Collin Central Appraisal District
Local Appraisal District
Property owners select O’Connor to represent them in property tax protests more often than any other firm because:
- O’Connor’s aggressive approach is well aligned with the property owners’ interest. We pay the fees and costs regardless of the level of appeal. Many competitors require the property owner to pay the binding arbitration deposit or costs related to judicial appeal such as legal fees, expert witness fees and court costs. We will not ask you to pay any of the costs or fees related to your property tax protest.
- O’Connor has built relationships with appraisal district staff during the last 30 years while conducting literally millions of property tax appeals.
- O’Connor develops an extensive file for each property tax protest, often 50 to 100 pages of evidence regarding both market value and unequal appraisal. Our proprietary software tailors the evidence to a format the appraisal district prefers.
- Our experience has allowed us to compile sales and unequal appraisal data consistent with the format expected by the Collin CAD and the Collin County ARB.
Collin Central Appraisal District (CAD) commercial and residential property owners have claimed property tax savings from formal and informal hearings. The results of these are displayed below:
- Total property tax savings for Collin County owners in 2023 were $270 million, up from $226 million in 2022. In 2023, 115,530 accounts were protested by Collin County property owners.
- There was a 62% success rate for informal property tax protests and a 52% success rate for ARB protests in Collin County. Accounts valued by Collin CAD saved $18 million in property taxes in the informal stage in the appeal process. The ARB protests resulted in $15 million savings for the property owners.
- Protests were filed by 20% of Collin County property owners in 2021, with 27% of property owners fighting for a reduction by 2023.
- Collin County owners recorded tax savings of $48 million in 2022 as a result of informal hearings. In 2023, this sum increased with $61 million saved via informal appeals.
Save With O’Connor
1,148
Average HCAD Tax Savings

Average Property Tax Savings from Protesting (Informal + Formal)
Residential Property
333
Commercial Property
8,532
Disclaimer: O’Connor is a property tax consultant and is not affiliated with any appraisal district. Data for graphs provided by Texas comptroller.
Single Family
Commercial / Other
Total
Disclaimer: O’Connor is a property tax consultant and is not affiliated with any appraisal district. Data for graphs provided by Texas comptroller.
Single Family
Commercial / Other
Total
2023 County Appraisal District Statistics
Select
Year
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County:
Collin -
Street Address:
250 Eldorado Pkwy. McKinney, TX 75069-8023 -
Mailing Address:
250 Eldorado Pkwy. McKinney, TX 75069-8023 -
Phone:
469-742-9200
Major Cities:
Allen, Anna, Blue Ridge, Celina, Farmersville, Lavon, Lowry Crossing, Lucas, McKinney, Melissa, Murphy, Nevada, Parker, Princeton, Weston
Collin County Texas totals 886 square miles, with a 2020 population of about 1,064,465. Adjacent counties include Grayson, Fannin, Hunt, Rockwall, Dallas, Denton. The total market value of real property and personal property in Collin County in 2020 was $189,000,000,000. Collin County 2020 property taxes are estimated to total $3,000,000,000 million based on an effective tax rate of 2.4% including homestead exemptions. Collin County property owners protested the noticed value for 54,340 houses and 27,080 commercial and BPP properties. Collin County Appraisal Review Board appeals were successful for 48% of the owners. Property owner property tax protests in Collin County results in savings of $3,533,480,000 in 2020, or $43,403 per account protested. The 2020 budget for the Collin was $22,760,000 including 140 employees.
Collin Property Tax Values
