AppealDesk

Grayson County Property Tax Protest, Texas

Travis BunnTravis Bunn·Updated July 22, 2026

Grayson County is located in North Texas along the Oklahoma border, with Sherman serving as the county seat and major cities including Denison, Whitesboro, Van Alstyne, and Pottsboro. With a 2026 population of approximately 153,000-157,000 residents, the county is part of the Sherman-Denison metropolitan area and the broader Dallas-Fort Worth combined statistical area. Property tax protests are particularly important in Grayson County because homeowners face a significantly higher tax burden than both state and national averages, with a median effective tax rate of 1.71% compared to the national median of 1.02%, resulting in median annual tax bills of $3,795, substantially above the national median of $2,400.

Notable cities: Sherman, Denison, Whitesboro, Van Alstyne, Pottsboro, Howe, Gunter

Median Home

$248,400

Tax Rate

1.71%

Annual Tax

$3,795

On the typical Grayson County home, valued near $248,400 at the county’s effective tax rate of 1.71%, an over-assessment of even 10% means you are overpaying year after year until you protest it. Here is how to find out if yours qualifies.

2026 Protest Deadline: May 15, 2026 or 30 days after receiving your Notice of Appraised Value, whichever is later

This year's protest window has passed in most of Texas. Order now and we re-run your numbers free when the window reopens, so your evidence is ready the day your next notice lands.

The protest deadline in Grayson County is May 15 or 30 days from the date on your Notice of Appraised Value, whichever date is later. Most homeowners receive their notices by early May, giving them until May 15, 2026 to file. If you receive your notice after April 15, you have 30 days from the notice date to file your protest.

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White two-story Texas home with shade trees. Grayson County protest guide.

How Grayson County Assesses Property

100%of market value

Assessed by: Grayson Central Appraisal District (GCAD)

Assessment cycle: annual

Notices typically mailed: April-May

In Texas, properties are assessed at 100% of their market value, meaning the assessed value equals the market value before exemptions are applied. For example, if your home's market value is $248,400 (Grayson County's median), at Texas's 100% assessment ratio your assessed value would be $248,400, resulting in approximately $4,248 in annual taxes at the county's effective rate of 1.71%. After applying a standard homestead exemption, your taxable value would be reduced, lowering your actual tax bill.

The Protest Process

Appeals are heard by the Appraisal Review Board (ARB). ARB hearings in Grayson County typically occur between May and August. You'll present your case to a panel of board members, the district will present their evidence, and the board will issue a written decision. Hearings are relatively informal and typically last 15-20 minutes.

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Step 1: Review your Notice of Appraised Value from Grayson CAD (mailed by April-May) to understand your property's assessed market value and identify any discrepancies.

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Step 2: Gather evidence to support your protest, including comparable sales from the past 12 months (focusing on similar properties in your area), photographs documenting property condition issues, repair estimates for any defects, and recent appraisals if available.

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Step 3: File your Notice of Protest with Grayson Central Appraisal District by May 15, 2026 or within 30 days of receiving your notice (whichever is later). You can file online through the Taxpayer Portal at https://portal.graysonappraisal.org/, by mail to 512 N. Travis Street, Sherman, TX 75090, in person, by email to webmaster@graysonappraisal.org, or by fax to 903-892-3835.

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Step 4: Attend an informal review with a GCAD appraiser (optional but recommended). This meeting allows you to present your evidence and potentially reach a settlement without going to a formal hearing. Many cases are resolved at this stage.

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Step 5: If the informal review doesn't result in a satisfactory outcome, attend your formal Appraisal Review Board (ARB) hearing. You'll receive notification of your hearing date and time through the online portal or by mail. Present your evidence clearly and professionally, focusing on comparable sales data and specific property condition issues.

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Step 6: Receive the ARB's written decision. If you disagree with the outcome, you have additional appeal options including judicial appeal to district court, binding arbitration (for properties under $5 million in some cases), or appeal to the State Office of Administrative Hearings (SOAH) for certain issues.

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Step 7: If appealing beyond the ARB, file your appeal within the required timeframe (typically 60 days for district court appeal or 45 days for arbitration). Consider consulting with a property tax attorney or professional for higher-level appeals.

