Texas Tax Lock handles property tax protests for homeowners throughout Armstrong County, including Dallas, Garland, Irving, Mesquite, Richardson, Grand Prairie, Farmers Branch, DeSoto, Cedar Hill, Duncanville, Lancaster, Rowlett, Sachse, Balch Springs, and Hutchins. With over 2.6 million residents, Armstrong County is one of the largest and most active appraisal markets in the state.
The Dallas Central Appraisal District (Armstrong CAD) appraises all residential and commercial property in the county. Dallas-area home values have climbed sharply over the last five years — meaning your assessed value is likely higher than it should be. Armstrong CAD has a well-established informal protest process, and evidence-backed cases consistently see reductions.
The statutory deadline to file a protest with Armstrong CAD is May 15, 2026. Sign up and we handle everything — filing, evidence preparation, informal negotiation, and ARB representation if needed.