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Updated 2025 Tax Year

Armstrong County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
$0.466181 per $100 appraised value (county portion only, varies by district with school/municipal additions)
1st Due
Jan 31
Exemptions
5+ Available
Section 1

How Property Tax Works

Armstrong County, Texas operates under the state's property tax system to fund essential local services including schools, county operations, emergency services, and infrastructure maintenance. Property taxes are the primary revenue source for these services, with the county's 2025 tax rate set at $0.466181 per $100 of appraised value - a decrease from the 2024 rate of $0.506760 per $100. This represents the county portion only, and property owners typically pay additional taxes to school districts, municipalities, and special districts depending on their location.

The effective tax rate for properties in Armstrong County varies significantly based on location within the county due to overlapping taxing jurisdictions. Rural properties may pay only county and school district taxes, while properties within incorporated cities pay additional municipal taxes. Special districts for services like hospitals, water, or fire protection add further variations. Texas law provides a 10% annual cap on assessed value increases for homestead properties, and various exemptions are available but must be applied for - they are not automatic.

Section 2

What Makes Up Your Tax Bill

ComponentRate per $100Description
Armstrong County$0.466181County general operations, roads, law enforcement
School DistrictsVaries by districtLocal school funding (state average ~$1.00-$1.30)
MunicipalVaries by cityCity services (where applicable)
Special DistrictsVariesHospital, water, fire, or other special services
Total Estimated Range$1.50-$2.20Combined rate varies by specific location

Note: The county rate decreased from $0.506760 in 2024 to $0.466181 in 2025. School district rates, municipal rates, and special district assessments vary by specific location within Armstrong County. Contact the Armstrong County Appraisal District for your property's specific taxing jurisdictions.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Armstrong 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 Armstrong County are additional property tax assessments that occur when there are changes in property ownership, value, or use during the tax year. The most common trigger is new construction or major improvements completed after the January 1st assessment date. When improvements are finished, the appraisal district assesses the increased value and applies the current tax rate to determine additional taxes owed.

For example, if a homeowner completes a $50,000 addition in June, and the total tax rate for their location is $2.00 per $100, the supplemental tax would be approximately $1,000 ($50,000 ÷ 100 × $2.00). This supplemental bill would be prorated for the remaining months in the tax year and typically due within 30 days of issuance. Property ownership transfers can also trigger supplemental assessments if the property was previously receiving exemptions that no longer apply to the new owner.

Example Calculation

Example 1: $300,000 Home with Homestead Exemption

  • Market Value: $300,000
  • Less School Homestead Exemption: -$100,000
  • Taxable Value: $200,000
  • Estimated Total Tax Rate: $1.80 per $100
  • Annual Tax: $3,600
  • Monthly Escrow: $300

Example 2: $600,000 Home with Homestead and Senior Exemptions

  • Market Value: $600,000
  • Less School Homestead Exemption: -$100,000
  • Less Senior School Exemption (example): -$10,000
  • Taxable Value: $490,000
  • Estimated Total Tax Rate: $1.80 per $100
  • Annual Tax: $8,820
  • Monthly Escrow: $735

Example 3: $1,000,000 Property (No Exemptions)

  • Market Value: $1,000,000
  • Applicable Exemptions: $0
  • Taxable Value: $1,000,000
  • Estimated Total Tax Rate: $1.90 per $100
  • Annual Tax: $19,000
  • Monthly Escrow: $1,583

Note: All exemptions require application and approval. Tax rates vary by specific location within the county.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Armstrong County require property tax escrow accounts to ensure timely payment of property taxes. Lenders collect monthly escrow payments as part of your mortgage payment, typically calculated as your annual tax bill divided by 12, plus a small cushion for potential increases. The lender pays your property taxes directly to Armstrong County when they become due on January 31st each year.

Lenders are required to provide annual escrow analysis statements showing how your escrow funds were used and any adjustments needed for the coming year. If property taxes increase due to higher assessments or rate changes, your monthly escrow payment may increase accordingly. Property owners can verify their tax information through the Armstrong County Tax Assessor-Collector's office and should review their mortgage statements to ensure accurate escrow calculations. Some lenders may allow you to waive escrow requirements if you have significant equity in your property, but you become personally responsible for timely tax payments.

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 Armstrong County property taxes due for 2025? A: Property taxes are due January 31, 2025, with payment options potentially available in installments. Contact the Armstrong County Tax Office for specific payment schedule options.

Q: What tax credits are available and do I need to apply? A: Texas offers exemptions (which reduce taxable value) rather than credits. The $100,000 school homestead exemption is the most common, but you MUST apply - it's not automatic. Other exemptions include senior citizen, disability, and veteran exemptions, all requiring separate applications.

Q: How does the homestead exemption work? A: The homestead exemption provides two benefits: a $100,000 reduction in taxable value for school taxes and a 10% annual cap on assessed value increases. You must file an application with the Armstrong County Appraisal District, and it's not automatically applied.

Q: When are properties assessed and how can I appeal? A: Properties are assessed as of January 1st each year. You'll receive a notice of appraised value in spring. If you disagree, you can file a protest with the Armstrong County Appraisal Review Board, typically by May 15th or within 30 days of receiving your notice.

Q: What are the penalties for late payment? A: Late payments incur penalty and interest charges. Penalties start at 6% in February and increase monthly. Interest accrues at 1% per month on the unpaid balance.

Q: Can I pay my taxes online? A: Contact the Armstrong County Tax Assessor-Collector's office to inquire about online payment options, as availability varies by county in Texas.

Q: How do special district taxes work? A: Depending on your property location, you may pay taxes to hospital districts, water districts, or other special purpose districts. These appear as separate line items on your tax bill with their own rates.

Q: What happens if I miss the exemption deadline? A: Most exemption applications are due by April 30th for the current tax year. Late applications may be accepted with a 10% penalty or in cases of good cause, but contact the Armstrong County Appraisal District immediately if you miss the deadline.

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