One of our local NPR stations has been advertising that if you pledge by tomorrow you'll be entered in a drawing to win a trip to see "Wait, Wait, Don't Tell Me" in Chicago. That got me curious about the tax treatment of this.
If you make a donation to a charity and receive a premium in return, you're supposed to reduce the amount you deduct by its value. How does this work in the case of a drawing? If the prize is worth $1,000, and there are 1,000 entries, is the value of the premium $1 for each of them, or does the winner get $1,000 in income that he would have to report (minus his contribution)?