Texas property tax appeal deadlines
In Texas, you typically must file your appeal by May 15 or within 30 days of the notice of appraised value. Miss this window and you generally lose your appeal rights for the year — you'll have to wait until the next assessment cycle.
The appeal is filed with the Appraisal Review Board (ARB). The exact filing procedure varies by county within Texas, but most allow online or mail-in filing with a small fee or no fee.