All taxes provided for in this article, when not otherwise expressly provided, must be paid for an entire year in advance before a license shall issue. No license shall issue for a less period than 12 months except in cases otherwise provided in this article. The receipt of the assessor and collector, countersigned by the city manager and city secretary, shall constitute the license, and these taxes are hereby made payable in currency or coin of the United States. (Ord. 8121)