Collin County property tax protest check
Collin Central Appraisal District appraised 345,101 single-family homes on its 2026 certified roll. We could compare 337,581 of them with similar homes nearby, and 145,007 of those (43.0%) look high.
This free, independent check uses the appraisal district's own values, not sale prices. Click your home on the map for a report that compares it with 5 similar homes nearby, and see the Playbook if you decide to protest on your own.
Check your Collin County home on the map →
What Collin County's 2026 certified roll shows
Added up, these homes are appraised $6.3 billion above the typical value of the similar homes they were compared with.
We could not find 5 similar homes for the other 7,520 homes on the roll (an unusual size or age, or a rural home), so they are not part of the percentage.
The median change in appraised value from last year was -0.3%.
Neighborhoods where the most homes look high
- Around Eastwick Ln: 63% of 64 homes we could compare look high
- Around Big Bend Blvd: 62% of 60 homes we could compare look high
- Around Wood Lake Dr: 60% of 87 homes we could compare look high
- Around Wainsborough Ln: 60% of 74 homes we could compare look high
- Around Knollwood Dr: 58% of 83 homes we could compare look high
These counts cover single-family homes only. Every county has some homes above similar homes and some below, so this is not proof the whole county is over-appraised.
Where Collin County's homes are
No single city has most of the 253,649 homes with a homestead exemption. The largest counts are in Plano (53,954), McKinney (49,424), Frisco (25,886) and Allen (23,970).
By ZIP code, the most homestead homes are in 75035 (21,327), 75071 (21,087) and 75002 (16,365). The roll has homes in 40 ZIP codes in all.
How the largest cities compare
| City | Homes we could compare | Share that looks high | Median appraised value |
|---|---|---|---|
| Plano | 70,673 | 45.2% | $498,162 |
| McKinney | 68,236 | 42.1% | $477,290 |
| Frisco | 33,917 | 42.6% | $636,201 |
| Allen | 30,988 | 43.2% | $494,000 |
| Wylie | 17,274 | 43.6% | $401,428 |
| Celina | 14,625 | 41.4% | $541,865 |
Each row counts the single-family homes with that city in their address. The county-wide share is 43.0%.
Collin County questions
How many Collin County homes look high on the 2026 roll?
145,007 of the 337,581 homes we could compare, or 43.0%. Each is appraised more than 2% above similar homes nearby on Collin Central Appraisal District's 2026 certified roll.
What is the median appraised value of a Collin County homestead?
$522,348 on the 2026 certified roll. That is the middle value of the 253,649 single-family homes with a homestead exemption.
When can I protest my Collin County appraisal?
The 2026 protest season is closed. The next one starts when 2027 preliminary notices go out, usually in April or May. The deadline is generally May 15, or 30 days after your notice was delivered if that is later. Go by the date printed on your own notice. The appraisal district takes protests online at onlineportal.collincad.org.
Which Collin County city has the largest share of homes that look high?
Of the 6 largest cities, Plano is highest: 45.2% of its 70,673 homes we could compare look high. Celina is lowest at 41.4% of 14,625. The county as a whole is at 43.0%.
Collin Central Appraisal District
The district's website is collincad.org. You can look up any account at collincad.org. To protest, use Collin Central Appraisal District's protest page. What notice and certified values mean
The numbers on this page come from the appraisal district's 2026 certified roll. We got it through a free open-data feed, and our copy was last updated on September 2, 2026. The map also has the 2025 certified roll for Collin County, and the year buttons on the map switch between them.
What happened when Collin County owners protested
In 2024, the appraisal district received 85,274 protests. 76% of informal reviews ended with a lower value, and so did 52% of formal hearings. Together they took $1.2 billion off appraised values. Paid agents or firms filed about 83% of the protests, and owners can also file on their own for free.
Source: Texas Comptroller Appraisal District Operations Survey (2024), with county-wide figures reported by the appraisal district.
Nearby counties
These counties border Collin County:
More Dallas-Fort Worth counties:
See all Texas counties we cover →
The fine print
Not legal advice. This page is an educational check built on public appraisal data. It is not affiliated with the Collin Central Appraisal District or the State of Texas, and it does not file anything on your behalf — you are responsible for your own filings and deadlines. The regular spring protest window is closed on the 2026 certified roll. See the full Disclaimer & Terms of Use.
Built by an independent citizen developer. Not affiliated with the Collin Central Appraisal District.