What is a property tax appeal?

A property tax appeal (also called a protest in Texas, or a VAB petition in Florida) is a formal process where you challenge your county appraiser's assessed value of your home. You file with the county Appraisal Review Board (Texas) or Value Adjustment Board (Florida), present comparable-sales evidence that your home is overvalued, and the board issues a ruling.

When is the Florida property tax appeal deadline?

Florida property owners have 25 days from the date the TRIM (Truth in Millage) notice is mailed to file a VAB petition (Form DR-486). TRIM notices typically mail mid-August, putting the petition deadline in early-to-mid September. The deadline varies by county and is printed on the TRIM notice itself.

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 several hundred to several thousand dollars per year in Florida (Save Our Homes locks in the savings for 10+ years). 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 75203 are overassessed?

40.9% of homes in Dallas ZIP 75203 (663 of 1,620 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 Dallas ZIP 75203?

File a Notice of Protest with DCAD 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.

Dallas County · Dallas

ZIP 75203 property tax overassessment report

40.9% of homes in Dallas ZIP 75203 (663 of 1,620 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $1,002,053.

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1,620

Homes in ZIP

663

Flagged as overassessed

40.9%

$70,297

Avg overage / home

$73,398

Typical value

~$78/sqft

Dallas County · over-assessed homes overpay year-round

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

Dallas County guide →

Top 25 most overassessed homes in 75203

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
3XX E 7TH ST	4,766	2025	$1,481,870	$371,748	$1,110,122	298.6%	$24,201
2XXX SOUTHERLAND AVE	1,080	1940	$1,186,000	$84,240	$1,101,760	1307.9%	$24,018
3XX N PATTON AVE	4,860	2025	$1,433,590	$379,080	$1,054,510	278.2%	$22,988
3XX E 7TH ST	4,766	2025	$1,351,200	$371,748	$979,452	263.5%	$21,352
3XX N PATTON AVE	5,449	2022	$1,329,170	$425,022	$904,148	212.7%	$19,710
4XX N PATTON AVE	6,516	2025	$1,364,450	$508,248	$856,202	168.5%	$18,665
5XX AVE L	5,252	2022	$1,184,980	$409,656	$775,324	189.3%	$16,902
3XX E GREENBRIAR LN	3,140	2020	$1,011,020	$244,920	$766,100	312.8%	$16,701
6XX N EWING AVE	2,316	2014	$944,820	$180,648	$764,172	423%	$16,659
1XX E GREENBRIAR LN	1,332	1960	$851,390	$103,896	$747,494	719.5%	$16,295
3XX E GREENBRIAR LN	3,115	2020	$990,000	$242,970	$747,030	307.5%	$16,285
3XX E GREENBRIAR LN	3,170	2020	$964,800	$247,260	$717,540	290.2%	$15,642
8XX N BECKLEY AVE	2,729	2015	$922,980	$212,862	$710,118	333.6%	$15,481
3XX E GREENBRIAR LN	2,997	2020	$942,050	$233,766	$708,284	303%	$15,441
4XX AVE L	4,982	2022	$1,094,800	$388,596	$706,204	181.7%	$15,395
3XX E 5TH ST	3,042	1925	$923,480	$237,276	$686,204	289.2%	$14,959
4XX AVE L	4,982	2023	$1,055,530	$388,596	$666,934	171.6%	$14,539
8XX N CRAWFORD ST	4,840	1921	$1,043,730	$377,520	$666,210	176.5%	$14,523
6XX BLAYLOCK DR	3,210	1945	$909,050	$250,380	$658,670	263.1%	$14,359
5XX N PATTON AVE	4,605	2025	$1,015,120	$359,190	$655,930	182.6%	$14,299
2XX E 6TH ST	3,428	1930	$923,060	$267,384	$655,676	245.2%	$14,294
8XX N BECKLEY AVE	2,624	2015	$850,000	$204,672	$645,328	315.3%	$14,068
1XX LA ESTRELLA PLZ	1,313	2004	$733,080	$102,414	$630,666	615.8%	$13,749
6XX BLAYLOCK DR	2,701	1948	$841,120	$210,678	$630,442	299.2%	$13,744
1XXX N BECKLEY AVE	1,767	1920	$765,220	$137,826	$627,394	455.2%	$13,677

Data: HCAD public records, Dallas County, ZIP 75203. 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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