A computing system for electronically managing a token across multiple computer networks is described. The computing system includes a processor in communication with at least one memory device. The processor is programmed to generate a token associated with a payment account, the token having a format that simulates a format of a checking account identifier, and receive a payment request including the token, the payment request processed over a first network. The processor is also programmed to apply a set of rules to the payment request, determine that the payment request satisfies the set of rules, and convert the token into a payment account identifier using the set of rules. The processor is further programmed to transmit an authorization request message to a second network, receive authorization of the authorization request message from the second network, and provide authorization of the payment request to the first network.