Form 50-132: How to File Your Texas Property Tax Protest

by | Apr 9, 2026 | Blog

Why Your Comal or Guadalupe County Appraisal Jumped (It’s Not Random)

Your Notice of Appraised Value just told you your home is worth $387,000. Last year it said $342,000. At Comal County’s current tax rate, that 13% jump is roughly $2,100 more out of your pocket, and you have 30 days to do something about it. Form 50-132 is the official Texas property tax protest form. It’s free to file, and you do not need a lawyer.

That spike on your notice feels personal, but it isn’t. Both the Comal County Appraisal District and the Guadalupe County Appraisal District rely on mass appraisal models that get updated annually. No appraiser has walked through your home. Nobody checked whether your HVAC is original, whether your roof has five years left or fifteen, or whether your kitchen still has laminate countertops from 2004. The model doesn’t know those things because nobody told it.

What the model does know is sales data. It anchors on closed transactions in your neighborhood and applies statistical adjustments across entire clusters of properties. So when a flipped house two streets over sells for $410,000 with quartz counters and new flooring, that sale pulls your appraised value upward even if your home hasn’t been updated in 15 years. The system treats your block as a unit, not your house as an individual.

This matters especially in Comal and Guadalupe counties right now. New Braunfels keeps expanding north and east. The I-35 corridor between San Antonio and Austin continues to draw buyers priced out of both metros. Bexar County spillover alone has pushed demand into Schertz, Cibolo, and Marion. All of that activity feeds the CAD’s sales database, and the model responds by raising values across the board.

The CAD is not trying to cheat you. Mass appraisal is a legitimate methodology required by state law. But it has a structural flaw: it systematically overvalues older or below-average homes sitting in appreciating neighborhoods. If your home is the worst on the block, the model doesn’t care. It sees the block.

That flaw gets compounded by data errors that are more common than most homeowners realize. Incorrect square footage is one of the most frequent problems in both Comal and Guadalupe CAD records. Wrong year built, wrong property class code, and uncorrected improvement records from prior owners all show up regularly. Maybe a previous owner pulled a permit for a garage conversion that never happened. Maybe your home is coded as having a finished basement when it’s a slab foundation. These errors inflate your appraised value silently, year after year, until someone catches them.

That someone has to be you. The CAD will not audit its own records on your behalf. The only mechanism Texas gives you to correct the record is the formal protest process, and form 50-132 property tax protest Texas is how that process starts. Once you understand what the model got wrong about your specific property, the evidence practically assembles itself.

Your Actual Deadline: What Counts, What Doesn’t, and Why 11:59 p.m. Matters

Texas property appraisal Comal County

The hard date is May 15, 2026. Miss it, and you cannot protest your property’s appraised value for the entire tax year. No extensions, no appeals, no second chances. That single missed deadline is the most expensive mistake a Texas homeowner can make in this process. But the full rule under Texas Tax Code §41.44 contains a provision many homeowners overlook: your deadline is May 15 or 30 days after your Notice of Appraised Value was delivered, whichever is later. If your county’s appraisal district mailed your notice on April 25, your actual deadline extends to May 25. Check the postmark date on the envelope you received. That date controls your personal filing window.

The method you choose to file your form 50-132 property tax protest Texas determines exactly what “on time” means.

Online Filing

Comal CAD (New Braunfels): The iFile system through Texas.gov accepts electronic protests. The timestamp recorded by the system is the controlling date. If you submit at 11:47 p.m. on May 14, that filing is timely, regardless of when a human at the appraisal district opens the file the next business day. Guadalupe CAD (Seguin): Confirm directly with Guadalupe CAD whether their portal supports electronic filing for the current tax year. If e-filing is not available, you must mail or hand deliver your completed 50-132 to their office at 3000 N. Austin St., Seguin, TX 78155.

USPS Mail

The postmark is what matters, not the delivery date. A letter postmarked May 15 and received May 19 is timely. A letter dropped in a mailbox on May 15 but not postmarked until May 16 is late. The cleanest protection: send your form via USPS Certified Mail with a return receipt. That receipt is your proof and eliminates any dispute about when the envelope entered the postal system.

Hand Delivery

Both Comal CAD and Guadalupe CAD accept walk-in filings during business hours. If you’re delivering on the final day, confirm the office closing time in advance. A form slid under a locked door at 5:15 p.m. has no timestamp and no witness. Arrive early, get a date-stamped copy for your records, and walk out knowing it’s done.

