Commercial property tax protests in Collin County
Figures as of November 9, 2026, from the Collin Central Appraisal District protest export, 2022 to 2026. Updated each year after the protest season. How we counted
- 86% to 90% of Collin protests on $5M+ commercial property have ended lower every year since 2022
- Collin’s 2026 reductions took $6.56 billion off the noticed value of $5M+ commercial property
- 94% of Collin protests on commercial property noticed at $50M and up ended lower, 2022 to 2026
In Collin County, owners protest the value the Collin Central Appraisal District sets for their property by May 15 or 30 days after the notice is mailed, whichever is later. In 2026, 90% of protests on commercial property noticed at $5 million or more ended in a lower value (2,312 of 2,573), with a median cut of 8.4% among those reductions.
Sources: HB 2228 (2017); Texas Comptroller, protests.
Half of the 2,312 Collin County reductions on $5M+ commercial property in 2026 took off between 4.8% and 14.1%
Source: Collin Central Appraisal District protest export, 2026. Commercial property noticed at $5 million or more. Paradox Property Tax, paradoxpropertytax.com/report
One dot per protest. The block on the left holds the 261 that ended no lower; every other dot sits at the share of its noticed value that came off, from 0% to 41% and up.
The shape is the year’s protests: the block on the left ended no lower, and the rest spread out by the share of the noticed value that came off, from 0% to 41% and up. The counts are in the table below.
Where did your protest land?
Type the value on your notice and the value you ended with, from the settlement or the board’s order.
Example
9.7% off
A $12.4M notice settled at $11.2M is 9.7% off, deeper than about 57 in 100 of 2026’s Collin reductions on $5M+ commercial property. Yours appears here and on the chart.
Your numbers stay in this browser. Nothing is sent.
Download the chart’s numbers (CSV)
Counts behind the chart (43 rows)
| Outcome | Protests |
|---|---|
| Ended no lower | 261 |
| Lower by under 1% | 56 |
| 1% to under 2% | 99 |
| 2% to under 3% | 131 |
| 3% to under 4% | 165 |
| 4% to under 5% | 149 |
| 5% to under 6% | 170 |
| 6% to under 7% | 162 |
| 7% to under 8% | 161 |
| 8% to under 9% | 131 |
| 9% to under 10% | 119 |
| 10% to under 11% | 110 |
| 11% to under 12% | 104 |
| 12% to under 13% | 99 |
| 13% to under 14% | 69 |
| 14% to under 15% | 111 |
| 15% to under 16% | 41 |
| 16% to under 17% | 47 |
| 17% to under 18% | 52 |
| 18% to under 19% | 32 |
| 19% to under 20% | 41 |
| 20% to under 21% | 39 |
| 21% to under 22% | 22 |
| 22% to under 23% | 19 |
| 23% to under 24% | 18 |
| 24% to under 25% | 9 |
| 25% to under 26% | 16 |
| 26% to under 27% | 20 |
| 27% to under 28% | 19 |
| 28% to under 29% | 12 |
| 29% to under 30% | 9 |
| 30% to under 31% | 11 |
| 31% to under 32% | 11 |
| 32% to under 33% | 8 |
| 33% to under 34% | 6 |
| 34% to under 35% | 6 |
| 35% to under 36% | 8 |
| 36% to under 37% | 3 |
| 37% to under 38% | 3 |
| 38% to under 39% | 4 |
| 39% to under 40% | 2 |
| 40% to under 41% | 3 |
| 41% and up | 15 |
What changes for 2027?
The 20% limit on yearly appraisal increases for non-homestead real property expires December 31, 2026, unless the Legislature acts in 2027. In 2026 it covered property valued at $5,320,000 or less. A bill to extend it died in committee.
Sources: SB 2, 88th Legislature, 2nd called session; Texas Comptroller, valuing property; Texas Comptroller, January 2026; SB 322 history (2025).
Unequal appraisal protests stay as they were: the bill to bar market-value evidence in them did not pass.
Source: SB 2063 history (2025).
When does the notice come?
In 2026 the district mailed notices on April 15. The 30-day count runs from the mailing.
Sources: Collin Central Appraisal District, 2026 notices; Texas Comptroller, protests.
When and how do you file?
The deadline is May 15 or 30 days after the notice is mailed, whichever is later, and a deadline on a weekend or holiday moves to the next business day. For 2027 that makes Monday, May 17, by our count; the date on your notice governs.
Sources: HB 2228 (2017); Texas Comptroller, protests; Texas Comptroller, deadlines calendar.
Owners can file online through the district’s owner portal.
Source: Collin Central Appraisal District, owner portal.
Someone paid to represent an owner must be a property tax consultant registered with the Texas Department of Licensing and Regulation, or a Texas attorney or CPA, and is named on Comptroller form 50-162.
Sources: TDLR, property tax consultants; Comptroller form 50-162.
The roll files we hold for this county don’t mark tax-exempt property, so the share that protested isn’t shown.
