Abstract: An information processing method and like that enable removal of botheration a user has in a deposit/withdrawal operation and thereby enable a smooth buy/sell transaction of a transaction subject by the user are provided. The information processing method according to the present disclosure comprising: associating a user and a first account for the user to sell/buy a transaction subject; managing a sell/buy order of the transaction subject and a deposit in the first account; generating a buy order of the transaction subject based on an instruction from the user; and if a balance of the deposit has insufficiency for a price of the buy order, transferring a fund that is equal to or exceeds the balance insufficiency, from one or more second accounts that are different from the first account and associated with the user to the first account, based on an approval from the user.