The mandatory starting bid for a given auction, set by the seller at the time of listing.
The lowest staring price that will be accepted by the auctioneer.
The starting bid for an auction, decided by the seller when setting up the auction.
The lowest acceptable amount at which the bidding must commence.
The seller stipulates a minimum opening bid, which sets the opening price given in your listing when it first goes online and before there are any bidders. This amount should not be as high as the hidden "Reserve Price," if you have one. Many sellers believe it works to set your Opening Bid as low as possible - $1.00.