What is the fee for purchasing online? Auction Support August 08, 2018 13:21 Updated Follow Purchasing fee is based on a sliding scale. There is a $50 fee for online purchases (in addition to the buy fee). Related articles How Do I Participate in A GSA Auction How does the auction work? Best Procedures For Viewing The Auction Take a Tour of Our System What types of auctions are available? Comments 0 comments Please sign in to leave a comment.