Required form: Notice of Protest form or letter of disagreement stating the property address, account number, and reason for protest

Filing Methods

online:File through the Grayson CAD Taxpayer Portal at https://portal.graysonappraisal.org/ (requires registration and PIN from GCAD)
mail:Mail to: Grayson Central Appraisal District, 512 N. Travis Street, Sherman, TX 75090
in-person:Deliver to: 512 N. Travis Street, Sherman, TX 75090 (office dropbox available outside for after-hours submission)
email:Email to: webmaster@graysonappraisal.org
fax:Fax to: 903-892-3835

Evidence to Bring

Comparable sales data from similar properties sold within the past 12 monthsPhotographs showing property condition, defects, or unique factors affecting valueContractor estimates or repair invoices for significant defects or needed repairsRecent professional appraisals (if available)Documentation of property characteristics that may have been incorrectly recorded by the appraisal district

Grayson County Assessor Contact

Grayson Central Appraisal District

Phone: 903-893-9673

Address: 512 N. Travis Street, Sherman, TX 75090

Website: https://graysonappraisal.org/

Online Portal: https://portal.graysonappraisal.org/

Hours: Monday-Friday 8:00 AM - 5:00 PM (Open to Public: 8:00 AM - 4:00 PM)

Tax Exemptions in Grayson County

General Residence Homestead Exemption

$100,000 exemption from school district taxes; $25,000 exemption from county and other local taxing entities

Reduces the taxable value of your primary residence for property tax purposes

Eligibility: Must own and occupy the property as your primary residence on January 1 of the tax year. Cannot claim homestead exemption on any other property. Property must be designed or adapted for human residence.Deadline: April 30 (late filing allowed up to 2 years after delinquency date in some cases)

Over-65 Exemption

Additional $10,000 from school district taxes plus school tax ceiling that freezes school taxes at current level; additional exemptions from county and other entities vary by jurisdiction

Provides additional exemption and school tax ceiling (freeze) for homeowners age 65 or older

Eligibility: Must qualify for general homestead exemption and be age 65 or older on January 1 of the tax year. Must provide proof of age (driver's license or birth certificate).Deadline: April 30 of the year you turn 65 or qualify

Disabled Person Exemption

$10,000 exemption from school district taxes plus school tax ceiling; additional exemptions from county and other entities

Similar benefits to over-65 exemption for homeowners with qualifying disabilities

Eligibility: Must qualify for general homestead exemption and be classified as disabled under Federal Old-Age, Survivors and Disability Insurance Act. Must provide documentation from Social Security Administration.Deadline: April 30

Disabled Veteran Exemption

Ranges from $5,000 (10-29% disability) up to $12,000 (70-100% disability) for general property taxes. Exemptions increase with disability rating.

Exemption based on percentage of service-connected disability

Eligibility: Must be a veteran with a service-connected disability rating of at least 10% from the VA. Property must be your residence homestead. Must be a Texas resident.Deadline: April 30 (late filing allowed up to 5 years after delinquency date)

100% Disabled Veteran Exemption

Total exemption from all property taxes

Complete exemption from all property taxes for veterans with 100% disability rating

Eligibility: Must have 100% disability compensation from VA due to service-connected disability and 100% rating or individual unemployability determination. Property must be residence homestead. Surviving spouses may also qualify.Deadline: April 30

