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 78621 are overassessed?

13.4% of homes in Killeen ZIP 78621 (434 of 3,238 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 78621?

File a Notice of Protest with TCAD 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.

Travis County · Killeen

ZIP 78621 property tax overassessment report

13.4% of homes in Killeen ZIP 78621 (434 of 3,238 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $1,074,668.

Lock in 2027 prep — $99/yr →Check your address (free)

3,238

Homes in ZIP

434

Flagged as overassessed

13.4%

$115,171

Avg overage / home

$302,119

Typical value

~$359/sqft

Travis County · over-assessed homes overpay year-round

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

Travis County guide →

Top 25 most overassessed homes in 78621

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
6XX CR 468	1,216	—	$2,289,545	$436,544	$1,853,001	424.5%	$33,725
3XX CR 465	1,360	2003	$2,109,892	$488,240	$1,621,652	332.1%	$29,514
1XXX SPUR 619	1,404	2023	$1,977,099	$504,036	$1,473,063	292.3%	$26,810
4XX FM 619 SPUR	1,609	1996	$1,796,480	$577,631	$1,218,849	211%	$22,183
3XXX CR 464	3,004	1930	$1,938,799	$1,078,436	$860,363	79.8%	$15,659
1XXX COUNTY ROAD 466	1,472	1961	$1,291,678	$528,448	$763,230	144.4%	$13,891
3XX COUNTY ROAD 462	2,560	—	$1,679,389	$919,040	$760,349	82.7%	$13,838
1XXX CR 464	1,336	1920	$1,148,686	$479,624	$669,062	139.5%	$12,177
1XXX FM 619 SPUR	1,104	—	$1,024,503	$396,336	$628,167	158.5%	$11,433
3XXX CR 480	2,916	—	$1,622,687	$1,046,844	$575,843	55%	$10,480
2XXXX F M RD 969	960	1998	$786,775	$344,640	$442,135	128.3%	$8,047
2XXXX F M RD 969	1,200	1950	$838,771	$430,800	$407,971	94.7%	$7,425
3XXX CR 460	1,232	—	$838,765	$442,288	$396,477	89.6%	$7,216
6XX CR 463	1,916	1985	$1,074,419	$687,844	$386,575	56.2%	$7,036
2XXXX F M RD 969	2,413	1986	$1,238,870	$866,267	$372,603	43%	$6,781
6XX FM 619 SPUR	4,884	1994	$2,114,520	$1,753,356	$361,164	20.6%	$6,573
1XXX CR 490	1,981	2024	$1,040,116	$711,179	$328,937	46.3%	$5,987
5XX CR 466	2,281	2021	$1,131,902	$818,879	$313,023	38.2%	$5,697
4XXX CR 467	1,011	1930	$669,919	$362,949	$306,970	84.6%	$5,587
7XX CR 466	1,050	2017	$672,829	$376,950	$295,879	78.5%	$5,385
6XX WEBBERWOOD WAY S	1,125	2015	$694,404	$403,875	$290,529	71.9%	$5,288
2XXX CR 467	2,068	2017	$1,003,394	$742,412	$260,982	35.2%	$4,750
1XXXX SKOG RD	560	1965	$461,539	$201,040	$260,499	129.6%	$4,741
4XXX CR 480	1,216	—	$679,057	$436,544	$242,513	55.6%	$4,414
3XXX CR 460	640	2017	$471,361	$229,760	$241,601	105.2%	$4,397

Data: HCAD public records, Travis County, ZIP 78621. 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.

Is yours one of them?

The 2026 protest deadline has passed, but TravisCounty will publish fresh 2027 values next April. Lock in $99/yr monitoring now and we'll auto-build your iFile-ready packet the moment your new value drops.

Start 2027 prep — $99/yr →

Cancel anytime · Auto-files your protest packet for 2027, 2028, 2029…