Collin County Property Tax Protest (Plano & Frisco)

Protest Collin County taxes by May 15, 2026. Collin CAD Form 50-132, §41.461 evidence exchange, Plano / Frisco comps, $29.99 packet.

Collin County homeowners receive appraised values from Collin Central Appraisal District (Collin CAD) across Plano, Frisco, McKinney, Allen, Prosper, and Wylie — some of the most competitive suburban markets in Texas. That January 1 Collin County value drives school, city, and county tax bills.

Collin County panels expect hyper-local comps and honest new-vs-resale separation. A 1980s tract home in east Plano is not the same product as a 2024 build in Prosper or a master-planned Frisco patio home; mixing them weakens your protest.

School district boundaries matter as much as city limits. Frisco ISD, Plano ISD, McKinney ISD, and Allen ISD segments often price differently even inside the same Collin County ZIP. File Form 50-132 on time, then bring phase-matched sales and a clear market-value conclusion — not a countywide median argument.

Collin CAD staff frequently offer informal review before the Collin County ARB. Treat it as negotiation, not a courtesy call: arrive with Plano or Frisco comps tied to January 1, a one-page map, and a single market-value ask. Phase-matched sales beat countywide medians — many Collin appeals close at informal when owners show equity inside the same subdivision; reserve ARB time for cases where staff will not move off bulk appraisal models.

Request Collin CAD’s §41.461 evidence packet after filing and upload supplemental comps before the portal deadline on your account. Responding to Collin CAD’s hearing evidence with ISD- and phase-matched sales is usually stronger than debuting a packet at the Collin County ARB.

When is the Collin County property tax protest deadline for 2026?

May 15, 2026, or 30 days after your Collin CAD notice — whichever is later.

Texas Property Tax Code gives you until May 15, 2026, or 30 days after your Notice of Appraised Value is mailed — whichever date is later.

File Form 50-132 (Notice of Protest) with your Central Appraisal District before the deadline; late filings are generally rejected.

Who do I file a Collin County protest with?

File your Collin County protest with Collin Central Appraisal District. Protest filing, property search, evidence upload.

Collin Central Appraisal District

Protest filing, property search, evidence upload

Collin CAD exemptions

Homestead and special exemption applications

Collin County Tax Assessor-Collector

Tax bills and payment — not protest filing

How do I protest property taxes in Collin County?

Frisco ISD vs. Plano ISD vs. McKinney ISD segments differ — comps should share school district and product type when possible.

Check Collin CAD neighborhood code and schools

Frisco ISD vs. Plano ISD vs. McKinney ISD segments differ — comps should share school district and product type when possible.

File Form 50-132 online

Use Collin CAD digital tools early in April; save confirmation and watch email for evidence upload windows.

Exchange §41.461 evidence with Collin CAD

Obtain the §41.461 information Collin CAD will use at hearing, review those comps, and upload your supplemental packet before the evidence deadline on collincad.org.

Build a Collin County comp grid

Separate new construction from resale; adjust for lot premiums, golf or amenity HOAs, and builder phase. Keep Frisco, Plano, McKinney, and Allen circles distinct.

Informal review or ARB

Collin County panels see high volumes — concise packets with a concluded value win. Bring the same packet you would show ARB to informal review.

What form do I file for a Collin Central Appraisal District protest?

Form 50-132 (Notice of Protest): Required Collin CAD filing to challenge 2026 market value or unequal appraisal.

Form 50-132 — Notice of Protest

Required Collin CAD filing to challenge 2026 market value or unequal appraisal.

Form 50-843 — Appointment of Agent

Use if a representative (not required for most Collin County homeowners) will appear for you.

What happens at a Collin County ARB hearing?

Hearings move quickly. Lead with your concluded market value, two or three best phase-matched sales, then equity among peer Collin County homes if time allows.

Informal conference

Collin CAD negotiates many cases informally when new-vs-resale separation and school-matched comps are clear. Bring two copies of your comp map, your §41.461 response, and a one-page value conclusion; ask for a written outcome if staff offer a number.

§41.461 evidence exchange

After Form 50-132 is on file, request the information Collin CAD plans to introduce at your Collin County ARB hearing under Texas Tax Code §41.461. Review those comps for ISD, phase, or new-build mismatches, then upload supplemental Plano / Frisco / McKinney sales before the collincad.org portal deadline.

Collin County ARB

Hearings move quickly. Lead with your concluded market value, two or three best phase-matched sales, then equity among peer Collin County homes if time allows.

What evidence does Collin Central Appraisal District / the ARB actually use?

Hyper-local Collin County comps matched to city, school district, and product type (Plano, Frisco, McKinney, Allen, Prosper).

Hyper-local Collin County comps matched to city, school district, and product type (Plano, Frisco, McKinney, Allen, Prosper).

New construction vs. resale separation with phase-level sales near January 1, 2026.

Equity when Collin CAD modeling treats your segment above peer homes on the same street or in the same neighborhood code.

Lot premium, golf, and HOA amenity adjustments when paired sales support them.

FAQ

What is the Collin County property tax protest deadline for 2026?

May 15, 2026, or 30 days after Collin CAD mails your Notice of Appraised Value — whichever is later. File Form 50-132 at collincad.org before that date.

Where do I file a Collin County protest?

File Form 50-132 with Collin Central Appraisal District at collincad.org. The Collin County Tax Assessor-Collector handles bills, not appraisal protests.

How do I protest Collin County property taxes step by step?

Pull your Collin CAD account, file Form 50-132 before the deadline, build January 1 comps matched to your Plano / Frisco / McKinney / Allen submarket and school district, attend informal review, and escalate to the Collin County ARB if needed.

How should I protest new construction in Frisco or Prosper?

Use sales of similar new builds closed near January 1 in the same Collin County phase or competing builder phase — not older resales from unrelated subdivisions.

Can I use equity arguments in Collin County?

Yes. Texas law allows unequal appraisal when similar Collin County homes show lower implied values — support it with a peer grid, not countywide averages.

Does Protestly help with Collin County protests?

Yes — Protestly builds comparable sales evidence packets for Collin County residential properties for $29.99.

Should I mix Plano and Frisco comps?

Usually no. Collin County buyers and school premiums differ — keep comps inside the same city/ISD and product type whenever possible.

How does §41.461 evidence work at Collin CAD?

After Form 50-132 is filed, you can obtain the information Collin CAD plans to use at your Collin County ARB hearing. Review that packet, upload your supplemental evidence before the portal deadline, and lead informal review with phase-matched Plano or Frisco comps.