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 75409 are overassessed?

14.8% of homes in Killeen ZIP 75409 (1,949 of 13,163 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 Killeen ZIP 75409?

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 · Killeen

ZIP 75409 property tax overassessment report

14.8% of homes in Killeen ZIP 75409 (1,949 of 13,163 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $8,262,577.

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13,163

Homes in ZIP

1,949

Flagged as overassessed

14.8%

$197,181

Avg overage / home

$380,827

Typical value

~$183/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 75409

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 PRIVATE ROAD 5124	2,208	1990	$14,213,616	$404,064	$13,809,552	3417.7%	$281,715
5XXX FM 2862	1,280	1965	$12,117,949	$234,240	$11,883,709	5073.3%	$242,428
2XXX COWAN RD	768	1941	$7,700,395	$140,544	$7,559,851	5379%	$154,221
3XXX E OUTER LOOP RD	1,854	1975	$7,411,049	$339,282	$7,071,767	2084.3%	$144,264
6XXX COUNTY ROAD 277	1,662	1955	$7,311,000	$304,146	$7,006,854	2303.8%	$142,940
5XXX SAM RAYBURN HWY	925	1955	$6,230,863	$169,275	$6,061,588	3580.9%	$123,656
FM 545	1,461	1956	$5,942,363	$267,363	$5,675,000	2122.6%	$115,770
4XXX SAM RAYBURN HWY	2,256	1954	$5,363,554	$412,848	$4,950,706	1199.2%	$100,994
7XXX COUNTY ROAD 286	2,792	1977	$5,218,590	$510,936	$4,707,654	921.4%	$96,036
1XXXX COUNTY ROAD 290	3,480	1998	$5,148,588	$636,840	$4,511,748	708.5%	$92,040
1XXX COUNTY ROAD 287	1,158	1959	$4,186,572	$211,914	$3,974,658	1875.6%	$81,083
4XXX COUNTY ROAD 1220	1,339	1947	$4,126,934	$245,037	$3,881,897	1584.2%	$79,191
5XXX FM 2862	1,461	1957	$4,045,543	$267,363	$3,778,180	1413.1%	$77,075
3XXX FM 2862	1,400	1965	$3,992,695	$256,200	$3,736,495	1458.4%	$76,224
9XXX COUNTY ROAD 579	1,432	1955	$3,987,172	$262,056	$3,725,116	1421.5%	$75,992
3XXX SAM RAYBURN HWY	1,000	2003	$3,639,391	$183,000	$3,456,391	1888.7%	$70,510
9XXX COUNTY ROAD 474	6,001	2003	$4,427,794	$1,098,183	$3,329,611	303.2%	$67,924
1XXXX COUNTY ROAD 525	5,446	2009	$4,287,429	$996,618	$3,290,811	330.2%	$67,133
8XXX COUNTY ROAD 513	2,221	1975	$3,672,321	$406,443	$3,265,878	803.5%	$66,624
8XXX COUNTY ROAD 285	2,621	1999	$3,725,554	$479,643	$3,245,911	676.7%	$66,217
1XXXX COUNTY ROAD 290	2,293	2018	$3,428,492	$419,619	$3,008,873	717%	$61,381
7XXX COUNTY ROAD 476	1,113	1966	$3,205,480	$203,679	$3,001,801	1473.8%	$61,237
1XXXX COUNTY ROAD 577	900	1935	$3,151,435	$164,700	$2,986,735	1813.4%	$60,929
3XX E THIRD ST	3,950	1950	$3,659,302	$722,850	$2,936,452	406.2%	$59,904
8XXX COUNTY ROAD 513	5,427	2003	$3,845,457	$993,141	$2,852,316	287.2%	$58,187

Data: HCAD public records, Collin County, ZIP 75409. 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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