Planning a wedding, you should be aware of hidden costs, and this falls into that category. But, don’t worry – it’ll only set you back $11. A Banquet Permit is required by the State of Washington for all weddings that will be serving alcohol. The process is extremely simple, but you will definitely want your bar tender to have it on hand for your big day. To make it even easier, we’ve provided the link to the Washington State Liquor and Cannabis Control Board and the 4 simple steps to printing your permit.