Williamson County
Property Tax Guide
Williamson Central Appraisal District (WCAD)
Contact Your CAD
Always verify this link is current at your CAD's official website before filing.
Important: Verify all procedures with WCAD at wcad.org or 512-930-3787. This is educational content only — not legal, tax, or appraisal advice.
Typical Protest Deadline
May 15 or 30 days after the Notice of Appraised Value is mailed, whichever is later.
This is the general rule. Always confirm the exact deadline directly with Williamson Central Appraisal District (WCAD).
Estimate Your Specific Deadline
Enter your notice mail date for a personalised estimate.
General Filing Steps
- 1
Receive your Notice of Appraised Value (typically mailed April–May).
- 2
Review the assessed value on the WCAD website and compare to your opinion of market value.
- 3
File a protest online at wcad.org, by mail, or in person at the CAD office before the deadline.
- 4
Gather comparable sales data and any evidence of property condition issues.
- 5
Attend your informal hearing with a CAD appraiser.
- 6
If unresolved, request a formal ARB (Appraisal Review Board) hearing.
- 7
Accept the final value or pursue binding arbitration / district court appeal.
Commonly Required Documents
- Notice of Appraised Value (or your CAD property account number)
- Recent comparable sales (within 0.5–1 mile, similar size/age/condition)
- Photos documenting any property condition issues
- Recent appraisal or licensed inspection report (if available)
- Repair estimates for documented damage
Evidence Tips for Williamson County
- Williamson County experienced dramatic value increases — current market correction is relevant.
- Round Rock, Cedar Park, Georgetown all have distinct micro-markets.
- Check WCAD for accurate floor plan data — additions are sometimes not recorded.
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