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Updated 2025 Tax Year

Brazoria County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
2.5%-3.2% of assessed value (varies by taxing districts in your area)
1st Due
Jan 31
Exemptions
5+ Available
Section 1

How Property Tax Works

Brazoria County property taxes fund essential local services including schools, roads, emergency services, and county operations. The county operates under Texas property tax law, which requires annual assessments based on market value as of January 1st. Property owners receive tax bills that reflect the combined rates of multiple taxing entities serving their specific location.

The effective tax rate in Brazoria County typically ranges from 2.5% to 3.2% of assessed value, depending on your location within the county. This variation occurs because different areas are served by different combinations of school districts, municipal utility districts, emergency services districts, and other special purpose districts. The Brazoria County Appraisal District determines property values, while individual taxing units set their own rates within state-mandated limits.

Texas law provides a 10% annual cap on assessed value increases for homestead properties, helping protect homeowners from dramatic tax increases due to rising property values. However, this homestead exemption requires an application and only applies to your primary residence.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
County0.45%Brazoria County general operations (FY 2025)
School District1.15-1.35%Varies by district (Alvin, Brazosport, etc.)
City/Municipality0.35-0.65%Varies by incorporated city
Emergency Services0.08-0.12%ESD rates vary by district
MUD/Utility Districts0.25-0.75%Municipal Utility District rates
Hospital District0.18%Brazoria County Hospital District
Community College0.15%Brazoria County community college

Note: Actual tax rates vary significantly by location within Brazoria County depending on which special taxing districts serve your property. The total combined rate typically ranges from 2.5% to 3.2%. These rates apply to the FY 2025-2026 tax year.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Brazoria 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 Brazoria County are additional property tax assessments that occur when property ownership changes hands or when new construction is completed during the tax year. Unlike the regular January 1st assessment date, supplemental taxes capture mid-year changes in property value or ownership.

The most common trigger is the purchase of a home at a price significantly higher than the previous assessed value. When this occurs, the Brazoria County Appraisal District may issue a supplemental assessment for the difference between the old and new valuations, prorated for the remaining months in the tax year. New construction, additions, or major improvements that increase property value can also trigger supplemental assessments.

Example: If you purchase a home in June appraised at $400,000 but buy it for $500,000, you may receive a supplemental tax bill for the additional $100,000 in value, calculated at your combined tax rate and prorated for 7 months (June through December). At a 3% total tax rate, this would result in a supplemental bill of approximately $1,750 ($100,000 × 0.03 × 7/12).

Example Calculation

$300,000 Home

  • Market Value: $300,000
  • Homestead Exemption: -$100,000 (school district portion)
  • Net Taxable Value: $300,000 (county/other) + $200,000 (school) = $500,000 total basis
  • Combined Tax Rate: 2.8% (estimated)
  • Annual Tax: ~$7,200
  • Monthly Escrow: ~$600

$600,000 Home

  • Market Value: $600,000
  • Homestead Exemption: -$100,000 (school district portion)
  • Net Taxable Value: $600,000 (county/other) + $500,000 (school) = $1,100,000 total basis
  • Combined Tax Rate: 2.9% (estimated)
  • Annual Tax: ~$16,100
  • Monthly Escrow: ~$1,342

$1,000,000 Home

  • Market Value: $1,000,000
  • Homestead Exemption: -$100,000 (school district portion)
  • Net Taxable Value: $1,000,000 (county/other) + $900,000 (school) = $1,900,000 total basis
  • Combined Tax Rate: 3.0% (estimated)
  • Annual Tax: ~$27,700
  • Monthly Escrow: ~$2,308

Important: Homestead exemption requires application and only applies to primary residence. Exemptions reduce assessed value for specific taxing entities but must be filed with the Brazoria County Appraisal District.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Brazoria County require property tax escrow accounts, where you pay 1/12th of your estimated annual tax bill with each monthly mortgage payment. Your lender collects these funds and pays your property taxes directly to Brazoria County when due. This protects both you and the lender from potential tax liens.

Property taxes in Brazoria County are typically due in two installments: the first half by November 30th and the second half by May 31st of the following year. However, if you choose the single payment option, the full amount is due by January 31st. Your lender will receive tax bills directly and make payments according to this schedule using your escrow funds.

At least once per year, your lender will conduct an escrow analysis to ensure adequate funds are being collected. If property values or tax rates increase significantly, you may need to increase your monthly escrow payment or pay a shortage. You can request to review tax bills and escrow statements to verify accuracy, and you have the right to appeal property assessments through the Brazoria County Appraisal District if you believe your home is overvalued.

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 Brazoria County for FY 2025-2026? A: You have two payment options: split payments with first half due November 30, 2025 and second half due May 31, 2026, or single payment due January 31, 2026. Contact Brazoria County Tax Office at (979) 864-1320 for specific deadlines.

Q: What homestead exemptions are available and do they apply automatically? A: The primary homestead exemption provides up to $100,000 reduction in assessed value for school district taxes and caps annual assessment increases at 10%. This is NOT automatic - you must file an application with Brazoria County Appraisal District at (979) 849-7792. The exemption only applies to your primary residence.

Q: How does the 10% homestead cap work? A: The homestead exemption limits annual increases in your property's assessed value to 10%, even if market value rises more dramatically. This caps assessment growth but doesn't reduce the actual market value. You must apply for homestead exemption to receive this protection.

Q: Are there other tax credits available that require application? A: Yes, senior citizens (65+) and disabled individuals may qualify for additional exemptions that reduce taxable value. Veterans may qualify for exemptions based on disability rating. All require separate applications with specific documentation and deadlines, typically by April 30th.

Q: How do I appeal my property assessment? A: Contact Brazoria County Appraisal District at help@brazoriacad.org to request an informal review first. Formal appeals must be filed with the Appraisal Review Board, typically by May 31st following the tax year. You'll need comparable property values and evidence supporting your position.

Q: What are the penalties for late tax payments? A: Penalties begin accruing February 1st for single payments or after each installment due date for split payments. Penalty rates increase over time and interest compounds monthly. Contact the tax office immediately if you cannot make payments on time to discuss options.

Q: Can I pay property taxes online? A: Yes, Brazoria County offers online payment options. Visit the Brazoria County Tax Office website or call (979) 864-1320 for current online payment methods, accepted payment types, and any convenience fees that may apply.

Q: Why do tax rates vary within Brazoria County? A: Different areas are served by different combinations of school districts, municipal utility districts, emergency services districts, and other special taxing units. Each sets its own rate within state limits, creating variation in total tax burden based on your specific location and the services provided to your area.

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