Williamson County is the fastest-growing county in the United States â and that explosive growth has created one of the most significant property tax protest opportunities in all of Texas. The Williamson Central Appraisal District (WCAD) values over 300,000 parcels annually across Round Rock, Cedar Park, Georgetown, Leander, Liberty Hill, and dozens of other fast-developing communities. Texas law gives every Williamson County homeowner the right to protest every year.
How WCAD Values Your Property
The Williamson Central Appraisal District uses computer-assisted mass appraisal to value all real property in Williamson County as of January 1st each year. Williamson County's extraordinary growth creates particular valuation challenges. When Austin-area prices surged 40-50% between 2020 and 2022, WCAD assessments followed aggressively. When the market corrected in 2023-2024, WCAD was slow to follow. The result: many Williamson County homeowners are still assessed at peak-market values that significantly exceed what their homes would sell for today.
WCAD 2026 Protest Deadline
The Williamson Central Appraisal District mails Notices of Appraised Value in April. Your protest deadline is the later of May 15, 2026, or 30 days from the mailing date on your notice.
- ✓Standard deadline: May 15, 2026
- ✓Extended: 30 days from notice mail date if mailed after April 15
- ✓WCAD address: 625 FM 1460, Georgetown, TX 78626
- ✓Online protest filing available at wcad.org
- ✓TaxAppeal files via USPS certified mail with return receipt
Williamson County Market Context for 2026
The Austin metro was one of the hottest real estate markets in the country from 2020 to 2022. Median home prices in Round Rock, Cedar Park, and Georgetown jumped 40-50% in two years. Since then, rising interest rates have significantly cooled demand. Active inventory in communities like Leander and Liberty Hill has climbed, and WCAD's 2026 assessments still lag the real-time market in many neighborhoods.
Building Your Williamson County Protest Case
The most effective WCAD protests combine comparable sales evidence with property-specific documentation. Hyper-local comps from your immediate subdivision carry the most weight.
- ✓Comparable sales: Recent closed sales within your subdivision, similar size, age, and condition
- ✓New construction competition: Evidence of new homes selling at or below your assessed value
- ✓Market time: Evidence that homes in your area are sitting longer
- ✓Property defects: Foundation issues, roof condition, HVAC age, deferred maintenance
- ✓WCAD record errors: Wrong square footage, bedroom count, pool status, or lot acreage
Williamson County Cities: Full WCAD Coverage
The Williamson Central Appraisal District covers all of Williamson County including Round Rock, Georgetown, Cedar Park, Leander, Liberty Hill, Taylor, Hutto, Pflugerville (Williamson County portions), Brushy Creek, Jarrell, and all unincorporated areas.
Why $79 Flat Beats Contingency in Williamson County
With Williamson County's high property values, contingency fees add up fast. A 25% contingency on $1,800 annual savings is $450 per year â every year. Over five years at 25% contingency: $2,250 in fees. Five years with TaxAppeal at $79/year: $395 total.
Frequently Asked Questions
What is the 2026 WCAD protest deadline for Williamson County? ▾
The standard deadline is May 15, 2026. If WCAD mailed your notice after April 15, your deadline extends to 30 days from the notice date. Check the mailing date printed on your Notice of Appraised Value.
Does WCAD cover Cedar Park and Leander? ▾
Yes. The Williamson Central Appraisal District covers all of Williamson County, including Cedar Park, Leander, Round Rock, Georgetown, Liberty Hill, Hutto, Taylor, and all unincorporated areas.
Is Pflugerville in Williamson County or Travis County? ▾
Pflugerville straddles the county line. Most of Pflugerville is in Travis County (TCAD), but portions fall in Williamson County (WCAD). Check your property record to confirm which appraisal district has jurisdiction.
How much can I save protesting WCAD? ▾
Williamson County homeowners who protest successfully save an average of $1,610 per year. With median home values in Round Rock and Cedar Park exceeding $440,000, even a modest 5% reduction produces meaningful tax savings.
Can my Williamson County assessment go up if I protest? ▾
No. Under Texas Tax Code, your assessed value cannot be increased as a result of filing a protest. The worst outcome is that your current assessment stands.
How do I find my WCAD property record? ▾
Visit wcad.org and search by address or account number to view your current assessed value, property details, and prior year history.