Collin County is one of the fastest-growing counties in the entire United States. With booming new developments in Frisco, Prosper, and Celina, property values here move fast — and so do appraisals. That makes staying on top of your CAD record, exemptions, and protest rights more important here than almost anywhere else in Texas. This 2026 guide covers everything you need, verified directly from collincad.org.
01Collin County Appraisal District Property Search
The official free property search at esearch.collincad.org gives you instant access to appraised values, ownership, exemptions, improvements, and tax history for every property in Collin County — no account, no fee.
4 Ways to Search — Choose What You Have
Open esearch.collincad.org
Visit esearch.collincad.org. If the main portal shows maintenance, a legacy version is linked on the same page — both return the same official data.
Select your tab and enter search details
Choose Owner, Address, Property ID, or Advanced. For address: enter street number + name. Example: “250 Eldorado Pkwy” with city “McKinney”. Click Search.
Click your property in results
Select your parcel to see: 2026 appraised value, taxable value after exemptions, land and improvement breakdown, exemptions on file, and complete year-by-year tax history.
Check value history — spot protest opportunities
Look at the value history tab. In a fast-growing county like Collin, values can jump 15–25% in a single year. A large spike with no permits or improvements is your strongest protest argument.
New construction nearby can raise your comparables — check whether the CAD is using new build sales to value older homes. That’s often worth protesting.Save record as PDF
Press Ctrl+P (Windows) or Cmd+P (Mac) → Save as PDF. Save both the property detail page and value history. You need these for any protest or exemption application.
02Collin CAD Office Address, Phone & Contact
| Item | Verified Details |
|---|---|
| Office Address | 250 Eldorado Pkwy, McKinney, TX 75069 Easy access off Hwy 75 (US-75 Central Expressway) |
| Local Phone | (469) 742-9200 |
| Toll-Free Phone | (866) 467-1110 — free call from anywhere in TX |
| Office Hours | Monday–Friday, 8:00 AM–5:00 PM |
| Official Website | collincad.org |
| Property Search | esearch.collincad.org |
| Forms & Exemptions | collincad.org/forms-applications |
| GIS Interactive Map | gis.bisclient.com/collincad |
| Tax Payment Portal | taxpublic.collincountytx.gov/search |
| Tax Office Website | collincountytx.gov/Tax-Assessor/property-taxes |
Use the toll-free number — especially during protest season
Collin CAD offers a free toll-free number: (866) 467-1110. During busy protest season (May–July), call at 8:00 AM when they open for shortest wait times. The office is well-staffed for such a large county — professional and helpful. For non-urgent questions, use the contact form at collincad.org to avoid hold times entirely.
03Collin County Homestead Exemption & Other Exemptions — 2026
Collin County is one of the highest-growth counties in Texas — which makes the homestead exemption especially valuable here. Once approved, it caps the amount your taxable value can increase each year (10% annual cap for school districts), protecting you from runaway appraisal spikes in fast-developing areas like Prosper, Celina, and Anna.
Removes $100,000 from your school district taxable value (2023 law change) on your primary residence. Also caps annual taxable value increases at 10% per year for school districts — critical in fast-growing Collin County.
How to apply: Download Form 50-114 from collincad.org/forms-applications. Submit online, by mail, or in person at 250 Eldorado Pkwy McKinney. Attach Texas DL/ID with property address. Deadline: April 30, 2026.Additional $10,000 exemption from school district taxes plus a school tax ceiling — your school district taxes freeze at the level from when you first qualified, regardless of how much your value increases.
When to apply: Apply the year you turn 65. The ceiling takes effect for the entire tax year even if your birthday is late in the year. Extremely valuable in a county where values rise 10–20% annually.Same $10,000 exemption and school district tax ceiling as the Over-65 exemption. Cannot claim both simultaneously — Collin CAD applies whichever benefits you more. Requires SSA disability documentation.
Required docs: SSA disability determination letter. Submit with Form 50-114 to Collin CAD.Partial exemption ($5,000–$12,000) based on VA disability rating. Veterans with 100% service-connected disability rating receive a complete property tax exemption on their primary residence.
Required docs: VA disability rating letter. Download the veteran exemption forms from collincad.org/forms-applications.04How to Protest Your Collin CAD Value — 2026
Collin County’s explosive growth means appraisals can spike significantly in a single year — especially in booming areas like Frisco, Prosper, and Celina where new construction is setting record sale prices. If the CAD is using those new-build comps to value your older home, that’s worth protesting. Filing is free and most informal reviews result in at least a small reduction.
