assessed higher per square foot than comparable properties in your area.
Challenging fairness under Texas Tax Code 41.43(b)(3).
Property Condition Issues
Photos and estimates for damage, needed repairs, or functional obsolescence (e.g., outdated features).
Demonstrating a lower true market value due to specific physical property issues.
Tax Gaps TX has a free home check at app.taxgapstx.com/check — enter your address and, in about a minute, see your estimated over-assessment gap for Travis (TCAD) or Dallas (DCAD) county, based on public appraisal data and comparable homes assessed for less than yours. A specialist can then walk you through the evidence and whether it's worth protesting.
Can I really protest my property taxes in Dallas County myself?
Yes, absolutely! Many Dallas County homeowners successfully protest their own property taxes. The key is to gather strong, relevant evidence and present it clearly to DCAD or the Appraisal Review Board. While it can feel intimidating, understanding the process makes it very doable.
What's the '10% cap' on appraisals in Texas?
The 10% appraisal cap, officially called the homestead cap, limits the annual increase in the appraised value of a qualified homestead property to no more than 10% of its value from the previous year. This cap only applies to your primary residence once you've received your homestead exemption, and it can significantly slow the growth of your property taxes.
How do I submit my protest to DCAD?
You can typically submit your protest online through the DCAD website, by mail, or in person. Many homeowners find the online portal convenient. Just be sure to meet the deadline, which is usually May 15 or 30 days after your appraisal notice, whichever is later.
What happens after I file a protest with DCAD?
After filing, DCAD will usually offer an informal review where you can discuss your case with an appraiser and potentially settle. If you don't agree, your case will proceed to a formal hearing with the Appraisal Review Board (ARB), where you present your evidence to a neutral panel. Most protests are resolved during these stages.
Tax Gaps TX provides general information, not legal, tax, or financial advice. Deadlines and exemption amounts change; confirm current figures with your county appraisal district or the Texas Comptroller.
Short answer: You can tell if your Texas property tax appraisal is too high by comparing it to recent sales of similar homes in your neighborhood, checking if your assessed value exceeds the 10% homestead cap, or if your home's condition doesn't match the appraisal. Look for differences between your appraised value and what comparable properties are assessed for, which could indicate an over-assessment.
Compare your appraisal to recent neighborhood sales.
Check for a 10% homestead cap violation.
Verify your home's condition matches the appraisal.
Look for unequal appraisals on similar homes.
Protest by May 15 (or 30 days) if over-assessed.
What Does "Too High" Even Mean for a Property Appraisal?
In Texas, your property tax appraisal can be considered “too high” in a couple of key ways. First, if the appraised value (what the county thinks your home is worth) is significantly higher than what your home would actually sell for on the open market today, based on recent comparable sales. This is often called the market value argument. Second, even if your market value is accurate, your appraised value might be too high if similar homes in your neighborhood are assessed for less. This is known as an equal and uniform appraisal issue.
For homeowners with a homestead exemption, there’s also a special protection: the 10% homestead cap, which limits how much your appraised value can increase each year.
Is Your Property Appraisal Overvalued?
County assessed value$550,000
Estimated fair value (comps)$495,000
The gap≈ $55,000 over-assessed
This visual highlights a common scenario where a property's assessed value exceeds its fair market value based on comparable sales, indicating a potentially overvalued appraisal.
How Do I Compare My Appraisal to My Neighbors? (Market Value)
One of the most effective ways to determine if your appraisal is too high is by looking at recent sales of comparable homes in your neighborhood. Your county appraisal district (CAD), like Travis Central Appraisal District (TCAD) or Dallas Central Appraisal District (DCAD), assesses your home’s value based on what they believe it would sell for.
Here’s what to look for:
Recent Sales: Find homes similar to yours in size, age, condition, and amenities that have sold in the last 12-18 months within your immediate area.
Assessment Values: Check the assessed values of those comparable properties. If your appraised value is notably higher than what similar homes recently sold for, or if your neighbors’ homes are assessed for significantly less, you likely have a case for over-assessment.
Gathering this data can be time-consuming, but it’s crucial evidence. For a quick check to see if you have a potential over-assessment gap based on public appraisal data and comparable homes assessed for less than yours, use the free tool at Tax Gaps TX. Just enter your address.
What is the 10% Homestead Cap, and How Does it Help?
If you have a homestead exemption on your primary residence, Texas law provides a significant protection: your home’s appraised value for tax purposes cannot increase by more than 10% per year, regardless of how much its market value might have jumped. This is called the homestead cap, and it kicks in starting the second year you have your homestead exemption.
For example, if your home was appraised at $300,000 in 2025 and you have a homestead exemption, your 2026 appraisal for tax purposes generally cannot exceed $330,000 (a 10% increase), even if the market value of your home has soared to $400,000. If your appraisal notice shows a taxable value increase greater than 10% for an established homestead, that’s a clear sign of an error.
Keep in mind that this cap only applies to qualified homesteads and does not apply to new home purchases in their first year of ownership, or to properties that are not primary residences.
What is an "Equal and Uniform" Appraisal, and Why Does it Matter?
Beyond market value, Texas Tax Code 41.43(b)(3) gives homeowners the right to protest their appraisal if it’s not “equal and uniform” with similar properties in their neighborhood. This means that even if the CAD says your home’s market value is accurate, you can argue that other similar homes are assessed at a lower value per square foot or overall, making your appraisal unfairly high.
