Grayson County Property Tax Guide – Trends, Appeals & How to Lower Your Bill
📍 Grayson County, TX | Updated: March 2025
Overview of Grayson County Property Taxes
Grayson County, located just north of Dallas-Fort Worth along the Oklahoma border, is undergoing a major real estate transformation. With booming development in Sherman, Denison, and along Lake Texoma, property values — and tax assessments — are rising fast.
Much of the county’s recent surge is driven by the $30 billion Texas Instruments chip plant in Sherman, which is attracting developers, investors, and new residents in record numbers. That means higher valuations across the board — especially for non-homesteaded rentals, lake homes, and rural land near development zones.
📌 Why It Matters: If your Grayson County property value jumped this year, you’re not alone. Filing a protest can help you challenge over-assessed values and reduce your tax bill.
📞 Need help filing a protest? Get a Free Consultation
📊 Grayson County Quick Facts
✔ 📍 Location: North Texas, bordering Oklahoma
✔ 🏆 Size Rank: 49th largest county in Texas (979 sq mi)
✔ 👥 Population Rank: ~30th (~145,000 residents and growing fast)
✔ 🌆 Largest Cities: Sherman, Denison, Van Alstyne, Pottsboro, Howe
✔ 🏡 Median Home Price: ~$310,000
✔ 💰 Median Property Tax Bill: ~$6,500 per year
✔ 🏛️ Major Economic Drivers: Texas Instruments chip plant, tourism, STRs, logistics
✔ 🌊 Attractions: Lake Texoma, Eisenhower State Park, Downtown Sherman revitalization
✔ 🚗 Highways: US-75, US-82, SH-289, FM-1417
📊 Grayson County Property Tax Trends
📈 Property Tax Rates & Assessments
Avg. Tax Rate: ~2.10% of assessed value
Avg. Home Value: 💲**$310,000** (up 9.5% from last year)
Median Property Tax Bill: 💲**$6,500**
🏡 Home Value Increases (Past 5 Years)
📅 Year 🏠 Avg. Home Value 📈 % Change
2021 💲**$240,000** 🔺 +6.7%
2022 💲**$265,000** 🔺 +10.4%
2023 💲**$285,000** 🔺 +7.5%
2024 💲**$310,000** 🔺 +8.8%
2025 💲**$339,000** (est.) 🔺 +9.5%
📌 Tip: Many appraisals increase year-over-year even when actual sale prices do not—protest if your increase feels inflated.
📌 Tip: In Grayson County, many rural and lake-adjacent properties have jumped in value due to development pressure—even when no upgrades have been made. If your home was reappraised too aggressively, it’s time to file a protest.
✅ What This Means: Homeowners are facing higher tax bills due to increasing property values. If your home’s appraised value is rising faster than similar properties in your area, you might be overpaying.
🔎 Not sure if your property is over-assessed? Check Your Grayson County Property Value
Who Pays the Highest Property Taxes in Grayson County?
Properties near Lake Texoma, Sherman’s development zones, and Denison’s revitalizing downtown are seeing the highest increases, especially in areas with new builds or strong investor demand.
💰 Highest Property Tax Rates by City
🏙️ City 📊 Est. Tax Rate 🏡 Avg. Home Price
Sherman 2.13% 💲**$315,000**
Denison 2.12% 💲**$290,000**
Pottsboro 2.10% 💲**$475,000**
Van Alstyne 2.11% 💲**$350,000**
Rural Grayson 2.06% 💲**$300,000**
📌 Tip: Properties near Lake Texoma or TI’s new facility are often over-appraised based on speculative growth. Protest now to avoid inflated taxes.
How to Protest Your Property Tax Assessment in Grayson County
If you believe your property is overvalued, you have the right to appeal your assessment with Grayson Central Appraisal District (GCAD).
📅 Key Deadlines for 2025
🛑 Notice of Appraised Value Sent: Early April 2025
🛑 Property Tax Protest Deadline: May 15, 2025
Step-by-Step Guide to Filing a Protest
1️⃣ Review Your GCAD Assessment
Visit graysonappraisal.org to check your property’s appraised value.
2️⃣ Gather Supporting Evidence
Recent sales data from similar properties.
Photos of property damage or defects affecting value.
Neighboring properties’ tax assessments (to compare values).
3️⃣ File a Protest with GCAD
✅ Online: Submit your appeal at graysonappraisal.org
✅ By Mail: Send a written protest to GCAD before the May 15th deadline:
512 N Travis St
Sherman, TX 75090
✅ In-Person: Visit GCAD’s office in Sherman to file directly.
4️⃣ Attend Your Informal Hearing
GCAD may offer a settlement to reduce your valuation.
5️⃣ Formal Hearing
If no agreement is reached, you can present your case to the Appraisal Review Board (ARB).
🔹 Need expert help? Start Your Free Property Tax Review
💰 Save Money on Your Grayson County Property Taxes
Don’t wait—appealing your property tax assessment could save you thousands per year. If you’re unsure where to start, Texas Tax Appeal can handle the entire process for you.
📧 Email: info@texastaxappeal.com
🌐 Start Your Free Consultation
🔹 Protest Deadline: May 15, 2025
📌 Don't Overpay! Check if You Qualify for a Lower Tax Bill.
🛠 Resources for Grayson County Property Owners
📌 Grayson Central Appraisal District (GCAD)- Chief Appraiser, Shawn Coker, RPA, CCA
📌 Grayson County Taxpayer Liaison Officer- Kelli South
📌 Grayson County Tax Assessor- Bruce Stidham
🏞️Unique Property Tax Situation in Grayson County
Grayson County is experiencing explosive growth from both major industrial development and lakefront demand, creating significant disparities in tax assessments.
✔ Lake Texoma homes and STRs are appraised as luxury properties, regardless of actual condition
✔ Rural landowners are seeing spikes based on nearby subdivisions or commercial projects
✔ TI's chip plant is causing massive reappraisal in Sherman and beyond
✔ Non-homesteaded and investment homes are hit hardest with no protection from the 10% cap
📌 What This Means: Whether your property is residential, rental, or commercial, there’s a good chance it’s over-appraised. Filing a protest can help correct the value and reduce your tax burden.
📞 Get a Free Property Tax Review Today! 🚀
This guide provides an overview of Grayson County’s property tax system, recent market trends, and how to appeal your assessment for potential tax savings.
🔹 Grayson Central Appraisal District (GCAD)- oversees property valuations.
🔹 Grayson County Tax Assessor-Collector- collects property taxes based off of Grayson CAD’s valuations
🔹 Property Taxpayers' Bill of Rights
🔹 The deadline to appeal your 2025 property tax assessment is May 15.
📞 Need help filing a protest? Get a Free Consultation or Sign Up to Protest Now