The cost of crowdfunding varies per platform. For example, Kickstarter charges a fixed fee of 5% of the entire amount raised.  If you don’t reach your target, you won’t have to pay the fee, and neither will your backers.  The platform fees paid to fundraisers on the remainder of the crowdfunding sites on this list range from 0% to 12%. The platforms rely on these donations to cover these expenses.  In addition, payment processing costs range from 2% to 5% + $0.30 each transaction.