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 78270 are overassessed?

14.9% of homes in San Antonio ZIP 78270 (40 of 269 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 San Antonio ZIP 78270?

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 · San Antonio

ZIP 78270 property tax overassessment report

14.9% of homes in San Antonio ZIP 78270 (40 of 269 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $31,180.

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269

Homes in ZIP

Flagged as overassessed

14.9%

$36,256

Avg overage / home

$253,341

Typical value

~$150/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 78270

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
2XXXX OLD FOSSIL RD	5,563	2003	$1,411,770	$834,450	$577,320	69.2%	$11,373
2XXXX EAGLE RIDGE CT	3,411	2004	$740,180	$511,650	$228,530	44.7%	$4,502
2XXXX LOOKOUT BLF	3,028	2002	$660,000	$454,200	$205,800	45.3%	$4,054
3XX ROSEHEART	2,406	2007	$560,180	$360,900	$199,280	55.2%	$3,926
1XXXX CULEBRA RD #121	2,500	2019	$573,000	$375,000	$198,000	52.8%	$3,901
DEERFIELD DR	2,418	2023	$535,140	$362,700	$172,440	47.5%	$3,397
1XXX BELCLAIRE	2,504	1998	$546,720	$375,600	$171,120	45.6%	$3,371
1XXXX ROBIN RDG	3,194	1987	$630,000	$479,100	$150,900	31.5%	$2,973
1XXXX BEECH CRK	2,542	2002	$529,000	$381,300	$147,700	38.7%	$2,910
1XXXX CALLE CIERRA	2,841	2002	$573,700	$426,150	$147,550	34.6%	$2,907
1XXX SANDRINGHAM	2,729	2000	$551,000	$409,350	$141,650	34.6%	$2,791
4XX E FRENCH PL	1,050	1925	$296,370	$157,500	$138,870	88.2%	$2,736
1XX GARRAPATA LN	2,322	1970	$486,220	$348,300	$137,920	39.6%	$2,717
1XXX CHARLISAS WAY	2,268	2001	$472,340	$340,200	$132,140	38.8%	$2,603
2XXX SHADOW CLIFF ST	1,937	1975	$422,270	$290,550	$131,720	45.3%	$2,595
2XX RIO SECO ST	2,810	1977	$538,000	$421,500	$116,500	27.6%	$2,295
2XXX BLUFFRIDGE ST	1,973	1979	$405,410	$295,950	$109,460	37%	$2,156
2XXX PIPESTONE DR	1,807	1978	$377,780	$271,050	$106,730	39.4%	$2,103
1XXX ADOBE RUN	2,283	1992	$449,000	$342,450	$106,550	31.1%	$2,099
1XXXX BROOK HOLLOW BLVD	2,043	1969	$412,790	$306,450	$106,340	34.7%	$2,095
9XX VISTA PLACERA	2,828	2017	$529,990	$424,200	$105,790	24.9%	$2,084
1XXX MOUNTJOY ST	1,944	1996	$395,000	$291,600	$103,400	35.5%	$2,037
2XXX BLOSSOM DR	2,145	1950	$419,680	$321,750	$97,930	30.4%	$1,929
1XXXX COUNTRY LEDGE	2,775	1978	$512,940	$416,250	$96,690	23.2%	$1,905
1XXXX TURTLE ROCK ST	2,128	1972	$413,520	$319,200	$94,320	29.5%	$1,858

Data: HCAD public records, Bexar County, ZIP 78270. 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 BexarCounty 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.

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