A method and system are provides for an auction with interest rate bidding. The system receives a starting interest rate and a maximum interest rate for an interest-paying (IP) item at a computer. The system publishes the IP item for sale at the starting interest rate, initiates a declining auction and receives bids in the declining auction for the IP item. The system terminates the declining auction based on a predetermined period of time and identifies one or more bids that respectively include an interest rate that is lower than the maximum interest rate. Finally, the system selects a lowest interest rate bid from the one or more bids as a winning bid.