The bill, H.B. No. 282, amends the Tax Code to address the calculation of the voter-approval tax rate for taxing units located in large federally declared disaster areas. It introduces a new definition for "large disaster area taxing unit," which includes counties with a majority of their territory in a disaster area consisting of at least three counties, as well as other taxing units located in such counties. The bill also specifies how the voter-approval tax rate should be calculated for these large disaster area taxing units, allowing them to use a method similar to that of special taxing units.

Additionally, the bill modifies the existing provisions regarding the voter-approval tax rate for taxing units that are not classified as large disaster area taxing units. It establishes that these units will calculate their rate based on a formula that includes the no-new-revenue maintenance and operations rate, current debt rate, unused increment rate, and disaster relief rate. The changes will take effect on January 1, 2026, and will apply to ad valorem tax years beginning on or after that date.