Your filing method determines your proof, and your proof determines whether a late challenge has any legs. Pick the method that gives you an indisputable record. With your deadline locked in, the next step is completing the form itself. Every field on it matters more than most homeowners expect.

Form 50-132, Field by Field: What to Write and Why It Matters

You have the form in front of you. Maybe you printed it from the Texas Comptroller’s website, or maybe you’re staring at the version that came stapled to your Notice of Appraised Value. Either way, every blank field on this page carries weight. Fill it out carelessly and you hand the appraisal district easy reasons to slow your protest down. Fill it out with precision and you walk into your hearing with momentum before you say a single word. Here is exactly what to write in each section, and why.

Property Owner Information and Account Number

The owner name you write must match the name on file with your county appraisal district. Not your nickname. Not a former married name. The exact legal name tied to the property account. A mismatch won’t void your protest outright, but it can trigger processing delays that push your hearing date later in the season, when appraisal review board schedules are packed and patience is thin. Pull your account number directly from your Notice of Appraised Value or from the CAD’s online search portal. In Comal County, that means the Comal CAD website. In Guadalupe County, use the Guadalupe CAD’s online property search. Copy the number character by character. Transposing two digits sends your protest into someone else’s file.

Consider Maria in Spring Branch. Her Notice of Appraised Value lists her name as “Maria L. Gutierrez,” but she commonly goes by “Maria Gutierrez Lopez.” She needs to write the name exactly as Comal CAD has it: Maria L. Gutierrez. Simple, but the kind of detail that trips people up every filing season.

Property Description

This field asks for the address and legal description of the property. Copy both from your notice or CAD record. Do not paraphrase the legal description or try to simplify it. If the CAD record says “Lot 14, Block 3, River Crossing Estates, Phase II,” that is what you write. The property description confirms which parcel you are protesting, and any ambiguity here gives the district a reason to ask for clarification instead of scheduling your hearing.

Grounds for Protest: The Most Important Checkboxes on the Form

This is where most homeowners either sell themselves short or freeze up entirely. The form 50-132 property tax protest Texas filers submit offers two distinct legal tracks, and you should almost always check both.

“Value is too high” means your home would not sell for the amount the CAD says it’s worth. This is a market value argument. You are saying: if I listed this house tomorrow, no reasonable buyer would pay the appraised figure. Maria in Spring Branch, whose Comal CAD record lists her home at $425,000, would check this box if comparable sales in her area closed between $360,000 and $385,000 in early 2025.

“Value is unequal compared with other properties” is a different claim. Here, you are not arguing about what your home would sell for. You are arguing that the appraisal district taxed your home at a higher ratio of market value than similar properties nearby. James in Schertz, whose Guadalupe CAD record still lists a pool that was demolished in 2019, would check this box because his appraised value includes an improvement that no longer exists, putting his assessment out of line with neighbors who have accurate records.

Check both boxes unless you have a specific, strategic reason to limit your protest to one track. Checking both preserves your ability to argue whichever angle proves stronger at your hearing. Leaving one unchecked closes a door you may wish you’d left open.

Evidence Description: Be Specific or Be Ignored

The evidence description field is not a comment box. Do not write “I disagree with the value.” That sentence tells the appraisal review board nothing and gives them no reason to take your case seriously. Instead, write something concrete.

Maria’s entry might read: “Attached: three closed sales within 0.5 miles, Jan. through Apr. 2025, average $362,000. CAD record shows 2,400 sq ft; county deed records show 2,200 sq ft. Supporting documents enclosed.” That single paragraph tells the board she has comparable sales data, she has identified a factual error in the CAD’s records, and she has documentation ready. James in Schertz might write: “CAD record includes a pool (improvement added 2004) that was removed in 2019. Attached: demolition permit, before/after photos, and three comparable properties without pools appraised below subject property.”

Specificity signals preparation. Preparation signals that settling with you early, at a fair number, is easier than fighting you at a formal hearing.

Requested Value: Never Leave This Blank

The form asks what you believe the property’s value should be. Many homeowners skip this field, thinking it’s optional or that naming a number will lock them in. Leaving it blank is a mistake. Your requested value anchors the negotiation. If you write nothing, the starting point defaults to the CAD’s number, and you negotiate down from their position. If you write a well-supported figure, the conversation starts closer to the middle.