File your protest first — gather evidence after
Visit collincad.org and file your Notice of Protest online. Do this the moment you see a high value — before gathering full evidence. You can upload additional evidence after filing. Never miss May 15 waiting to build the perfect packet.
Always check BOTH protest grounds: “Value is over market value” AND “Value is unequal compared to similar properties.” You cannot add grounds after the filing deadline.Pull comparable sales from Collin CAD’s own search
Use the Advanced search at esearch.collincad.org to find 3–5 similar properties in your subdivision that sold recently below your appraised value. Filtering by subdivision + age + square footage gives the most relevant comps. Print them — appraisers respond best to their own database.
Build your evidence packet
Most effective evidence: comparable sales from the CAD search, your recent purchase price (if below appraised value, bring deed + closing statement), photos of any damage or deferred maintenance, and contractor repair estimates with itemized costs. Print 3 copies of everything.
Attend informal review — argue market value only
Collin CAD will schedule an informal review with an appraiser. Bring your printed evidence. Argue only that the market value is higher than what the property would actually sell for today. Never argue about the tax rate or your tax bill amount — appraisers only control the value, not the rate.
Escalate to ARB hearing if needed
If the informal review doesn’t result in a fair reduction, request a formal Appraisal Review Board (ARB) hearing. The ARB is completely independent from Collin CAD. Bring three printed copies of your full evidence packet and present clearly and factually.
Collin County specific tip: Watch out for new-build comparable contamination
In high-growth subdivisions across Frisco, Prosper, and Celina, CADs sometimes use recent new construction sales as comparable evidence — even to value older existing homes. A brand-new 2024 build with premium finishes is not a fair comparable for your 2015 home. If you see this pattern in your value history, note it explicitly in your protest and find 3–5 resale comps of similar-age homes instead. This argument wins in Collin County more often than people realize.
05Collin CAD vs. Collin County Tax Assessor-Collector
Collin CAD does NOT collect property taxes
Collin CAD only sets property values and handles exemptions and protests. Tax bills, payments, balances, and payment plans are handled by the completely separate Collin County Tax Assessor-Collector. Calling the wrong office wastes time you need for your protest.
| Task | Who Handles It |
|---|---|
| Sets your property’s market value | ✅ Collin CAD — collincad.org · (469) 742-9200 |
| Processes exemptions | ✅ Collin CAD — collincad.org/forms-applications |
| Handles protests and ARB hearings | ✅ Collin CAD — file at collincad.org |
| Sends and collects tax bills | ✅ Collin County Tax Assessor-Collector — separate office |
| Pay property taxes online | ✅ taxpublic.collincountytx.gov/search |
| Tax office locations | McKinney (main), Frisco, Plano — multiple locations for convenience |
| Tax office website | collincountytx.gov/Tax-Assessor/property-taxes |
062026 Collin County Property Tax Calendar
| Event | Date | Action Required |
|---|---|---|
| Valuation date | January 1, 2026 | Value based on market conditions as of this date |
| Appraisal notices mailed | April 2026 | Your 30-day protest clock starts from mailing date |
| Homestead exemption deadline | April 30, 2026 | Apply at collincad.org/forms-applications — free |
| Protest filing deadline | May 15, 2026 Critical or 30 days after notice mailing |
File at collincad.org — miss this and 2026 value is certified |
| ARB hearings | June–August 2026 | Respond to hearing notice — miss it and protest is dismissed |
| Appraisal roll certified | By July 25, 2026 | Values finalized — all taxing units use these to set rates |
| Tax bills mailed | October–November 2026 | Check taxpublic.collincountytx.gov if bill doesn’t arrive |
| No-penalty payment deadline | January 31, 2027 | 7% penalty + interest begins February 1, 2027 |
07Your 2026 Action Checklist — Collin County
08Official Collin CAD Resources — Quick Links 2026
| Resource | What It’s For | Link |
|---|---|---|
| Collin CAD Official Site | Main hub — protest, forms, news, contact | Visit Site |
| Property Search Portal | Look up any Collin County property free | Search Now |
| Forms & Applications | All exemption, protest, and other forms | View Forms |
| GIS Interactive Map | Property boundaries, parcels, schools, subdivisions | Open Map |
| Property Tax Payment Portal | Pay your Collin County tax bill online | Pay Now |
| Collin County Tax Office | Tax bills, payment plans, vehicle registration | Tax Office |
| Homestead Exemption Form 50-114 | Official Texas Comptroller PDF | Download PDF |
| Texas Comptroller — Collin County | State info, all taxing units, CAD directory | View Page |
09Collin County Appraisal District — FAQ 2026
Related Texas Appraisal District Guides
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