There are provided systems and methods for user interfaces for account statement assignment. A user may engage in transactions over a time period, such as purchases of goods, services, or other items using a physical payment card associated with an online transaction processor. A statement may be issued at the completion of the time period, where the statement may include account information requiring a payment by the user, such as a statement balance. The user may request for another user to provide a payment for all or a portion of the balance using one or more user interfaces of a peer-to-peer payment and social networking platform. Thereafter, a request may be provided to the other user, which may request the payment. The other user may process the payment, which may be used to provide funds directly to the statement balance.