Posted by skillet on February 09, 2002 at 21:56:43:
Get “Loopholes of the Rich”, a book in the Rich Dad Series. It has all kinds of examples of things that can (legally) be deducted.
Also, spend the money and get a good tax advisor. They will save you many-fold over what you pay them.
A general definition of what can be allowed as a business expense is that expense which is ordinary and necessary in carrying on the trade or business. The afore-recommended tax advisor can help you figure out what that is.