Maria, armed with her comparable sales averaging $362,000, should write $362,000. James, whose property without a pool aligns with neighbors appraised at $310,000, writes $310,000. These numbers are not binding offers. They are opening positions backed by evidence, and they force the appraiser to respond to your data rather than simply defend their own.

Agent Authorization: Leave It Alone Unless It Applies

The agent authorization section exists for homeowners who hire a representative to handle their protest. If you are filing on your own behalf, leave every field in this section blank. Checking boxes here incorrectly, or filling in partial information, can create confusion about who has authority to act on the protest. That confusion translates to delays: rescheduled hearings, requests for clarification letters, lost weeks during a season where every week matters.

If you are using a service to file on your behalf, they will handle this section. Your job is to not touch it.

Form 50-132 Field Reference Block, Comal County Example

This annotated block mirrors the actual form layout. Each field shows the field name, what to write, and a filled-in example based on a Spring Branch, Comal County property.

Field: Property Owner Name

What to write: Exact legal name as it appears on your CAD account. No nicknames, no variations.

✎ Maria L. Gutierrez

Field: Property Account Number

What to write: Copy character-by-character from your Notice of Appraised Value or Comal CAD online portal. Do not guess or abbreviate.

✎ 75432-00014-0030 (example format; use your actual account number)

Field: Property Address / Legal Description

What to write: Full street address plus the exact legal description from your CAD record. Do not paraphrase.

✎ 412 Cypress Creek Rd, Spring Branch, TX 78070; Lot 14, Block 3, River Crossing Estates, Phase II

Field: Grounds for Protest (checkboxes)

What to write: Check BOTH boxes: “Value is too high” AND “Value is unequal compared with other properties.” Checking both preserves both legal tracks through the entire hearing process.

✎ ☑ Value is over market value    ☑ Value is unequal compared with other properties

Field: Description of Evidence / Reason for Protest

What to write: Specific, factual summary of your evidence. Name your comps, identify any data errors, and list attached documents. Never write “I disagree with the value.”

✎ Attached: three closed sales within 0.5 miles, Jan. through Apr. 2025, average $362,000. CAD record shows 2,400 sq ft; county deed records and original survey show 2,200 sq ft. Supporting documents enclosed.

Field: Owner’s Opinion of Value (Requested Value)

What to write: Your evidence-backed number. Never leave blank. This anchors the negotiation. It is not a binding offer; it is your opening position.

✎ $362,000

Field: Agent Authorization Section

What to write: Leave entirely blank if you are filing on your own behalf. Partial entries here create authority confusion and trigger processing delays.

✎ [Leave blank, self-represented filer]

Field: Signature and Date

What to write: Your legal signature and the date you are submitting the form. An unsigned form is not a valid protest.

✎ Maria L. Gutierrez, April 28, 2026

Every field on form 50-132 serves a purpose, and the form rewards precision over volume. Match your name exactly. Check both grounds for protest. Describe your evidence in concrete terms. Name your number. Leave the agent section alone. With the form completed correctly, the next question is what evidence to bring and how to present it so the appraisal review board actually listens.

The Evidence That Actually Wins: Pulling Comparable Sales and Exposing CAD Data Errors

New Braunfels Texas neighborhood

Filing form 50-132 property tax protest Texas homeowners submit each year is only the opening move. The form itself doesn’t reduce your appraised value. Evidence does. Appraisal review board panels see dozens of protests per day, and the ones that succeed share a common trait: the homeowner brought organized, specific documentation rather than a general complaint about taxes being too high. Your evidence falls into two tracks, and the strongest cases present both.

Track 1: Market Value Evidence Through Comparable Sales

Start with your own property record. If you’re in Comal County, go to search.co.comal.tx.us and pull your property detail page. Screenshot every field: the appraised value, the land value, the improvement value, the square footage, bedroom and bathroom count, year built, and any special features like a pool or extra garage. If you’re in Guadalupe County, the same process applies at gcad.org. Do this before you file or immediately after. These records can change during the protest cycle, and your screenshots become your baseline.

Now pull comparable sales. Both Comal and Guadalupe CADs offer sold property searches through their online portals. You can also cross-reference with the Texas Comptroller’s property tax data for additional sale records. The comps you select need to follow the rules of thumb that ARB panels actually apply: same subdivision or within one mile of your property, sold within the last 12 months, similar square footage (within 15% of yours), similar age, and similar condition. Panels will dismiss a comp from across town or a home half the size of yours.

