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 78642 are overassessed?

20% of homes in Temple ZIP 78642 (2,543 of 12,711 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 Temple ZIP 78642?

File a Notice of Protest with WCAD 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.

Williamson County · Temple

ZIP 78642 property tax overassessment report

20% of homes in Temple ZIP 78642 (2,543 of 12,711 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $7,916,633.

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12,711

Homes in ZIP

2,543

Flagged as overassessed

20%

$144,795

Avg overage / home

$565,069

Typical value

~$221/sqft

Williamson County · over-assessed homes overpay year-round

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

Williamson County guide →

Top 25 most overassessed homes in 78642

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
4XX JENKINS DAVIS	1,892	1973	$14,757,468	$418,132	$14,339,336	3429.4%	$285,353
5XXX RR 1869	6,236	1885	$14,403,454	$1,378,156	$13,025,298	945.1%	$259,203
6XX CR 202	1,008	1851	$11,770,368	$222,768	$11,547,600	5183.7%	$229,797
1XXXX W SH 29	1,581	2009	$7,230,786	$349,401	$6,881,385	1969.5%	$136,940
4XXX CR 207	5,574	2003	$5,788,919	$1,231,854	$4,557,065	369.9%	$90,686
1XXX BECKER RD	2,556	1998	$5,061,319	$564,876	$4,496,443	796%	$89,479
3XXX CR 207	2,496	—	$5,036,038	$551,616	$4,484,422	813%	$89,240
CR 207	1,500	1955	$4,738,588	$331,500	$4,407,088	1329.4%	$87,701
CR 287	1,640	1972	$4,302,196	$362,440	$3,939,756	1087%	$78,401
5XX CR 206	3,340	2008	$4,592,961	$738,140	$3,854,821	522.2%	$76,711
Highway 29	5,650	1992	$4,887,344	$1,248,650	$3,638,694	291.4%	$72,410
5XX CR 279	1,886	1950	$3,961,030	$416,806	$3,544,224	850.3%	$70,530
2XXX CR 284	2,968	2021	$4,022,788	$655,928	$3,366,860	513.3%	$67,001
4XXX CR 236	1,251	2009	$3,604,647	$276,471	$3,328,176	1203.8%	$66,231
2XXX CR 209	2,419	2022	$3,855,757	$534,599	$3,321,158	621.2%	$66,091
2XXX W CR 202	3,509	1985	$3,877,202	$775,489	$3,101,713	400%	$61,724
2XXX CR 287	986	1960	$2,909,586	$217,906	$2,691,680	1235.2%	$53,564
1XXX 279 CR	3,923	1998	$3,399,789	$866,983	$2,532,806	292.1%	$50,403
6XXX CR 200	1,866	1987	$2,892,164	$412,386	$2,479,778	601.3%	$49,348
6XXX FM 3405	2,116	1985	$2,873,496	$467,636	$2,405,860	514.5%	$47,877
1XXX CR 279	8,635	1995	$4,282,032	$1,908,335	$2,373,697	124.4%	$47,237
1XXXX W SH 29	1,400	1850	$2,431,430	$309,400	$2,122,030	685.9%	$42,228
3XXX CR 204	2,972	1920	$2,757,784	$656,812	$2,100,972	319.9%	$41,809
3XX CR 282	3,863	2006	$2,939,312	$853,723	$2,085,589	244.3%	$41,503
4XXX RR 1869	3,299	1996	$2,810,494	$729,079	$2,081,415	285.5%	$41,420

Data: HCAD public records, Williamson County, ZIP 78642. 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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