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Updated 2025 Tax Year

Aransas County
Property Tax Guide

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

10 Official Sources
8 min read
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Quick Facts
Tax Rate
0.73% to 1.60% of assessed value, varies by taxing districts and municipality
1st Due
Jan 31
Exemptions
5+ Available
Section 1

How Property Tax Works

Aransas County, Texas operates under the state's property tax system, where property taxes serve as the primary funding mechanism for local government services, schools, and special districts. The county encompasses several municipalities including Rockport and Fulton, along with various special taxing districts that provide services such as road maintenance, flood control, and navigation improvements. Property owners in Aransas County can expect effective tax rates ranging from approximately 0.73% to over 1.60% of assessed value, depending on their specific location and the combination of taxing entities that serve their property.

The actual tax rate you pay depends heavily on which taxing districts your property falls within. For example, properties within Rockport city limits face a total rate of $1.602474 per $100 of valuation, while properties in unincorporated county areas may pay significantly less at around $0.733163 per $100. The Rockport-Fulton Independent School District, Aransas County Navigation District, and Road-Flood District each add their own levies to the base county rate. Understanding your property's location within these overlapping jurisdictions is crucial for accurately calculating your annual property tax obligation.

Section 2

What Makes Up Your Tax Bill

The following rates apply to the 2025 tax year in Aransas County:

ComponentRate per $100Description
Aransas County Ad Valorem$0.333155Base county services
County M&O (outside RFSD)$0.409099County maintenance & operations
County I&S (outside RFSD)$0.286743County interest & sinking fund
County in RFISD District$1.175999County rate within school district
Aransas County Road-Flood$0.045345Road maintenance and flood control
Aransas County Navigation$0.030599Navigation district services
Rockport-Fulton ISD$0.7669School district levy
City of Rockport (total)$1.602474All entities within Rockport
City of Fulton (total)$1.441051All entities within Fulton

Note: These rates represent the 2025 levy year and vary significantly based on your property's location within the county. Properties may be subject to additional Municipal Utility District (MUD) taxes depending on their specific location.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Aransas 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 taxes in Aransas County are triggered by changes in property ownership, new construction, or other improvements that increase a property's assessed value during the tax year. When these events occur, the county assessor calculates additional taxes based on the increased valuation from the date of change through the end of the current tax year.

For example, if you purchase a home in June that was previously assessed at $200,000 but now appraises at $350,000 due to improvements, you would owe supplemental taxes on the $150,000 difference for the remaining seven months of the tax year. The calculation would be: ($150,000 ÷ 100) × applicable tax rate × (7 months ÷ 12 months). Property owners typically receive supplemental tax bills within 30-90 days after the triggering event, and these are separate from the regular annual property tax bill.

Example Calculation

Example 1: $300,000 Home in Unincorporated County Area

  • Market Value: $300,000
  • Less: Homestead Exemption: $100,000 (school district only)
  • Taxable Value (County): $300,000
  • Taxable Value (School): $200,000
  • Annual Tax: ~$2,197
  • Monthly Escrow: ~$183

Example 2: $600,000 Home in Rockport

  • Market Value: $600,000
  • Less: Homestead Exemption: $100,000 (school district portion)
  • Taxable Value: $600,000 (most entities), $500,000 (school)
  • Annual Tax: ~$9,079
  • Monthly Escrow: ~$757

Example 3: $1,000,000 Home in Fulton

  • Market Value: $1,000,000
  • Less: Homestead Exemption: $100,000 (school district portion)
  • Taxable Value: $1,000,000 (most entities), $900,000 (school)
  • Annual Tax: ~$13,724
  • Monthly Escrow: ~$1,144

Important: Homestead exemptions require annual application and are not automatic. The 10% homestead cap limits annual assessment increases but does not reduce market value.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Aransas County require borrowers to establish escrow accounts to ensure timely property tax payments. Your lender will collect monthly escrow payments as part of your mortgage payment, typically calculated by dividing your annual property tax bill by 12. Lenders usually maintain a cushion of 1-2 months of payments in the escrow account to handle potential increases in tax assessments.

Property taxes in Aransas County become due on January 31st each year, though some entities may offer quarterly payment options with specific deadlines. Your escrow servicer will typically pay the tax bill directly to the county tax collector before the January 31st deadline. It's important to review your annual escrow analysis statement to ensure adequate funds are being collected, especially after property improvements or significant market value increases that could affect your tax obligation.

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 Aransas County? A: Property taxes are due January 31st for the current tax year. Some taxing entities may offer quarterly payment options with deadlines in April, July, October, and January.

Q: What homestead tax credits are available and do I need to apply? A: The primary homestead exemption provides a $100,000 reduction in assessed value for school district taxes on your primary residence. This exemption requires an application and is not automatic - you must file with the Aransas County Appraisal District.

Q: How does the homestead exemption work? A: The homestead exemption reduces your taxable value by $100,000 for school taxes and caps annual assessment increases at 10%. It does not reduce your property's market value, only the amount subject to taxation.

Q: When is the deadline to apply for homestead exemption? A: Applications must be filed by April 30th of the tax year. Late applications may be accepted with penalty in certain circumstances.

Q: How often are properties reassessed? A: The Aransas County Appraisal District reviews property values annually, with formal reappraisals conducted regularly to ensure current market valuations.

Q: What are the penalties for late tax payments? A: Late payments incur penalty and interest charges. After January 31st, a 6% penalty is added in February, with additional penalties and interest accruing monthly thereafter.

Q: Can I pay my property taxes online? A: Yes, Aransas County offers online payment options through the Tax Assessor-Collector's website. Check the official county website for current payment portal information.

Q: Why do tax rates vary so much within Aransas County? A: Tax rates depend on which combination of taxing entities serve your property, including the county, school district, municipality, and special districts like road-flood or navigation districts.

Q: How do I appeal my property assessment? A: Property owners can appeal their assessed values through the Aransas County Appraisal Review Board. Appeals must typically be filed by May 31st or within 30 days of receiving your notice of assessed value.

Q: What happens if I miss the homestead exemption deadline? A: Late homestead applications may be accepted with a 10% penalty of the tax savings. Contact the Aransas County Appraisal District immediately if you've missed the deadline.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
Tax Doc
2025 tax rates (per $100 value) for entities collected by ...aransascountytx.gov
02
County
County Rates and Levies (XLSX)comptroller.texas.gov
03
Agenda - 09/15/2025aptx.gov
04
Tax Doc
96-1717 Handbook of Texas Property Tax Rulescomptroller.texas.gov
05
Tax Doc
Property Tax Law Deadlines - Texas Comptrollercomptroller.texas.gov
06
Tax Doc
Property Tax Today - Texas Comptrollercomptroller.texas.gov
07
County
Aransas County Appraisal Districtcomptroller.texas.gov
08
gonoreble Gee. ii. Sheppard Comptroller df I%blic Amounts ...texasattorneygeneral.gov
09
2024 ISD Summary Worksheet - Texas Comptroller - Texas.govcomptroller.texas.gov
10
County
aransas county venue tax reportaransascountytx.gov
All sources verified as of 2025 Tax Year

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