Pull three to five strong comps and calculate the average sale price. If your three best comps average $362,000 and the CAD has your home appraised at $387,000, your argument is a $25,000 reduction, stated in dollar terms. Don’t lead with percentages. Panels respond to specific dollar amounts tied to specific properties. Present each comp on a single page with the address, sale date, sale price, square footage, year built, and a note on condition if available.

One critical detail: many sold comps in CAD records are for recently updated homes with new kitchens, replaced roofs, or modern landscaping. If the CAD’s own comparable sales skew toward renovated properties and your home hasn’t been updated since it was built, that inflates the baseline used for your unimproved home. Call this out explicitly. “Comp at 123 Oak St. sold for $375,000 with a full kitchen remodel per MLS notes; my home has original 2004 fixtures” is the kind of sentence that moves a panel.

Track 2: CAD Data Error Evidence

This is the evidence track most homeowners overlook, and it’s often the easiest win. Open your property’s improvement detail on the CAD portal and compare every line against reality. Check the bedroom count, bathroom count, total square footage, garage type (attached vs. detached, one car vs. two car), whether a pool is listed, and the property’s condition rating. Then compare those fields against your deed, your original builder records, or a tape measure.

Square footage discrepancies are the most common and most impactful errors. If the CAD lists your home at 2,400 square feet but your builder plans or a measured survey show 2,250, that 150-square-foot difference could represent thousands of dollars in over-appraisal. Under Texas Tax Code §25.25, a property owner can file for correction of a CAD error at any time. Catching it during the protest is faster and creates a combined record that strengthens your overall case.

Photos matter enormously here. The ARB panel cannot physically inspect your home. You are their eyes. A dated photo of a deteriorating deck, a visible foundation crack, water damage in a ceiling, or a non-functioning HVAC unit is real evidence. Print these photos in color, label them with the date taken, and include a brief description. “Rear deck, April 2025, wood rot on support beams” tells the panel exactly what they need to know.

The Unequal Appraisal Angle

If you checked both protest grounds on your form 50-132 property tax protest Texas filing, prepare an unequal appraisal argument as well. Pull records for five to ten neighboring properties from the CAD. For each one that sold recently, calculate the ratio of the CAD’s appraised value to the actual sale price. Then calculate your own ratio. If your appraisal-to-market-value ratio is significantly higher than your neighbors’, that is the unequal appraisal argument. It works even if your home is legitimately worth $387,000, because the issue isn’t absolute value: it’s whether you’re being appraised proportionally higher than similar properties nearby.

Assemble all of this into a single packet: your property detail screenshots, your comp analysis with dollar amounts, your data error documentation with photos, and your unequal appraisal ratio table. This packet is what transforms a filed protest into a case the ARB takes seriously. The next step is understanding the two distinct legal arguments your evidence can support, and why you should almost always deploy both of them.

Market Value vs. Unequal Appraisal: You Probably Need to Argue Both (Here’s Why)

Most homeowners who file a form 50-132 property tax protest in Texas check one box: “Value is over market value.” They walk into the hearing, argue their home isn’t worth what the county says, and hope for the best. That’s a reasonable instinct, but it ignores a second, often stronger legal argument sitting right there on the same form. The unequal appraisal ground operates under a completely different legal standard, and checking both boxes costs you nothing while preserving your strongest card for the hearing.

A market value protest asks: “Is my home appraised above what it would actually sell for?” An unequal appraisal protest asks something fundamentally different: “Is the appraisal district holding me to a higher standard than my neighbors?” You don’t need to prove your home is worth less. You need to prove the system is treating you unequally. That distinction matters enormously once you’re sitting across from an appraiser or an ARB panel.

The legal foundation is Texas Tax Code §41.43. Under this statute, if a homeowner presents evidence that their property’s appraisal ratio exceeds the median level of appraisal for comparable properties, the burden of proof shifts to the appraisal district. Read that again: the burden shifts to them. In a market value protest, you carry the full burden of proving the appraised value is wrong. In an unequal appraisal protest, once you show the math, the district has to justify why your ratio is higher.

