Answer:
There will be tax reporting requirements, so you'll need information on the winner.
It also depends on how the winner will be determined. If there will be a drawing and only your customers can enter, you may well have a lottery under 12 U.S.C. Sec. 25a. And be sure to check your state laws for similar prohibitions. Opening the drawing to everyone (except your employees)can get you out of this definition.
You would be advised to adopt a set of rules pertaining to the drawing.
First published on BankersOnline.com 1/6/03