The Commissioner is authorized to waive the collection of any amount due the state as a penalty under provisions of this title providing for fees, premium taxes, or other miscellaneous charges collected by the Commissioner, whenever or to the extent that he may determine that the default giving rise to the penalty was due to reasonable cause and not due to gross or willful neglect or disregard of the law, regulations, or instructions pertaining thereto. The Commissioner may waive the collection of any interest, in whole or in part, due the state on any unpaid taxes whenever or to the extent that he reasonably determines that the delay in payment of the taxes was attributable to the action or inaction of the department.