You’ll likely be paying more at the pump as state lawmakers passed a bill to raise Missouri’s gas tax for the first time in more than two decades. The measure would add 2.5 cents to the current 17-cent-per-gallon tax beginning this fall. It would rise over the next five years to a 12.5-cent-per-gallon hike. The bill would raise up to $514 million annually by 2027 to pay for road and bridge repairs. If signed by Governor Mike Parson, the tax would go into effect starting October 1.