Retailer Tax Fairness act; enact.

SB 3121, the "Retailer Tax Fairness Act," provides a tax credit to Mississippi retailers who accept debit or credit cards. It entitles merchants to a credit equal to 2.5% of state and local taxes collected from customers using electronic payment transactions (like credit/debit cards), because they pay interchange fees to payment networks. This directly affects retailers processing card payments, reducing their tax burden by offsetting fees they pay to process transactions. The credit applies to taxes under specific Mississippi tax codes and local hotel/motel/restaurant taxes, effective July 1, 2026.