repeal the expiration of a reduction in certain gross receipts and use tax rates.

This bill extends a tax rate reduction for gross receipts and use taxes in South Dakota by repealing its expiration date. It directly affects businesses and individuals subject to these state taxes by allowing them to continue paying reduced rates. The key mechanism involves removing the time limit that previously ended the tax cut, ensuring the lower rates remain in effect. No new taxes are created; instead, the bill maintains existing tax relief measures that were originally enacted.