2026 Protest Season
Collin County Property Tax Protest
Automated comparable property analysis for Plano-area homeowners. Enter your address to see if the evidence supports a protest with the Collin Central Appraisal District (CCAD).
Check your Collin County property
Free property lookup. Full analysis and protest packet for $35.
Enter Your AddressProtesting Property Taxes in Collin County
Collin County is one of the fastest-growing counties in Texas, with rapid development in Frisco, Prosper, and Celina driving new construction and rising property values. This growth creates frequent disparities between older home assessments and new-build pricing.
Collin County's explosive growth has made it one of the most-protested appraisal districts in the DFW metroplex. The county has added tens of thousands of new homes in communities like Frisco, Prosper, and Celina in recent years. These new-build prices can inflate comparable property values used by the appraisal district, even for existing homes that are older, smaller, or have fewer upgrades. Homeowners in established neighborhoods in Plano, Allen, and McKinney may find their values increased based on new-construction sales nearby that are not truly comparable. The unequal appraisal argument is often particularly effective in Collin County, where similar-aged homes in the same subdivision may have significantly different assessed values per square foot. CCAD offers online filing through their website and provides property search tools to review comparable assessments.
Collin County at a Glance
Major Cities
Plano
McKinney, Frisco, Allen, Wylie, Prosper
Median Home Value
$400,000-$480,000
Approximate range
Standard Protest Deadline
May 15, 2026
Or 30 days after notice, whichever is later
What the Analysis Covers for Collin County Properties
Our automated analysis evaluates two independent protest arguments for your Collin County property:
Market Value (§ 41.41)
Compares your appraised value to recent comparable sales and an independent automated valuation model. If CCAD set your value above market, this analysis documents the gap.
Unequal Appraisal (§ 41.43)
Compares your improvement value per square foot to similar Collin County properties. If your assessment is higher than the median, the evidence supports an equity-based reduction.
Both analyses use publicly available CCAD appraisal records and comparable sales data via the ATTOM national property database — the same underlying data CCAD uses to set your value.
How to File a Protest with CCAD
- Receive your Notice of Appraised Value from CCAD (typically mailed in April).
- File Form 50-132 (Notice of Protest) before the deadline — online at www.collincad.org, by mail, or in person.
- Select your protest grounds: "Value is over market value" and/or "Value is unequal compared with other properties."
- Attend your informal hearing with your evidence (our PDF packet is organized for this).
- If not resolved at the informal stage, proceed to a formal ARB hearing.
Collin County Protest FAQ
How do I file a protest with CCAD?
File online at collincad.org, by mail, or in person at 250 Eldorado Pkwy, McKinney, TX 75069. Online filing is available and provides confirmation of receipt.
Why are Collin County appraisals rising so fast?
Rapid population growth and new construction in cities like Frisco, Prosper, and Celina are driving up comparable sales prices. The appraisal district uses these sales to set values for all nearby properties, including older homes that may not be truly comparable.
What is the protest deadline for Collin County?
The standard deadline is May 15 or 30 days after your notice is mailed, whichever is later. CCAD typically mails notices in April.
Is the unequal appraisal argument effective in Collin County?
Yes, often very effective. In rapidly developing areas, similar homes in the same subdivision can have significantly different assessed values per square foot. This creates strong grounds for an unequal appraisal protest under § 41.43.
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This page is for informational purposes only and does not constitute legal advice or property tax consulting services. Data sources include publicly available appraisal district records. For advice specific to your situation, consult a licensed property tax consultant or attorney.