This can be a powerful protest argument, as it focuses on fairness relative to your neighbors. You’ll need to identify comparable properties that are truly similar to yours (same general age, size, construction, condition, and location) but have lower assessed values. This suggests the appraisal district might be valuing your home inconsistently compared to others.
Key Red Flags That Your Appraisal Might Be Too High
Here are some common signs that your property tax appraisal might be higher than it should be for the 2026 tax year:
Significant Jump in Value: Your appraised value increased dramatically in one year, especially if you have a homestead exemption and it’s over the 10% cap.
Neighbors Assessed Lower: Similar homes in your immediate vicinity (same block or subdivision) have significantly lower appraised values, or sold for less recently.
Recent Purchase Price: You bought your home recently for less than the current appraised value. While the CAD isn’t bound by your purchase price, it’s strong evidence of market value.
Home Condition Issues: Your home has noticeable deferred maintenance, needs significant repairs, or has outdated features that aren’t reflected in a high appraisal.
Negative Market Trends: You’re aware of a slowdown in the local housing market, but your appraisal still increased significantly.
Incorrect Property Details: Your appraisal notice lists incorrect information about your home (e.g., wrong square footage, number of bedrooms, lot size, or amenities).
What Are the Deadlines to Protest My Appraisal?
If you believe your property tax appraisal is too high, it’s crucial to act before the deadline. In Texas, the standard deadline to file a protest with your county appraisal district (CAD) is May 15 or 30 days after your Notice of Appraised Value was mailed to you, whichever is later. However, deadlines can sometimes vary due to weekends, holidays, or specific county policies.
Always verify the exact protest deadline for your property by checking your official Notice of Appraised Value or contacting your specific county appraisal district (e.g., TCAD, DCAD) directly. Missing this deadline can mean you lose your chance to appeal for the current tax year.
Next Steps If You Think Your Appraisal is Too High
If you’ve identified signs that your property tax appraisal is too high, the next step is to prepare and file a protest with your county appraisal district. This involves gathering evidence to support your claim, such as comparable sales data, photos of your home’s condition, or details of unequal appraisals for similar properties.
The protest process typically involves an informal review with an appraiser, followed by a formal hearing with the Appraisal Review Board (ARB) if an agreement isn’t reached. For homeowners seeking an informed advantage, Tax Gaps TX offers a free home check at app.taxgapstx.com/check. In about a minute, you can see your estimated over-assessment gap for Travis or Dallas county. A specialist can then help you understand the evidence and whether protesting is worthwhile for your specific situation.
Signs Your Texas Property Tax Appraisal Might Be Too High
Sign of Potential Over-Assessment
What It Means for Your Property
Action You Can Take
Your Appraisal Jumped Significantly (e.g., 20%+) for 2026
Even with market growth, this might exceed the 10% homestead cap or indicate an error if you don't have a homestead.
Check your homestead cap and gather evidence of slower market growth or declining value.
Similar Homes in Your Neighborhood are Assessed Lower
Your property might be valued unequally compared to neighbors, violating Texas Tax Code 41.43(b)(3).
Identify 3-5 truly comparable homes with lower assessed values or recent lower sales prices.
Your Home's Condition Has Declined or Needs Major Repairs
The CAD may not be aware of issues affecting your home's true market value.
Document all damage, needed repairs, or outdated features with photos and contractor estimates.
You Recently Purchased Your Home for Less Than the Appraised Value
Your recent purchase price is strong evidence of the current market value.
Provide your closing documents (HUD-1 statement) as proof of market value.
Tax Gaps TX has a free home check at app.taxgapstx.com/check — enter your address and, in about a minute, see your estimated over-assessment gap for Travis (TCAD) or Dallas (DCAD) county, based on public appraisal data and comparable homes assessed for less than yours. A specialist can then walk you through the evidence and whether it's worth protesting.
Does buying my home recently for less than the appraisal automatically mean it's too high?
Not automatically, but it's strong evidence. While the CAD may argue your purchase was an outlier, a recent arms-length sale below the appraised value is a key piece of market value evidence that you should absolutely use in your protest.
How do I find comparable sales data for my neighborhood?
You can often find some sales data on your county appraisal district's website, but it might be limited. Real estate websites can also provide recent sales. For a more robust analysis, especially for finding unequal assessments, using a specialized tool or expert who can access more comprehensive data is often helpful.
What if my county appraisal district (CAD) ignores my evidence?
If you can't reach an agreement during the informal review, you have the right to present your evidence to the Appraisal Review Board (ARB). The ARB is an independent panel that will hear both your side and the CAD's side. If you're still not satisfied, you may have options like binding arbitration or judicial appeal, depending on the value of your property.
Can I protest my appraisal every year?
Yes, you absolutely can protest your property tax appraisal every single year if you believe it's too high. It's a fundamental right as a Texas property owner, and many homeowners successfully protest annually to ensure they're not overpaying.
What is the difference between market value and appraised value?
Market value is the most probable price a property would bring in a competitive and open market, assuming a fair sale. Appraised value is the value assigned by the CAD for tax purposes. While the CAD aims for the appraised value to equal market value, they often differ, especially for homesteads protected by the 10% cap or if the CAD's market analysis is flawed.
Tax Gaps TX provides general information, not legal, tax, or financial advice. Deadlines and exemption amounts change; confirm current figures with your county appraisal district or the Texas Comptroller.
