Indiana’s gasoline use tax will drop to 18.6 cents per gallon starting Dec. 1.

The drop impacts what amounts to the sales tax on gas in Indiana.

That’s a nearly three-cent drop since October, and the lowest mark since March of this year. It’s almost five cents less than December of last year.

The use tax is based on the average wholesale price of gasoline in the previous month. The total combined state and federal taxes on a gallon of gasoline will be 71.0 cents effective in December.

The average price for gas overall in Indiana is the lowest it’s been since January sitting around $3.27 a-gallon, says GasBuddy.