Late payment of tax, interest or penalty

If the tax assessed, interest charged, or penalty imposed under this Act except the penalty imposed under this section or any installment thereof is not paid by any dealer within the time specified therefore in the order of assessment or in the order permitting payment in installment, the Commissioner or any person appointed to assist him under sub-section

1. (1) of section 3 may, after giving such dealer an opportunity of being heard, imposed on him a penalty not exceeding twenty-five per centum of the amount due form him.