Calculating your ratio is straightforward. Take your appraised value, divide it by your estimated market value (what your home would realistically sell for today), and multiply by 100. Say you own a home in a Spring Branch neighborhood in Comal County. The appraisal district has you at $387,000, but based on recent comparable sales, your home would likely sell for $362,000. Your ratio is ($387,000 ÷ $362,000) × 100 = 106.9%. Now pull the ratios for homes that recently sold nearby. If the median ratio in your neighborhood is 92%, your property is being appraised at a significantly higher percentage of its market value than your neighbors’ properties. That gap is your unequal appraisal claim, and it stands regardless of whether the overall market is rising, falling, or flat.

ARB panels and informal hearing appraisers often settle faster on unequal appraisal arguments because the math is harder to dispute. A market value debate is inherently subjective: you say your home is worth $362,000, the appraiser says $387,000, and now you’re arguing about condition adjustments, lot premiums, and which comps are truly comparable. An unequal appraisal argument puts a ratio table in front of the panel. Either your ratio exceeds the median or it doesn’t. Pure math leaves less room for disagreement.

Check both the market value and unequal appraisal boxes under the protest grounds section of your form 50-132 property tax protest in Texas. This preserves both arguments through the informal hearing and, if necessary, the formal ARB hearing. You lose nothing by checking both. You lose potential leverage by checking only one. Think of it as bringing two tools to the same job: if the market value argument doesn’t land, the unequal appraisal argument gives the panel a clean, mathematical reason to reduce your appraised value. Many successful protests resolve on the unequal appraisal ground alone, especially in neighborhoods where recent sales data is thin but ratio disparities are obvious.

With your evidence assembled and both legal arguments preserved, the question becomes: what actually happens once your protest enters the system? The two-stage hearing process is far less intimidating than most homeowners expect, and the downside risk is smaller than almost anyone realizes.

What Happens After You File: The Informal Hearing, the ARB, and What Losing Actually Costs

You filed your form 50-132 property tax protest in Texas. The confirmation email or letter arrived. Now your phone is quiet, and a small voice in the back of your head asks: Did I just invite trouble? The answer is no. What you actually invited is a structured, two-stage process designed to resolve valuation disputes quickly, and the worst realistic outcome is that nothing changes at all.

Stage One: The Informal Conference

Most protests in Comal and Guadalupe counties resolve right here, before a formal hearing ever takes place. After the county appraisal district receives your protest, a CAD staff appraiser reviews your evidence. This review often happens over the phone or by email. The appraiser looks at the comparable sales, photos, and equity data you submitted, compares it against the district’s own records, and either offers you a reduced appraised value or upholds the original number. If the appraiser offers a reduction and you accept it, you sign a settlement agreement and you’re done. If you reject the offer or no reduction is offered, your case automatically moves to Stage Two. There is no penalty for declining a settlement offer you find inadequate.

Stage Two: The Appraisal Review Board Hearing

The ARB hearing sounds intimidating. It isn’t. A panel of three local citizens sits at a table. Not judges, not attorneys. You present your evidence. The CAD appraiser presents theirs. The panel asks questions, deliberates briefly, and issues a ruling. The entire process typically takes 15 to 30 minutes. This is not a courtroom, there is no cross-examination in the legal sense, and you do not need a lawyer. You need the same evidence package you already built: your comps, your photos, your equity analysis. Present it clearly, answer questions honestly, and let the numbers do the work.

The “What If I Lose” Question

This is the fear that causes more homeowners to abandon valid protests than any other. If the ARB upholds the CAD’s original appraised value, your tax bill stays exactly where it was going to be anyway. No penalties. No fees. No surcharges. No black mark on your property record. No effect whatsoever on your eligibility to protest again next year. You simply return to the status quo that existed before you filed.

More importantly, Texas Tax Code §42.09 explicitly prohibits an appraisal district from increasing a protested value above the original notice value during the protest process. Filing a protest cannot make your situation worse. The value on your notice is the ceiling, not the floor.

The Retaliation Myth

Some homeowners worry that protesting will “flag” them for audits or trigger retaliation from the county. This fear conflates entirely separate government functions. Texas appraisal districts assess property values. They have zero auditing authority over income taxes; that belongs to the IRS and the Texas Comptroller. Protesting your property valuation does not flag you for any other government review, period. The documented history in Comal and Guadalupe counties shows no pattern of post-protest retaliatory increases, and the legal framework makes such retaliation a violation of state law.

The finish line is closer than most homeowners think, and the penalty for crossing it unsuccessfully is exactly zero. You built the case. You filed the form. Now show up, present your evidence, and let the process work. The only homeowners who lose money in this system are the ones who never file at all.

