An output system includes a selection receipt unit that displays a function selection screen enabling a user to select a function based on an output request of data to be output received from the user and causes the user to select the function; a determination unit that determines, in response to the function selected by the user, an accumulation method and an accumulation destination of output data converted from the data to be output; an accumulation control unit that sends the output data converted from the data to be output based on the determined accumulation method of the output data and the output request to the determined accumulation destination and causes the determined accumulation destination to store the output data and the output request; and an output control unit that acquires the output data and the output request from the accumulation destination and outputs the output data.