Evaluating values of different terms in online auctions is disclosed. An interest rate and a period from a buyer for a lot are obtained. The lot has a predetermined value. A first bid is received from a first bidder and a second bid is received from a second bidder on the lot. The first and second bids each have a payment time and a rebate. The first bid is transformed into a first value and the second bid is transformed into a second value using the interest rate, period, and predetermined value from the buyer and the payment times and rebates from the first and second bidders.