How to Protest Your Property Tax in Galveston County, Texas

Galveston County is the southeastern flank of greater Houston — a long, narrow county that stretches from the Friendswood suburbs through the industrial Texas City corridor, across Galveston Bay, and out to the Bolivar Peninsula. Property dynamics vary enormously across the county: bedroom-community suburbs in the north, refinery-adjacent industrial areas in the middle, historic coastal property on Galveston Island, and high-risk hurricane-exposure properties at the southern edge. The Galveston Central Appraisal District handles approximately 200,000 parcels.

Galveston CAD by the numbers

Galveston County covers approximately 873 square miles. Major population centers: League City (~115,000 residents, largest city in the county), Texas City (~52,000), La Marque (~17,000), Friendswood (~40,000 total population, split with Harris), Dickinson (~21,000), Santa Fe (~13,000), Hitchcock, Galveston Island (~52,000), Bayou Vista, Tiki Island, and the Bolivar Peninsula communities (Crystal Beach, Gilchrist, Port Bolivar, High Island).

Coastal property considerations

Galveston is one of two Texas counties with significant coastal residential property exposure (Brazoria County is the other). Coastal appraisal involves several factors that make protests more complex than typical residential cases:

• Storm surge and hurricane risk — properties below specific elevation thresholds carry higher insurance costs and reduced marketable value
• Beach erosion — Galveston Island has experienced documented erosion in specific stretches; lot sizes can effectively shrink without being reflected in CAD records
• Post-storm valuation — after major hurricanes (Ike 2008, Harvey 2017, more recent events), market values experienced significant volatility that mass-appraisal models capture with lag
• Vacation vs. primary residence — Galveston Island has many properties that are not the owner's homestead, which puts them under the §23.231 circuit breaker (20% annual cap on appraised value) rather than the §23.23 homestead cap (10%)

For Galveston Island vacation properties owned by mainland owners, the §23.231 cap (covered in our circuit-breaker guide) is often the most consequential statutory protection.

Filing your protest, step-by-step

1Pull your record

Visit galvestoncad.org and search for your property. Verify square footage, year built, structures, exemptions.

2File via the online portal

Register an account on galvestoncad.org. File the protest checking both "Value over market" and "Unequal appraisal" grounds. Alternative: mail Form 50-132 to 9850 Emmett F Lowry Expressway, Texas City, TX 77591.

3-6Standard protest workflow

Pull comparables (subdivision filter, ±25% sqft, ±10 years year built), compute median per-sqft, build packet, request CAD evidence under §41.461, attend hearing. See our comparables how-to and ARB hearing playbook.

By area — League City, Texas City, Friendswood (GC), Dickinson, Galveston Island

Galveston County tax rates by taxing entity

Entity	Approx. rate (per $100)
School district (Clear Creek ISD, Friendswood ISD, Texas City ISD, etc.)	~$1.05 – $1.30
City of League City / Texas City / Galveston / etc.	~$0.40 – $0.60
Galveston County	~$0.40
College of the Mainland or Galveston College	~$0.13
MUD or Emergency Services (varies)	~$0.10 – $0.70
Approximate combined	~$2.10 – $2.75 per $100 (≈2.1–2.75%)

Five Galveston-specific mistakes

1. Treating Friendswood as a single tax stack

Friendswood straddles Galveston/Harris counties with different county tax rates. The Harris portion uses HCAD and Harris county tax structures (Harris Health, Flood Control).

2. Ignoring §23.231 on vacation properties

If your Galveston Island property is a vacation home (not homestead), the §23.231 circuit breaker (20% annual cap) applies — but only if the CAD has correctly classified it as non-homestead residential. Verify your classification.

3. Skipping condition adjustments in historic Galveston

Historic Galveston neighborhoods (East End Historic District, Lost Bayou, Silk Stocking) have wide property-condition variation. Per-sqft comps without condition adjustment are weak here. Document specific issues with photos and contractor estimates.

4. Missing post-storm depreciation impact

If a hurricane or major storm damaged your property in the recent past and the appraisal hasn't reflected residual issues, file a §11.35 temporary disaster exemption claim in addition to the protest.

5. Not requesting Galveston CAD's evidence packet

The §41.461 right to the CAD's evidence packet at least 14 days before the formal hearing is underused.

FAQ

How do I file a property tax protest in League City?

Most of League City is in Galveston County — file with Galveston CAD via galvestoncad.org. The northern slivers in Harris County file with HCAD via hcad.org.

Are Galveston Island vacation homes treated differently?

Vacation/second-home properties are non-homestead residential and qualify for the §23.231 circuit breaker (20% annual cap) if appraised under $5M. Most Galveston Island vacation homes qualify. Homestead-status verification is the key.

How long does a Galveston CAD protest take?

6-10 weeks from filing to formal ARB determination. Informal-review settlements often close in 3-5 weeks.