This is part of a program that the Mississippi Public Service Commission started in January. It asked utilities with rate jurisdiction — such as Entergy Mississippi and Mississippi Power Co. — to submit plans for how they will credit tax deductions or rebates to customers. Dec. 22 was the date of the tax overhaul. It includes a decrease in the tax rate for public utilities. Haley Fisackerly (Entergy Mississippi president, chief executive officer) stated in a press release that “we intend to ensure our customers receive timely benefits through the new tax reforms.” “The tax reduction will enable us to lower rates, provide substantial credit and lower customers’ bills during high-usage summer months,” Haley Fisackerly, Entergy Mississippi president and chief executive officer, said in a press release. Utility companies used to be subject to a 35% tax rate under the old corporate tax rate. This rate was reduced to 21 percent after the act became law. Entergy stated in a statement it expected residential customer bills to fall more than $30 per monthly during July, August, and September due to a combination low-rates and short term bill credits. According to the statement, the formal plan will be filed mid-March as part the annual rate filing.