Method and system for split payment

A computer system comprising:

• a memory configured to store computer-readable instructions;
• and
• at least one processor configured to execute the computer-readable instructions to:
• when a split payment service application is launched, provide a graphic user interface (GUI) displaying a camera icon and a gallery icon,
• in response to the camera icon being selected, capture an image of a bill or a receipt of at least one transaction for a split payment, and recognize a plurality of payment items of the at least one transaction based on the captured image;
• in response to the gallery icon being selected, retrieve the image of the bill or the receipt of the at least one transaction from the memory, and obtain the plurality of payment items based on the retrieved image;
• convert the image of the bill or the receipt including the plurality of payment items which are not individually selectable, into a split payment page including the plurality of payment items along with a plurality of checkboxes that allow a visitor of the split payment page to select a payment item, among the plurality of payment items, by checking off a corresponding one of the plurality of checkboxes,
• provide the visitor a link to the split payment page by providing a chatroom of a messenger service in which the visitor participates with a message including the link,
• based on the payment item being selected from the plurality of payment items, and a payment button being selected by the visitor of the split payment page after the link is selected by the visitor, process remittance of a portion of a cost of the at least one transaction corresponding to the selected payment item, and automatically updating the split payment page according to a result of the remittance.