Grayson County Protest Statistics

Success Rate

54%

% Who Protest

11%

Grayson County Protest Packet · $49

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Frequently Asked Questions

What is the deadline to protest my property taxes in Grayson County for 2026?
The deadline to file a property tax protest in Grayson County is May 15, 2026, or 30 days after you receive your Notice of Appraised Value from the Grayson Central Appraisal District, whichever date is later. Most homeowners in Sherman, Denison, and surrounding areas receive their appraisal notices by early May, giving them until May 15th to file. If you receive your notice after April 15, you have 30 days from the date on the notice to submit your protest. Missing this deadline means you cannot challenge your property's assessed value for that tax year, potentially costing you hundreds or thousands of dollars in overpaid taxes.
How do I file a property tax protest online in Grayson County?
To file a property tax protest online in Grayson County, visit the Grayson CAD Taxpayer Portal at https://portal.graysonappraisal.org/. You'll need to create an account if you haven't already, and you must contact Grayson Central Appraisal District at 903-893-9673 to obtain your PIN before registration. Once registered, you can file your protest electronically, upload supporting documentation such as comparable sales data and photographs, view evidence the district intends to present, track your hearing date and time, and accept or reject settlement offers. The online system will send you an email confirmation when your protest is successfully submitted, if you don't receive confirmation within one hour, the filing was not successful and you should try again or use an alternative filing method.
What is the homestead exemption worth in Grayson County?
The homestead exemption in Grayson County provides a $100,000 reduction from your property's taxable value for school district taxes and a $25,000 reduction for county and other local taxing entities. For a home valued at the county median of $248,400, this exemption reduces your school district taxable value to $148,400, saving approximately $1,000 or more annually depending on your specific tax rate. Additionally, the homestead exemption caps your assessed value increases to 10% per year for your primary residence, protecting you from drastic tax hikes even when market values surge. You must apply for this exemption by April 30th with the Grayson Central Appraisal District, and once granted, it remains in effect as long as you continue to own and occupy the property as your primary residence.
What happens at an ARB hearing in Grayson County?
At an Appraisal Review Board (ARB) hearing in Grayson County, you'll present your case to a panel of board members who are independent from the appraisal district. The hearing typically lasts 15-20 minutes and follows an informal format where you present your evidence (comparable sales, photos, repair estimates), explain why you believe your property is overvalued, and answer any questions from the board. The appraisal district will also present their evidence supporting their valuation. After hearing both sides, the ARB will deliberate and issue a written decision, which you'll receive by mail or through the online portal. In Grayson County, approximately 54% of ARB hearings result in a value reduction, so bringing solid evidence significantly improves your chances of success.
How much can I save by protesting my property taxes in Grayson County?
In Grayson County, homeowners who successfully protest their property taxes save an average of 5% on their property tax bill, according to protest data. With the median annual tax bill of $3,795, a successful protest could save you approximately $190 per year, though savings vary based on your property's overassessment. In 2024, Grayson County property owners saved a total of $5 million through informal and formal protests, with homeowners saving $410,000 through ARB protests and $130,000 through informal protests. Even a modest reduction in assessed value can result in significant long-term savings, as the reduction carries forward to future years unless your value increases again. Given that 54% of ARB hearings in Grayson County are successful, protesting is often worthwhile if you believe your property is overvalued.
What evidence do I need for a successful Grayson County property tax protest?
The most effective evidence for a Grayson County property tax protest includes comparable sales data from similar properties in your neighborhood that sold within the past 12 months before January 1 of the tax year. Focus on properties with similar square footage, age, condition, and features. Photographs documenting your property's condition, such as foundation issues, roof damage, outdated features, or deferred maintenance, provide visual proof of factors that may reduce value. Contractor estimates or repair invoices for significant defects demonstrate the cost to remedy issues affecting your property's marketability. If available, a recent professional appraisal conducted by a licensed appraiser can carry substantial weight. Additionally, if the appraisal district has incorrectly recorded your property characteristics (such as listing a pool you don't have or incorrect square footage), providing documentation to correct these errors can lead to a quick reduction.
Can I protest my Grayson County property taxes every year?
Yes, Texas law gives you the right to protest your property's appraised value every year in Grayson County, even if you protested last year. The Grayson Central Appraisal District reassesses all properties annually, so last year's reduction doesn't carry forward, you must review your new assessment each year and protest if it seems too high. Many successful protesters make it an annual practice, especially in rapidly changing real estate markets where assessed values may not accurately reflect true market conditions. Given that Grayson County's median property values have been rising and 11% of property owners filed protests in 2024, regular review of your assessment can help ensure you're not overpaying year after year. The key is filing before the deadline (May 15 or 30 days from notice) and presenting fresh, relevant evidence specific to the current tax year.
What if I miss the May 15 protest deadline in Grayson County?
If you miss the May 15 deadline but received your Notice of Appraised Value after April 15, you still have 30 days from the notice date to file, which may extend beyond May 15. However, if you miss both deadlines, you can file a late protest with Grayson CAD, but you must have a valid reason under Texas law, such as not receiving your notice, military deployment, or serious illness. Late protests cannot be filed through the online portal, you must submit them by email to webmaster@graysonappraisal.org, by fax to 903-892-3835, or in person at the office dropbox at 512 N. Travis Street, Sherman. Your late protest must include an explanation of why you're filing late. Be aware that late protests have stricter requirements and lower success rates, so it's critical to mark your calendar and file on time to protect your rights.

Official Resources

Grayson Central Appraisal District Official Website →

Official site for property searches, appraisal information, exemption applications, and protest resources for Grayson County.

Grayson CAD Online Taxpayer Portal →

Register and file property tax protests online, upload evidence, view hearing information, and manage your account.

Texas Comptroller Property Tax Information →

Statewide property tax resources, exemption information, and taxpayer rights from the Texas Comptroller of Public Accounts.

Grayson County Property Tax Payment Portal →

Pay property taxes online, search tax bills, and access payment information through the Grayson County Tax Assessor-Collector.

For state-wide protest information including Texas's assessment ratio and deadlines, see our Texas Property Tax Protest Guide →

Considering professional help with your protest? Compare pricing, coverage, and pros/cons in our Best Property Tax Protest Services (2026) or browse side-by-side service comparisons →

More Texas Counties

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← All Texas property tax protest info

Sources: https://graysonappraisal.org/ | https://www.ownwell.com/trends/texas/grayson-county | https://plainpropertytax.com/counties/grayson-tx | https://www.appealdesk.com/appeals/texas/grayson | https://www.poconnor.com/grayson-county/

Last verified: 2026-07-22