Here's the worst part -- as far as the IRS is concerned, that money is considered income and anything you don't spend in the same calendar year is considered profit and is taxed as such.
So after a year, assuming you spend no money at all, you'd still be in the hole to pay back your backers.
I personally only use Kickstarter to play "patron of the arts". I fund art projects with the assumption that I will get nothing in return. If I'm lucky, I get some nice art to enjoy (so far one of the projects has come to fruition, where I backed the recording and distribution of an a cappella album, and recently got my CD).
So after a year, assuming you spend no money at all, you'd still be in the hole to pay back your backers.
I personally only use Kickstarter to play "patron of the arts". I fund art projects with the assumption that I will get nothing in return. If I'm lucky, I get some nice art to enjoy (so far one of the projects has come to fruition, where I backed the recording and distribution of an a cappella album, and recently got my CD).