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.
About Williamson County Property Taxes
Williamson County sits directly north of Travis County and has grown rapidly as Austin's job market and population have expanded outward. Round Rock, Cedar Park, Georgetown, Leander, and Pflugerville each have distinct residential markets spanning a wide range of price points. Georgetown in particular has been one of the fastest-growing cities in the United States, with a wave of new master planned communities on the county's northern and western edges. Each of these sub-markets behaves differently, and the most useful comparables for a protest are always those from the same city or subdivision rather than county wide averages.
Williamson County experienced dramatic property value increases between 2020 and early 2022, and WCAD appraisals followed that market aggressively in many neighborhoods. Since mid-2022, values have softened in several sub-markets. If your assessed value still reflects prior peak conditions rather than where the market stands today, that gap is often the starting point for a meaningful protest.
Protest Preparation Tips
Before filing your protest with WCAD, organizing the following will help your hearing go smoothly.
- Have your Notice of Appraised Value ready. Your WCAD account number is printed on it.
- Look up your property at wcad.org and verify square footage, year built, and floor plan details. Additions and improvements are sometimes not fully recorded, which can affect your assessed value.
- Pull recent comparable sales from your specific city or subdivision. County wide or even city wide averages can obscure what is actually happening in your immediate market.
- In neighborhoods with significant new construction, use recent resale comparables rather than new construction list prices, which may include builder incentives and lot premiums not reflected in resale market values.
- Photograph any condition issues that affect the property's market value.
Building Your Evidence
WCAD's own database is your starting point for an unequal appraisal argument. Search for homes in your subdivision with similar square footage and year built. If they are assessed at a lower rate per square foot than yours, that disparity is direct evidence under Texas Tax Code Section 41.43 and requires no sale price data to present.
For a market value argument, focus on the most recent closed sales available. Post-2022 data reflecting current market conditions will carry more weight than sales from the prior peak. Georgetown and Leander have seen substantial new inventory come to market since 2022, and recent resale data may show conditions quite different from what WCAD used to set prior year assessments. Also verify your WCAD floor plan record carefully — additions that were permitted but not recorded can inflate the square footage figure driving your assessed value.
Local Verification Reminder
WCAD's filing deadlines, online protest portal, required evidence formats, and hearing procedures should be confirmed directly at wcad.org or by calling 512-930-3787 before you file.
Requirements can change from season to season, and verifying current procedures before your deadline is always worth the extra few minutes.
Helpful Next Steps
- Search wcad.org to verify your square footage, year built, and floor plan details
- File before the deadline and save your confirmation
Sources & Last Verified
This county guide is prepared for general educational purposes using publicly available property tax information, county appraisal district resources, and Texas property tax guidance. Property tax deadlines, forms, protest procedures, and local requirements can change. Always confirm important details directly with your county appraisal district or a qualified professional.
See something outdated or incorrect? Contact us with the county name, page URL, the information that needs correction, and an official source link if available.
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