The Honest Decision: File It Yourself or Have Someone Handle It

You now have everything you need to protest your property tax appraisal using form 50-132 property tax protest Texas filers submit every year. The evidence gathering, the form itself, the hearing strategy: it’s all genuinely doable on your own. But “doable” and “worth doing yourself” aren’t always the same thing. Here’s a straightforward way to decide.

Profile A: You should file it yourself. You’ve already pulled your comps. You have photos of your property’s condition issues. You blocked out time on your calendar for the informal hearing, and the idea of sitting across from an appraiser and walking through your evidence doesn’t make your stomach turn. You’re organized, you’re motivated, and frankly, you’re a little fired up. This guide gave you the playbook. Go execute it.

Profile B: You should hand it off. You pulled the comps and you can see the overvaluation, but your schedule is packed, or the thought of presenting evidence at a hearing feels like preparing for a deposition you didn’t ask for. Maybe you started filling out the form and got stuck on which boxes to check. None of that makes you lazy or incapable. It makes you someone whose time and energy are better spent elsewhere while a specialist handles the process.

If you’re Profile B, that’s exactly what propertytaxessuck.io exists for. They handle the entire protest on your behalf: evidence preparation, hearing representation, all of it. They focus specifically on Comal County and Guadalupe County protests. This isn’t a national volume shop processing thousands of files with no local knowledge. They know these appraisal districts, these ARB panels, and the comps that actually move the needle in your neighborhood.

Run the math before you decide it’s not worth the fee. Say your home is appraised at $387,000 and a successful protest knocks $25,000 off that assessed value. At a combined tax rate of roughly 2.5%, that’s about $625 back in your pocket every year. Compare that against the service fee and the decision usually makes itself.

One thing that doesn’t change regardless of your choice: the May 15 deadline applies to everyone. Signing up with a protest service does not extend your filing window. If you miss it, nobody can help you.

Sign up at propertytaxessuck.io before May 15. They handle Comal and Guadalupe County protests so you don’t have to.

May 15 is the only date that matters now. Either pull Form 50-132 from the Texas Comptroller’s website right now and start with the field-by-field section of this article, or go to propertytaxessuck.io and sign up before the window closes. An unprotested appraisal at $387,000 will cost you roughly $9,500 more over the next four years than a successful protest to $350,000. The window closes May 15.

Frequently Asked Questions

Does filing a property tax protest in Comal or Guadalupe County trigger any kind of audit or government review of my finances, what does Texas law actually say about this?

No. Filing a property tax protest does not trigger any financial audit or government review of your personal finances. Texas appraisal districts are authorized solely to assess property values; they have no authority over income taxes, business taxes, or any other financial matters. Those functions belong to the IRS at the federal level and the Texas Comptroller at the state level, and the two systems operate entirely independently. There is no data-sharing mechanism between a CAD protest filing and any tax enforcement agency. Texas law, including the framework established under the Texas Tax Code, contains no provision that would allow a protest filing to initiate any secondary review. The documented history in both Comal and Guadalupe counties shows no pattern of post-protest retaliation or retaliatory value increases, and any such retaliation would itself constitute a violation of state law. Filing a protest is a routine, legally protected right of every Texas property owner.

My CAD record shows 2,400 square feet but my deed and original survey say 2,200, which number does the appraisal district use, and how do I formally correct it?

The appraisal district uses the square footage in its own internal records, which may differ from your deed or survey. That discrepancy is exactly the kind of error that inflates your appraised value year after year. You have two parallel paths to correct it. First, during your protest, present the discrepancy as evidence: bring your original survey, builder plans, or a current measured survey alongside a screenshot of the CAD’s record showing the incorrect figure. This is often the fastest resolution because the informal hearing appraiser can flag the correction immediately. Second, under Texas Tax Code §25.25, you can file a formal request for correction of a clerical or data error directly with the appraisal district at any time, not just during protest season. Filing both simultaneously is the strongest approach: the protest addresses your current year’s value, and the §25.25 correction ensures the error is fixed in the permanent record so it doesn’t recur next year.

If I submit Form 50-132 online at 11:59 p.m. on May 14 versus dropping it in the mail on May 15 morning, which one is actually on time?

