In Freelancer, bidding is the process by which freelancers submit proposals to project owners to be awarded a contract or agreement to complete a project. To submit a bid, a freelancer must first find a project they are interested in and click on its title to go to its main page. On the projects details page, the freelancer can place their bid by entering their bid amount, the number of days for delivery, and a description of their proposal. They can also list milestones or tasks and set a Milestone Payment for each task, choose an optional upgrade if they wish, and click Place Bid. The bid proposal should include the freelancer's rate, completion timeline, and any relevant experience they have that makes them the right person for the job. Freelancers can bid for free regardless of their membership level, and their bids are returned to them periodically as they use them.