What percent of homes in ZIP 78731 are overassessed?

24.6% of homes in Austin ZIP 78731 (2,093 of 8,523 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 Austin ZIP 78731?

File a Notice of Protest with TCAD by May 15 each year. Bring 3-5 comparable sales from your immediate area to your ARB hearing. Past the May 15 date, a late protest may still be accepted for good cause under §41.44(b) until the ARB approves the records (typically mid-July); the next regular protest window is April-May 2027.

Travis County · Austin

ZIP 78731 property tax overassessment report

24.6% of homes in Austin ZIP 78731 (2,093 of 8,523 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $11,761,830.

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8,523

Homes in ZIP

2,093

Flagged as overassessed

24.6%

$261,376

Avg overage / home

$1,149,343

Typical value

~$1703/sqft

Travis County · over-assessed homes overpay year-round

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

Travis County guide →

Top 2 most overassessed homes in 78731

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
4XXX MOUNT BONNELL RD	772	1992	$4,925,796	$1,314,716	$3,611,080	274.7%	$65,722
5XXX TORTUGA TRL	2,109	1959	$4,377,782	$3,591,627	$786,155	21.9%	$14,308

Data: HCAD public records, Travis County, ZIP 78731. Addresses anonymized to protect privacy; full data is public record under Texas Public Information Act. See the full statewide over-assessment study for the methodology behind these numbers.

Is yours one of them?

Past the regular May 15 date, late protests may still be accepted for good cause until the ARB approves the records (typically mid-July), and Travis County publishes fresh 2027 values next April. Check your address free now, see if you can still file this year, and when new values drop your $49 iFile-ready protest kit is 30 seconds away.

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