Both are timely, but for different reasons. An online submission at 11:59 p.m. on May 14 is unambiguously on time: the system timestamp is the controlling date, and that timestamp precedes the deadline. A letter dropped in the mail on the morning of May 15 is also timely, provided it receives a May 15 postmark. Under Texas Tax Code §41.44, the postmark date, not the delivery date, determines timeliness for mailed filings. The critical risk with mail is that a letter deposited in a collection box on May 15 may not be postmarked until May 16 if the carrier doesn’t pick up until after the daily cutoff. To eliminate that risk entirely, take your envelope to a post office counter on May 15, request USPS Certified Mail with return receipt, and have the clerk hand-cancel the postmark in front of you. That receipt is your proof and removes any dispute about timing.

My home is appraised at $450,000 and I think it’s worth closer to $420,000, is a $30,000 gap worth protesting, or is that within normal CAD variance?

A $30,000 gap is worth protesting. At a combined tax rate of 2.5%, typical for properties in Comal and Guadalupe counties when you add school district, county, and municipal levies, a $30,000 reduction saves you $750 per year. Over four years, that’s $3,000. The protest itself costs nothing to file, and the worst outcome if you lose is that your value stays at $450,000, exactly where it was headed anyway. The more important question is whether you can support the $420,000 figure with comparable sales data. If three or more recent sales of similar homes in your area closed near $420,000, you have a credible case. The filing cost is zero and the downside is zero: if you have any evidence, file.

If I protest and lose at the ARB, do I owe the county anything, fees, penalties, interest, or does the value just stay where it was?

You owe nothing. If the Appraisal Review Board upholds the CAD’s original appraised value, your tax bill is exactly what it would have been had you never filed. There are no filing fees for a property tax protest in Texas, no penalties for an unsuccessful protest, no interest charges, and no surcharges of any kind. Your eligibility to protest again in future years is completely unaffected. Additionally, Texas Tax Code §42.09 prohibits the appraisal district from raising your appraised value above the original notice value during the protest process, meaning the value on your notice is a ceiling, not a starting point for negotiation against you. There is no monetary downside to filing.

Can I protest even if I already paid my 2025 property taxes, or does payment waive my right to challenge the value?

Paying your property taxes does not waive your right to protest the appraised value. In Texas, the protest process challenges the appraisal district’s valuation of your property, which is a separate administrative action from the tax payment itself. You can pay your tax bill in full, including early payment to avoid penalties, and still file a timely protest on Form 50-132. If your protest succeeds and results in a lower appraised value, the taxing units will issue a refund for the overpayment. The refund process takes time and involves coordination between the appraisal district and the individual taxing entities (school district, county, city), but the right to that refund is preserved by your timely protest filing. The only thing that waives your protest right is missing the filing deadline.

What’s the difference between protesting through Form 50-132 and filing a correction request under Texas Tax Code §25.25, do I need both?

They serve different purposes and operate on different timelines, and in many cases you benefit from using both. A Form 50-132 protest challenges the current year’s appraised value. It must be filed by the protest deadline (May 15 or 30 days after your notice, whichever is later), and it results in either a negotiated settlement or an ARB ruling for that specific tax year. A §25.25 correction request addresses factual errors in the CAD’s property records: wrong square footage, incorrect bedroom count, a pool that no longer exists, a demolished structure still listed as an improvement. A §25.25 request can be filed at any time, not just during protest season, and it corrects the underlying record so the error doesn’t recur in future years. If your protest is based partly on a data error, filing both simultaneously is the strongest approach: the protest addresses this year’s value, and the §25.25 correction fixes the permanent record. The two filings are complementary, not redundant.

I missed the deadline last year and didn’t protest, can I do anything about prior-year over-appraisals, or is it strictly prospective?

In most cases, a missed protest deadline is final for that tax year. Texas Tax Code §41.44 is strict: once the protest window closes, the appraised value for that year is locked and cannot be challenged through the standard protest process. However, there are narrow exceptions. If the CAD made a clerical error or entered incorrect data, such as listing the wrong square footage, wrong property owner, or an improvement that doesn’t exist, a §25.25 correction request can sometimes address prior-year errors, though the window for those corrections is also limited (generally two years for most error types, five years for certain clerical errors). Additionally, if you can demonstrate that you never received your Notice of Appraised Value due to a mailing address error on the CAD’s part, you may have grounds to argue the protest window never properly opened. These are narrow remedies. The practical answer for most homeowners who missed last year’s deadline is to focus entirely on the current year: file on time, build strong evidence, and use this year’s protest to establish the correct baseline going forward.