How much do senior, disability and veteran exemptions take off school taxes in Williamson County? (DRAFT – not published)

In short

• Exemptions for owners 65 or older, owners with disabilities and disabled veterans took about $5.2 billion off school-tax value in 2026. In 2021 it was about $1.4 billion (our math).¹²
• The age 65+ exemptions grew the most, from about $0.44 billion to about $2.98 billion (our math).¹²
• These are still small next to the whole county. They were about 2.8% of market value in 2026 (our math).¹²

Numbers marked “our math” are our estimates, not official figures. The notes show the inputs and the steps.

How it works

• Every homeowner can get the school homestead exemption. Owners who are 65 or older, or who have a disability, can get an extra amount off for school taxes. State law now sets that extra amount at $60,000.³
• Disabled veterans get their own exemptions. The amount depends on the disability rating. A veteran rated 100% disabled pays no tax on the home.³
• The appraisal district counts the value taken off. This page adds up its school-district rows for the whole county.¹

What the numbers show

Exemption (school taxes)	2021	2026
Age 65 or older	$0.44B	$2.98B
Disabled veterans	$0.98B	$2.09B
Disability	$0.03B	$0.17B
Total	$1.44B	$5.24B
Share of market value	1.3%	2.8%

Source: Williamson Central Appraisal District, certified values. Rounding is ours.¹²

• Veteran exemptions about doubled. Age 65+ exemptions grew almost 7 times (our math).²

The other side

• This is value, not tax dollars. The page does not show how much tax these owners saved or who pays more because of it.
• Both the law and the number of homes changed in these years. This table does not show how much each one mattered.³
• These exemptions are written into state law. Local boards do not choose the state amounts. Some local boards add their own, which shows up as a separate local column in the spreadsheet.¹
• For the full list of what comes off, see from market value to taxable value.

Questions to ask

• How many owners get each exemption, by the appraisal district’s count?
• Where does the appraisal district post exemption totals for each taxing unit?

Changes to this page

• Nov. 2, 2026: Added questions to ask.
• Nov. 2, 2026: We checked every figure against its source. We reworded the other-side points so they stick to what the sources show.

What you can do or watch next

• If you are 65 or older, have a disability or are a disabled veteran, see property tax exemptions for how to apply.
• See exemptions you may be missing for exemptions people often miss.

What we still don’t know

• How many owners get each exemption. The spreadsheet shows value, not the number of owners.
• City and county tax amounts. This page covers school taxes only.

Footnotes

1. Williamson Central Appraisal District, “1999 – 2026 Certified Values” spreadsheet, 2021 and 2026 tabs, school district rows (O65State, O65Local, DPState, DPLocal, DVTaken, Market). https://www.wcad.org/historical-data/ ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

2. Our math, adding the school-district rows ($ millions). 2021: age 65+ 375.6 + 62.5 = 438.1; veterans 975.9; disability 26.9 + 3.9 = 30.8; total 1,444.8; market 107,219.6; share 1.35%. 2026: age 65+ 2,898.0 + 78.6 = 2,976.6; veterans 2,091.4; disability 163.4 + 3.8 = 167.2; total 5,235.2; market 187,383.4; share 2.79%. Growth: 2,976.6 ÷ 438.1 = 6.8; 2,091.4 ÷ 975.9 = 2.1. ↩ ↩² ↩³ ↩⁴ ↩⁵

3. Texas Tax Code §11.13(c) (extra $60,000 school exemption for age 65+ or disability), §11.131 (100% disabled veterans) and §11.22 (disabled veterans). https://statutes.capitol.texas.gov/Docs/TX/htm/TX.11.htm ↩ ↩² ↩³