What is a property tax appeal?

A property tax appeal (also called a protest in Texas) is a formal process where you challenge your county appraiser's assessed value of your home. You file with the county Appraisal Review Board (ARB), present comparable-sales evidence that your home is overvalued, and the board issues a ruling.

When is the Texas property tax appeal deadline?

In Texas, the deadline to file a property tax protest is May 15 each year (or 30 days after your appraisal notice is mailed, whichever is later). The 2026 deadline has passed; the next protest window is April-May 2027.

How much can I save by appealing my property taxes?

Homeowners who appeal save an average of $774 per year in Texas, and you can protest again every year. Success rates range from 80-91% when you bring 3-5 comparable sales as evidence.

What's the difference between AppealMyTax and Ownwell?

AppealMyTax charges a flat $99, one time, for a complete personalized appeal packet you file yourself, or $199-$249 for our done-for-you filing service. You keep 100% of your savings every year. Ownwell keeps a 25-35% contingency on whatever you save and O'Connor keeps about half, meaning a $2,461 reduction costs you roughly $615-$1,230 every year forever. We charge $99 once and keep nothing.

What percent of homes in ZIP 75407 are overassessed?

14.8% of homes in Harker Heights ZIP 75407 (3,207 of 21,650 parcels) are assessed more than 10% above the typical per-square-foot value for the neighborhood, based on HCAD public records.

How do I protest my property taxes in Harker Heights ZIP 75407?

File a Notice of Protest with Collin CAD by May 15 each year. Bring 3-5 comparable sales from your immediate area to your ARB hearing. 2026 deadline has passed — next protest window is April-May 2027.

Collin County · Harker Heights

ZIP 75407 property tax overassessment report

14.8% of homes in Harker Heights ZIP 75407 (3,207 of 21,650 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $6,674,401.

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21,650

Homes in ZIP

3,207

Flagged as overassessed

14.8%

$96,799

Avg overage / home

$290,720

Typical value

~$156/sqft

Collin County · over-assessed homes overpay year-round

Next: Collin CAD 2027 values mail late March-April. Protest deadline: May 15, 2027.

Collin County guide →

Top 25 most overassessed homes in 75407

Addresses anonymized. Pulled directly from HCAD public records. Each home pays significantly more than what a comparable-size home in this ZIP typically pays.

Address	Sq ft	Year	Market val	Expected	Overage	% over	$/yr
2XXX FM 982	1,131	2007	$8,228,001	$176,436	$8,051,565	4563.4%	$164,252
5XX COUNTY ROAD 458	3,698	1980	$7,198,872	$576,888	$6,621,984	1147.9%	$135,088
1XXX COUNTY ROAD 456	2,204	1975	$4,482,166	$343,824	$4,138,342	1203.6%	$84,422
9XXX ROOSTER RDG	2,256	1999	$3,735,480	$351,936	$3,383,544	961.4%	$69,024
COUNTY ROAD 437	3,015	1994	$3,836,347	$470,340	$3,366,007	715.7%	$68,667
9XXX DOVE HILL TRL	2,836	1998	$3,196,325	$442,416	$2,753,909	622.5%	$56,180
3XXX HAWKEYE TRL	8,537	2013	$4,064,368	$1,331,772	$2,732,596	205.2%	$55,745
6XXX FM 1377	7,111	1976	$3,482,592	$1,109,316	$2,373,276	213.9%	$48,415
3XXX COUNTY ROAD 463	1,680	1981	$2,603,982	$262,080	$2,341,902	893.6%	$47,775
2XXX COUNTY ROAD 447	3,450	1982	$2,443,712	$538,200	$1,905,512	354.1%	$38,872
1XXXX COUNTY ROAD 491	1,617	1989	$2,086,806	$252,252	$1,834,554	727.3%	$37,425
4XXX COUNTY ROAD 494	2,239	2014	$2,147,963	$349,284	$1,798,679	515%	$36,693
1XXXX COUNTY ROAD 491	1,913	1980	$2,027,662	$298,428	$1,729,234	579.4%	$35,276
2XXX COUNTY ROAD 463	1,032	1965	$1,866,370	$160,992	$1,705,378	1059.3%	$34,790
2XXX COUNTY ROAD 463	3,211	2013	$2,136,482	$500,916	$1,635,566	326.5%	$33,366
4XXX COUNTY ROAD 444	4,084	1996	$2,270,108	$637,104	$1,633,004	256.3%	$33,313
4XXX FM 1377	3,531	2009	$2,160,810	$550,836	$1,609,974	292.3%	$32,843
8XXX COUNTY ROAD 392	1,457	1994	$1,831,473	$227,292	$1,604,181	705.8%	$32,725
3XXX FM 546	3,524	1999	$2,135,119	$549,744	$1,585,375	288.4%	$32,342
6XXX WILDERNESS TRL	3,098	1998	$2,065,412	$483,288	$1,582,124	327.4%	$32,275
9XXX COUNTY ROAD 466	2,833	2014	$1,995,797	$441,948	$1,553,849	351.6%	$31,699
3XXX E PRINCETON DR	2,340	1960	$1,864,926	$365,040	$1,499,886	410.9%	$30,598
5XXX E US HWY 380	1,196	1986	$1,652,118	$186,576	$1,465,542	785.5%	$29,897
5XXX FM 1377	4,288	2007	$2,107,176	$668,928	$1,438,248	215%	$29,340
8XXX MCKISSICK MEADOWS RD	4,405	2016	$2,087,658	$687,180	$1,400,478	203.8%	$28,570

Data: HCAD public records, Collin County, ZIP 75407. Addresses anonymized to protect privacy; full data is public record under Texas Public Information Act. Showing top 25 — there are likely more overassessed homes in this ZIP.

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