When you place a bid using an Online Auto Auctions App, that bid is generally considered a legally binding agreement.Most online auto auctions operate under the same principles as traditional auctions. When the auction closes, the highest bid creates a binding contract between the buyer and the seller. This means if your bid wins, you are typically obligated to purchase the vehicle at the price you offered.Always read the auction site’s Terms and Conditions before bidding, as they detail the specific legal obligations and rules for that particular platform.