I own a very small sole proprietorship business and am also getting married in a few weeks. I have a few remaining expenses pertaining almost entirely to the guest reception after the ceremony. If my business were to pick up the bar tab, and display a placard stating "This open bar sponsored by....", could I claim that expense as an advertising expense? If there are enough business oriented placed advertisements, like small placards at every table, or printed napkins with the company website, could I write off the entire reception as a marketing event? I don't see this as being different from companies sponsoring golf hole in charity tournaments, or sales reps. picking up the tab in a bar after pitching to clients. I may be the groom, but I would also be marketing my company to each of the the hundred people in attendance, no? Thanks in advance for any feedback.