Collin County Property Tax Protest, Texas
Collin County is located in the northern Dallas-Fort Worth metroplex with McKinney as the county seat. Major cities include Plano (the largest city with approximately 287,600 residents), Frisco, McKinney, Allen, Prosper, and Celina. With a 2025 population of approximately 1.3 million, Collin County is Texas's sixth-most populous county and one of the fastest-growing in the nation. Property tax protests are particularly important here due to the county's effective tax rate of 1.66% and median annual property tax bill of $7,432, which is substantially above both the Texas state average of $4,111 and the national median of $2,400. The county's rapid growth and high home values (median $447,600) mean that mass appraisals frequently overvalue properties, creating significant savings opportunities for homeowners who file protests.
Notable cities: Plano, Frisco, McKinney, Allen, Prosper, Celina, Richardson
Median Home
$447,600
Tax Rate
1.66%
Annual Tax
$7,432
Population
1,297,179
On the typical Collin County home, valued near $447,600 at the county’s effective tax rate of 1.66%, an over-assessment of even 10% means you are overpaying year after year until you protest it. Here is how to find out if yours qualifies.
2026 Protest Deadline: May 15, 2026, or 30 days after the date your Notice of Appraised Value was mailed, whichever is later
This year's protest window has passed in most of Texas. Order now and we re-run your numbers free when the window reopens, so your evidence is ready the day your next notice lands.
The 2026 protest deadline for real property is May 15, 2026, or 30 days after the mailing date printed on your Notice of Appraised Value, whichever is later. Notices are typically mailed in April. If your notice was mailed after April 15, you have 30 days from that mailing date to file. Filing online immediately upon receiving your notice is strongly recommended as CCAD experiences very high protest volume and early filers receive more favorable hearing schedules.
Want the full walkthrough? Read our Collin County Property Tax Protest Guide with evidence strategies and hearing tips.
See if your Collin County home is over-assessed
Free analysis in 30 seconds. If the numbers support a protest, your complete evidence packet is $49.

How Collin County Assesses Property
Assessed by: Collin Central Appraisal District (CCAD)
Assessment cycle: annual
Notices typically mailed: April
Under Texas law, the Collin Central Appraisal District appraises all properties at 100% of market value as of January 1 each year. This means there is no reduction between market value and assessed value. If your home's market value is $450,000, at Texas's 100% assessment ratio your assessed value would be $450,000, resulting in approximately $7,470 in annual taxes at the county's effective rate of 1.66% (before exemptions). This differs from states that assess at a lower percentage of market value.
The Protest Process
Appeals are heard by the Appraisal Review Board (ARB). After filing your protest, CCAD will confirm receipt and may offer an informal review with appraisal staff before scheduling a formal ARB hearing. Many Collin County protests are resolved during informal reviews. Formal ARB hearings typically last 10-15 minutes, during which you present your evidence and the appraisal district defends their valuation.
Review your Notice of Appraised Value when it arrives in April and compare the appraised value to recent comparable sales in your neighborhood and what your home would realistically sell for on the open market
File your protest by May 15, 2026 (or within 30 days of your notice mailing date, whichever is later) using CCAD's online portal at onlineportal.collincad.org, by mail, or in person. Online filing is strongly recommended for faster processing
Gather evidence to support your case including recent comparable sales (sold within 6-12 months, similar size/condition/location), photos of property damage or deferred maintenance, repair estimates, and documentation of any incorrect property data on your appraisal notice
Attend the informal review offered by CCAD appraisal staff, which can be conducted by phone, online, or in person. Many protests are resolved at this stage through negotiation before a formal hearing is required
If the informal review does not produce a satisfactory result, proceed to a formal hearing before the Appraisal Review Board (ARB). Present your evidence professionally and be prepared to explain why your property's value should be reduced
If you disagree with the ARB decision, you may appeal to the State Office of Administrative Hearings (SOAH) for binding arbitration, file a lawsuit in district court, or pursue other remedies allowed under Texas Property Tax Code
Required form: Notice of Protest (Form 50-132) or online filing through CCAD e-Services portal
Filing Methods
Evidence to Bring
Collin County Assessor Contact
Collin Central Appraisal District (CCAD)
Phone: (469) 742-9200 or toll-free (866) 467-1110
Address: 250 Eldorado Pkwy, McKinney, TX 75069
Website: https://collincad.org
Online Portal: https://onlineportal.collincad.org/
Hours: Monday-Friday, 8:00 AM to 4:00 PM Central Time
Tax Exemptions in Collin County
General Residence Homestead Exemption
$140,000 off school district taxes (increased from $100,000 in 2026)Reduces the taxable value of your primary residence for school district taxes
Over-65 or Disabled Person Exemption
Additional $60,000 off school district taxes, plus at least $3,000 from county and other taxing units. School district taxes are frozen at current level.Additional exemption for homeowners age 65 or older, or who are disabled, plus a school tax ceiling (freeze) that caps school district taxes at the current level
Disabled Veteran Exemption
10-29% disability: $5,000; 30-49%: $7,500; 50-69%: $10,000; 70-99%: $12,000; 100% disabled: full exemption from all property taxesPartial or total exemption based on VA disability rating percentage
Surviving Spouse Exemptions
100% of property value exemptionExemptions for surviving spouses of armed services members killed in action or first responders killed in the line of duty
Collin County Protest Statistics
Success Rate
75%
% Who Protest
17-24%
Collin County Protest Packet · $49
Comparable sales evidence, county-specific filing guide, and professional cover letter. Enter your address to get started.
Frequently Asked Questions
What is the deadline to protest my property taxes in Collin County for 2026?
How do I file a property tax protest online with Collin County?
What is the homestead exemption worth in Collin County?
What evidence do I need for a successful Collin County property tax protest?
What happens at a Collin County ARB hearing?
How much can I save by protesting my property taxes in Collin County?
Is there any risk to protesting my Collin County property taxes?
Can I protest my Collin County property taxes if I just bought my home?
Official Resources
Collin Central Appraisal District Official Website →
Official CCAD website for property searches, exemption applications, appraisal notices, and protest information.
CCAD Online Protest Portal →
File your property tax protest online, upload evidence, and track your case status through CCAD's taxpayer portal.
Texas Comptroller Property Tax Information →
Statewide property tax resources, exemption information, protest procedures, and taxpayer rights from the Texas Comptroller.
Collin County Tax Assessor-Collector →
Pay property taxes, look up tax account information, and access payment options through the Collin County Tax Office.
For state-wide protest information including Texas's assessment ratio and deadlines, see our Texas Property Tax Protest Guide →
Considering professional help with your protest? Compare pricing, coverage, and pros/cons in our Best Property Tax Protest Services (2026) or browse side-by-side service comparisons →
More Texas Counties
Sources: https://collincad.org/2026-property-tax-protest-and-appeal-procedures/ | https://collincad.org/general-information-location-hours-and-telephone-numbers/ | https://propertytaxrates.org/counties/texas/collin-county/ | https://comptroller.texas.gov/taxes/property-tax/county-directory/collin.php | https://www.ownwell.com/blog/collin-county-homestead-exemption | https://www.census.gov/quickfacts/fact/table/collincountytexas
Last verified: 2026-07-24