With respect to any amount required to be shown on any return, form, statement, or other document required to be filed with the tax commissioner and for purposes of amounts in tax tables prescribed under subsection 12 of section 57-38-30.3 and subsection 3 of section 57-38-59, the amount may be rounded to the nearest dollar. The cents must be disregarded if the cents amount to less than one-half dollar. If the cents amount to one-half dollar or more, the amount must be increased to the next whole dollar.