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 75454 are overassessed?

15.1% of homes in Melissa ZIP 75454 (1,385 of 9,192 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 Melissa ZIP 75454?

File a Notice of Protest with Collin CAD 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.

Collin County · Melissa

ZIP 75454 property tax overassessment report

15.1% of homes in Melissa ZIP 75454 (1,385 of 9,192 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $3,304,636.

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

9,192

Homes in ZIP

1,385

Flagged as overassessed

15.1%

$110,977

Avg overage / home

$463,191

Typical value

~$188/sqft

Collin County · over-assessed homes overpay year-round

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

Collin County guide →

Top 25 most overassessed homes in 75454

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
2XXX CENTRAL EXPY	720	1969	$9,441,415	$135,360	$9,306,055	6875%	$189,844
5XX FANNIN RD	1,747	1956	$8,225,490	$328,436	$7,897,054	2404.4%	$161,100
1XXX SAM RAYBURN HWY	1,170	1935	$4,289,047	$219,960	$4,069,087	1849.9%	$83,009
2XXX MCKINNEY ST	3,200	1965	$4,121,628	$601,600	$3,520,028	585.1%	$71,809
2XXX MILRANY LN	1,474	1982	$3,656,409	$277,112	$3,379,297	1219.5%	$68,938
4XXX PRIVATE ROAD 6007	5,412	2019	$4,373,364	$1,017,456	$3,355,908	329.8%	$68,461
1XXX MILRANY LN	1,941	1961	$3,549,237	$364,908	$3,184,329	872.6%	$64,960
5XXX COUNTY ROAD 412	2,728	1965	$3,690,322	$512,864	$3,177,458	619.6%	$64,820
1XXX MILRANY LN	2,692	2018	$3,654,115	$506,096	$3,148,019	622%	$64,220
1XXX MILRANY LN	1,680	1996	$3,311,261	$315,840	$2,995,421	948.4%	$61,107
3XXX COUNTY ROAD 276	3,280	1961	$3,401,657	$616,640	$2,785,017	451.6%	$56,814
3XXX LAGUNA DR	2,128	2016	$2,767,131	$400,064	$2,367,067	591.7%	$48,288
5XXX N MCDONALD ST	1,170	2000	$2,565,334	$219,960	$2,345,374	1066.3%	$47,846
1XXX SAM RAYBURN HWY	4,550	2011	$2,994,766	$855,400	$2,139,366	250.1%	$43,643
1XXX MILRANY LN	2,046	1983	$2,406,463	$384,648	$2,021,815	525.6%	$41,245
3XXX COUNTY ROAD 338	8,075	2004	$3,489,701	$1,518,100	$1,971,601	129.9%	$40,221
2XXX COUNTY ROAD 1217	4,098	1971	$2,704,920	$770,424	$1,934,496	251.1%	$39,464
1XXX MILLER RD	1,706	1983	$2,235,234	$320,728	$1,914,506	596.9%	$39,056
1XXX KEVER MAIN	3,727	1935	$2,544,476	$700,676	$1,843,800	263.1%	$37,614
5XXX KIEFER DR	4,380	2016	$2,649,011	$823,440	$1,825,571	221.7%	$37,242
8XX MILRANY LN	1,196	1983	$2,012,967	$224,848	$1,788,119	795.3%	$36,478
9XX FANNIN RD	1,376	1940	$2,021,600	$258,688	$1,762,912	681.5%	$35,963
1XXX SAM RAYBURN HWY	3,829	2001	$2,255,839	$719,852	$1,535,987	213.4%	$31,334
3XXX COUNTY ROAD 413	578	1956	$1,637,876	$108,664	$1,529,212	1407.3%	$31,196
5XXX COUNTY ROAD 413	4,153	2018	$2,225,330	$780,764	$1,444,566	185%	$29,469

Data: HCAD public records, Collin County, ZIP 75454. 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 CollinCounty 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…