What evidence can you ask the district for?
At least 14 days before the hearing, the district must tell the owner they may ask for “the data, schedules, formulas, and all other information” it will use. What was asked for and not given “may not be used or offered in any form as evidence.”
Source: SB 2 (2019).
On an unequal appraisal protest, the owner wins unless the district shows the value “is equal to or less than the median appraised value of a reasonable number of comparable properties appropriately adjusted.”
Source: Tax Code §41.43(b)(3), bill text.
How does a protest end?
A protest ends in a settlement, a panel’s order, a withdrawal or a dismissal. The district’s hearings run from mid-May to early July, and its roll is certified by July 25. Since September 1, 2025, review board decisions come by written order, and a dismissal must say why.
Sources: Collin Central Appraisal District, protest and certification cycle; HB 1533 (2025).
Where Collin County’s 2026 protests landed is the chart at the top of this page.
What if you disagree with the order?
| Route | For | When |
|---|---|---|
| Binding arbitration | Property the board valued at $5 million or less. Most of this report’s buildings are above that line. | Within 60 days Sources: SB 731 (2017); Texas Comptroller, binding arbitration. |
| State Office of Administrative Hearings | Non-industrial property the board valued above $1,000,000 | Notice within 30 days of the order, and a $1,500 deposit within 90 |
| District court | Any property | A petition within 60 days of the final order, with tax on the undisputed value paid first Sources: Tax Code §42.21, HB 986; §42.08, HB 585. |
86% to 90% of Collin County’s $5M+ protests have ended lower every year since 2022
This page counts the 2,573 protests on commercial property noticed at $5 million or more in 2026. Their 2026 reductions took $6.56 billion off noticed value, about $112 million in tax at a 1.70% combined rate (Collin County, Plano, Plano ISD and Collin College, 2026), used here as an illustration.
| Year | Cut among reductions | Ended lower |
|---|---|---|
| 20262,573 protests | 4.8%8.4%14.1%20.7% |
90% ended lower2,312 of 2,573 |
| 20252,395 protests | 4.5%8.5%14.7%22.3% |
87% ended lower2,087 of 2,395 |
| 20242,238 protests | 5.9%9.6%16.5%24.5% |
90% ended lower2,004 of 2,238 |
| 20232,033 protests | 6.5%10.4%17.5%25.6% |
87% ended lower1,770 of 2,033 |
| 20221,832 protests | 5.2%9.6%17.9%25.0% |
86% ended lower1,576 of 1,832 |
Source: Collin Central Appraisal District protest export. Paradox Property Tax, paradoxpropertytax.com/report
Each bar spans the middle half of that year’s reductions, and the dark tick is the median. The thin line runs on to the cut that nine in ten stayed under. The roll files we hold for this county don’t mark tax-exempt property, so the share that protested isn’t shown.
Buildings noticed at $50M and up ended lower 94% of the time
| Noticed value | Protests | Ended lower | Median cut |
|---|---|---|---|
| $5M to $10M | 4,023 | 83% | 8.1% |
| $10M to $25M | 3,531 | 89% | 9.4% |
| $25M to $50M | 1,667 | 92% | 10.3% |
| $50M and up | 1,850 | 94% | 11.0% |
Collin County, 2022 to 2026 together.
Apartments ended lower in 91% of protests, commercial buildings in 87%
| Property type | Protests | Ended lower | Median cut |
|---|---|---|---|
| Apartments | 2,651 | 91% | 12.7% |
| Commercial | 8,145 | 87% | 8.4% |
| Industrial | 275 | 81% | 8.3% |
Collin County, 2022 to 2026 together.
Using these numbers
A sentence you can quote
In Collin County, 90% of 2026 protests on commercial property noticed at $5 million or more ended in a lower value (2,312 of 2,573), according to Paradox Property Tax’s count of the Collin Central Appraisal District protest export.
How to cite this page
Paradox Property Tax. Commercial property tax protests in Collin County, from the DFW Commercial Property Tax Protest Report, 2026 edition. November 9, 2026. paradoxpropertytax.com/report/collin/
Counted from the Collin Central Appraisal District’s protest export for 2022 to 2026, joined to its yearly appraisal exports: one protest per property per year, on apartments, commercial and industrial property noticed at $5 million or more. A protest ended lower when the final value came out below the beginning (noticed) value; withdrawn and dismissed protests count as not reduced. The full method
Download the data
This county’s years: paradox-protests-collin-by-year.csv. Its latest year, cut by cut: paradox-protest-cuts-collin-2026.csv. All four counties: report-2026.csv. The dot chart at the top downloads as a picture too.
Dallas, Tarrant and Denton counties have their own pages, and all four sit side by side in the full report, each on its own years.
Want a second read on a building?
Send us a property and we read the record: the notice, the district’s evidence and the year’s results. Then we tell you whether there’s a case. Some years, for some properties, there isn’t, and we’ll say so.