Methods, systems, and apparatus, including computer programs encoded on computer storage media, for transferring money using email. One of the methods includes receiving, at a user device, user input of a request to transfer a payment amount from a recipient account with a payment service system to a sender account of a sender with the payment service system. A draft email message is generated, the message having content identifying the requested payment amount, the draft email message including a confirmation link to a network resource associated with the payment service system, wherein upon receiving an indication that the recipient selected the confirmation link, the payment service system identifies a sender account of the sender and a recipient account of the recipient and initiates a transfer of the requested payment amount from the recipient account to the sender account.