The Director of Finance may extend the time for filing of an annual return upon the request of the taxpayer for a period of not to exceed six months, or one month beyond any extension requested of or granted by the Internal Revenue Service for the filing of the Federal income tax returns. The Director may require a tentative return, accompanied by payment of the amount of tax shown to be due thereon by the date the return is normally due. No penalty or interest shall be assessed in those cases in which the return is filed and the final tax paid within the period as extended. (Ord. 66-67. Passed 12-19-66.)