Systems and Methods to Facilitate the Redemption of Offer Benefits in a Form of Third Party Statement Credits

A system and method configured to provide a mechanism allowing a third party, not involved in a payment transaction made between a merchant and a payment account, to provide a credit to the payment account as an offer benefit redeemed in view of the payment transaction. The mechanism includes a transaction handler of a payment processing network configured to provide transaction information relevant to the offer to the third party. If the third party determines that a qualifying transaction in the payment account is entitled to the benefit, the third party communicates a request, via an application programming interface (API), to a portal of the transaction handler for a credit to the payment account for the payment transaction; if the request is approved, in response, the transaction handler generates a credit transaction for the payment account.