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Updated 2025 Tax Year

Galveston County
Property Tax Guide

Everything you need to know about property taxes in Galveston County, TX. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
Quick Facts
Tax Rate
2.0% to 2.8% effective rate (varies by location and taxing districts)
1st Due
Jan 31
Exemptions
5+ Available
Section 1

How Property Tax Works

Galveston County property taxes are the primary funding mechanism for local government services including schools, county operations, municipal services, and special districts such as water, emergency services, and transportation authorities. Property taxes in Galveston County are assessed annually based on the appraised value of real estate as of January 1st each year, with the Galveston Central Appraisal District determining property values and various taxing entities setting their individual tax rates.

The effective property tax rate in Galveston County typically ranges from approximately 2.0% to 2.8% of assessed value, depending on your specific location within the county. This variation occurs because property owners pay taxes to multiple overlapping jurisdictions - the county, school district, city or municipal utility district, and various special purpose districts. Each taxing entity sets its own rate, and the combination of these rates determines your total property tax burden. Residents in incorporated cities like Galveston, League City, or Texas City will have different total rates than those in unincorporated areas or special utility districts.

Section 2

What Makes Up Your Tax Bill

ComponentRate (per $100)Description
Galveston County~$0.38County operations, roads, law enforcement, courts
School District~$1.25-$1.45Local school district operations and debt service
City of Galveston$0.408850Municipal services, police, fire, parks (FY 2024-2025)
Emergency Services District~$0.08-$0.12Fire and emergency medical services
Water/Utility Districts~$0.15-$0.45Water, sewer, drainage infrastructure
Port/Navigation District~$0.02-$0.05Port facilities and waterway maintenance

Note: These rates apply to the 2024-2025 tax year and vary significantly by location within Galveston County. Properties may be subject to additional special district assessments not listed above. The City of Galveston rate shown was approved in September 2024. Rural areas and municipal utility districts will have different rate combinations.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Galveston County, property taxes are due in two installments:

First Installment
Jan 31
Delinquent after Dec 10
Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental property taxes in Galveston County are triggered when there are changes in property ownership, completion of new construction, or significant improvements that were not included in the original January 1st assessment. The most common trigger is the completion of new construction or major renovations that add value to a property after the January 1st assessment date but before the end of the tax year.

Supplemental taxes are calculated by taking the added assessed value from the improvement or change, multiplying it by the applicable tax rate for all taxing districts, and prorating it based on the number of months remaining in the tax year. For example, if you complete a $50,000 home addition in July and your combined tax rate is 2.5%, you would owe a supplemental tax of approximately $625 ($50,000 × 0.025 × 6/12 months). Supplemental tax bills are typically issued within 30-60 days of the triggering event and have separate due dates from your regular annual property tax bill.

Example Calculation

$300,000 Property Value:

  • Assessed Value: $300,000
  • Less: Homestead Exemption (school district): -$100,000
  • Less: City Homestead Exemption: -$60,000
  • Net Taxable Value: $240,000
  • Combined Tax Rate: 2.4%
  • Annual Tax: $5,760
  • Monthly Escrow: $480

$600,000 Property Value:

  • Assessed Value: $600,000
  • Less: Homestead Exemption (school district): -$100,000
  • Less: City Homestead Exemption: -$60,000
  • Net Taxable Value: $540,000
  • Combined Tax Rate: 2.4%
  • Annual Tax: $12,960
  • Monthly Escrow: $1,080

$1,000,000 Property Value:

  • Assessed Value: $1,000,000
  • Less: Homestead Exemption (school district): -$100,000
  • Less: City Homestead Exemption: -$60,000
  • Net Taxable Value: $940,000
  • Combined Tax Rate: 2.4%
  • Annual Tax: $22,560
  • Monthly Escrow: $1,880

Note: These calculations assume a primary residence with properly filed homestead exemption applications. Exemptions are NOT automatic and require annual application. Tax rates vary by specific location within the county.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Galveston County require property tax escrow accounts for loans with less than 20% down payment, though some lenders may require escrow regardless of down payment amount. Your lender will estimate your annual property tax bill and divide it by 12 to determine your monthly escrow payment, which is collected along with your principal and interest payment. Lenders typically maintain a cushion of 2-6 months of tax payments in your escrow account to ensure adequate funds are available when taxes become due.

Property taxes in Galveston County become due on January 31st each year, though split payment options are available with the first half due November 30th and the second half due June 30th. Your lender will pay the taxes directly to the Galveston County Tax Office from your escrow account. You should receive an annual escrow analysis from your lender showing the account activity and any adjustments to your monthly payment. It's important to verify that your lender has paid your taxes correctly and on time, as you remain ultimately responsible for ensuring payment even when using an escrow account.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in Galveston County? A: For the 2024-2025 tax year, property taxes are due January 31, 2025. Split payment options are available with the first half due November 30, 2024, and the second half due June 30, 2025.

Q: What homestead exemptions are available and how do I apply? A: The school district homestead exemption provides $100,000 off assessed value for your primary residence, and the City of Galveston offers an additional $60,000 exemption. These are NOT automatic and require application with the Galveston Central Appraisal District. The homestead designation also caps annual assessment increases at 10%.

Q: What is the 10% assessment cap and how does it work? A: The homestead cap limits increases in your property's assessed value to 10% per year, not the market value. This applies only to properties with an approved homestead exemption application on file. The cap does not reduce your property's market value but limits how much the taxable assessment can increase annually.

Q: How do I pay my property taxes online? A: Visit the Galveston County Tax Office website and click the "Look Up/Pay Property Taxes" button. You can pay by bank transfer or credit card, though credit card payments incur additional fees.

Q: What are the penalties for late payment? A: Texas law imposes a 6% penalty in February, 7% in March, 8% in April, 9% in May, 10% in June, and 12% in July and thereafter. Interest accrues at 1% per month on the total amount owed including penalties.

Q: How can I appeal my property assessment? A: File a protest with the Galveston Central Appraisal District by May 15th (or 30 days after receiving your notice, whichever is later). Appeals can be filed online, by mail, or in person.

Q: Are there additional exemptions for seniors or disabled veterans? A: Yes, additional exemptions are available for homeowners 65 and older, disabled persons, and disabled veterans. These require separate applications with the appraisal district and have specific qualification requirements and deadlines.

Q: Why do special districts affect my tax rate? A: Galveston County has numerous special purpose districts for services like emergency response, water/sewer, drainage, and port operations. Your property's location determines which districts serve you, and each district sets its own tax rate that appears as a separate line item on your tax bill.

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