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 78257 are overassessed?

24.4% of homes in Harker Heights ZIP 78257 (704 of 2,884 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 78257?

File a Notice of Protest with BCAD 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.

Bexar County · Harker Heights

ZIP 78257 property tax overassessment report

24.4% of homes in Harker Heights ZIP 78257 (704 of 2,884 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $2,355,426.

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2,884

Homes in ZIP

704

Flagged as overassessed

24.4%

$155,617

Avg overage / home

$820,747

Typical value

~$226/sqft

Bexar County · over-assessed homes overpay year-round

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

Bexar County guide →

Top 25 most overassessed homes in 78257

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
1XXXX LA CANTERA PKWY	8,472	2012	$7,320,000	$1,914,672	$5,405,328	282.3%	$106,485
1X DAVENPORT LN	7,925	1995	$5,400,000	$1,791,050	$3,608,950	201.5%	$71,096
1X CRESCENT PARK	10,106	2007	$5,500,000	$2,283,956	$3,216,044	140.8%	$63,356
5X VINEYARD DR	13,081	2018	$6,110,000	$2,956,306	$3,153,694	106.7%	$62,128
1 ADMIRALS WAY	12,574	1997	$5,390,000	$2,841,724	$2,548,276	89.7%	$50,201
6XXX SIERRA AVILA	7,435	2023	$4,178,760	$1,680,310	$2,498,450	148.7%	$49,219
1X DUXBURY PARK	10,078	2009	$4,650,000	$2,277,628	$2,372,372	104.2%	$46,736
1X CRESCENT PARK	7,496	2006	$3,859,400	$1,694,096	$2,165,304	127.8%	$42,656
2XXXX PRIVADA AVILA	6,442	2020	$3,526,900	$1,455,892	$2,071,008	142.3%	$40,799
1X GRAND TER	5,825	2015	$3,293,150	$1,316,450	$1,976,700	150.2%	$38,941
5 CRESCENT BLF	7,127	2010	$3,573,690	$1,610,702	$1,962,988	121.9%	$38,671
5X HIGH CRES	8,035	1998	$3,690,420	$1,815,910	$1,874,510	103.2%	$36,928
2X CRESCENT LEDGE	9,474	2006	$3,981,470	$2,141,124	$1,840,346	86%	$36,255
6X HIGH CRES	13,087	2000	$4,742,590	$2,957,662	$1,784,928	60.3%	$35,163
4X VINEYARD DR	8,701	1999	$3,728,325	$1,966,426	$1,761,899	89.6%	$34,709
2XXXX PRIVADA AVILA	5,979	2015	$3,095,000	$1,351,254	$1,743,746	129%	$34,352
5X MAJESTIC WAY	8,913	2021	$3,713,000	$2,014,338	$1,698,662	84.3%	$33,464
5XXX CAMINO ALTURAS	9,483	2020	$3,828,470	$2,143,158	$1,685,312	78.6%	$33,201
2X VINEYARD DR	6,629	2023	$3,104,420	$1,498,154	$1,606,266	107.2%	$31,643
2XXXX RESERVA AVILA	7,137	2022	$3,202,330	$1,612,962	$1,589,368	98.5%	$31,311
2XXXX PRIVADA AVILA	7,026	2016	$3,174,270	$1,587,876	$1,586,394	99.9%	$31,252
2X VINEYARD DR	6,705	2009	$3,068,000	$1,515,330	$1,552,670	102.5%	$30,588
1X GRAND TER	6,054	2015	$2,906,350	$1,368,204	$1,538,146	112.4%	$30,301
2XXXX RESERVA AVILA	6,326	2018	$2,957,270	$1,429,676	$1,527,594	106.8%	$30,094
4 MONTIVILLERS	8,323	2016	$3,338,590	$1,880,998	$1,457,592	77.5%	$28,715

Data: HCAD public records, Bexar County, ZIP 78257. 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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