Has the gas tax rate increased? Yes. Beginning July 1, 2017, the gas tax rate is increased to 24 cents. See important notice 17-08 for rate increases for subsequent years. December 11, 2017 15:47 Related articles Which motor fuel tax forms are required to be filed electronically? Are computer software consulting services subject to sales and use tax? What are advertising materials, and are they subject to sales and use tax?