Wednesday, the Arizona Corporation Commission unanimously approved passing $86 million more in federal tax reform savings on to APS customers beginning in April. This is the second federal tax adjustment since March 2018.The latest Corporation Commissioner approved reduction will average about $2.50 per month. These savings appear on monthly bills as a line item called the tax expense adjuster mechanism. One year ago, customers started seeing the first $119 million in savings from these tax changes on their monthly bill, and now the total benefit will reach more than $200 million. Overall, for the average-use customer, APS officials say they have lowered bills more than $12 per month in the last year.