Collin CAD supports online protest filing and electronic evidence submission. Because so much Collin County housing stock is recent construction in comparable subdivisions, sales-comp and equity evidence is unusually easy to argue when it is well organized. The legal framework is the same statewide: you can argue market value (Tax Code §41.41) and equal-and-uniform appraisal (§41.43) in the same protest, and the deadline is May 15 or 30 days after your notice — whichever is later.
File with Collin Central Appraisal District (Collin CAD)
Deadline: May 15 or 30 days after your notice, whichever is later
Market value and equal-and-uniform arguments can be combined
Most residential protests settle at the informal stage
What the evidence packet includes
The packet is built per property from public records and market data, reviewed by a multi-agent AI pipeline, and delivered as filing-ready documents for $49 flat.
Comparable sales analysis with adjustments and weighting
Equal-and-uniform grid built from Collin CAD's own records where available
Market indicators with sources and why each one matters
Owner opinion of value with the supporting math
Submission PDF, editable Word copy, hearing talking points, and a filing checklist
Cities we'll cover in Collin County
Collin Central Appraisal District appraises all residential property in the county, including Plano, Frisco, McKinney, Allen, Prosper, and the surrounding areas. County seat: McKinney. If your home is anywhere in Collin County, the same protest process and deadline apply.
Why flat fee instead of a percentage
Contingency protest firms typically charge 25–50% of your first-year savings, every year you use them. A $49 flat-fee packet means a homeowner who saves $1,000 keeps $1,000 minus $49 — not $500 to $750. The trade: you file it yourself, with the checklist walking you through each step.
Questions
When is the Collin County protest deadline?+
Texas Tax Code §41.44 sets the deadline at May 15, or 30 days after Collin CAD delivers your notice of appraised value, whichever is later. If you miss it, you generally wait until next year — which is why we open the waitlist early.
Do you file the protest with Collin CAD for me?+
No. This is a self-file document product. You file the protest with Collin Central Appraisal District yourself — the packet includes the evidence documents and a step-by-step filing checklist.
Do you guarantee Collin CAD lowers my value?+
No. Collin Central Appraisal District and the Collin County appraisal review board decide final values. The product is the evidence packet, not a guaranteed tax result.
When will FightMyAppraisal support Collin County?+
We're expanding beyond Travis County for the 2027 notice season, prioritizing counties by waitlist demand. Join the waitlist and we'll email you when Collin County support opens.
Prepare for next season
Join the 2027 Travis County notification list.
We will email you when 2027 notices become actionable and the packet workflow reopens.