To bid on items on the General Services Administration auctions website, first register with a username and password, provide a taxpayer identification number and credit card, and then use the Trader menu to browse goods and place bids. View your preferred item, and then click the Place Bid button.
All currently available items are listed on the GSA auctions home page, but you must register to participate in auction bidding. Each item's page lists its current bid amount, total number of bids and auction closing date. You can place multiple bids on the same item, and you can enter bids manually or automatically using the Proxy Bidding function. Once entered, bids cannot be changed or lowered. If you submit the winning bid, the GSA sends you an email with instructions to submit payment within two days.