An output system includes an output section, a fee calculation section, and a payment code notification section. The output section outputs an image and/or a document. The fee calculation section calculates a fee necessary for outputting the image and/or the document in accordance with a specific standard. The payment code notification section notifies a payment code issued by an online payment service for the fee calculated by the fee calculation section. The output section outputs the image and/or the document when the fee has been paid via the online payment service using the payment code notified by the payment code notification section.