TX SB1052

Allows "affected taxing units" (located in Gulf of Mexico counties with populations under 500,000) to exclude contested property values from their current total value when calculating no-new-revenue and voter-approval tax rates during property appraisal appeals

Defines "anticipated substantial litigation" as appeals filed by property owners whose properties had taxable values among the 10 highest in the taxing unit in the preceding year

Requires designated taxing unit officers to notify property owners with top-10 highest taxable values by July 1 that they may need to comply with new disclosure requirements

Mandates property owners intending to file appeals submit their uncontested taxable value amount and a statement of intent to pay taxes on that uncontested value by August 7 or within 21 days of their first protest hearing

Requires tax rate calculation forms to include an addendum documenting any exclusions related to anticipated substantial litigation, which must be posted on county websites and incorporated into property tax databases

Takes effect immediately with two-thirds legislative vote (applying to tax years beginning January 1, 2025) or September 1, 2025 (applying to tax years beginning January 1, 2026)