Relating to the repeal of provisions providing for the calculation of an unused increment rate and the use of that rate in calculating certain other ad valorem tax rates.

HB 158 repeals specific provisions in Texas property tax law that previously allowed local taxing units (like cities, counties, and school districts) to use an "unused increment rate" when calculating certain property tax rates. The bill removes this rate from the formulas used to determine the "voter-approval tax rate" for property tax levies. This change simplifies the calculation process by eliminating the need to account for unused increment rates in tax rate computations. The bill directly affects how local governments calculate property tax rates for voter approval, though it does not change the underlying tax rates themselves.