1. A method comprising: generating, by a reward card engine of a computer based system, a registration identifier for a first transaction account and a second transaction account; associating, by the reward card engine of the computer based system, the registration identifier with the first transaction account and the second transaction account, wherein the first transaction account is associated with a reward program on a reward system, in response receiving first transaction account identifying information by the computer based system and the first transaction account satisfying eligibility criteria, wherein the second transaction account is associated with the reward program, in response receiving second transaction account identifying information by the computer based system and the second transaction account satisfying eligibility criteria, and wherein the registration identifier indicates that each of the first transaction account and the second transaction account are associated with the reward program; receiving, by an offer registration system of the computer based system, offer information and merchant information from a merchant system, wherein the offer information is stored in an offer database and the merchant information is stored in a merchant database; creating, by the offer registration system of the computer based system, an offer with the offer information and the merchant information, associating, by the computer based system, the first transaction account and the second transaction account with an offer distribution engine, wherein the offer distribution engine is capable of accessing and distributing offers stored in the offer database; selecting, by the computer based system, a subset of the offers that meet offer parameters for the first transaction account and the second transaction account; authorizing, by an authorization server of the computer based system, a transaction with the merchant system in response to an account affiliate initiating the transaction with the merchant system using at least one of the first transaction account or the second transaction account; wherein the authorization is based on a first amount of available credit associated with the at least one of the first transaction account or the second transaction account; receiving, by the computer based system and in response to the authorizing, the registration identifier and transaction information for the transaction from the merchant system for the transaction between the merchant system and the account affiliate; determining, by the computer based system, that the transaction is associated with at least one of the first transaction account or the second transaction account based on the registration identifier and the transaction information; reducing, by the computer based system, the first amount of available credit for at least one of the first transaction account or the second transaction account by a transaction amount included with the authorization; accessing, by the computer based system and in response to the authorizing, the subset of offers; analyzing, by the computer based system, the transaction information to determine that the transaction qualifies for the offer of the subset of offers ; selecting, by the computer based system and in response to the analyzing, the offer; generating, by the computer based system, a record of the offer associated with the transaction; receiving, by the computer based system, the transaction information for the transaction from the merchant system in response to a settlement operation for the transaction between the merchant system and a transaction account issuer system; adjusting, by the computer based system, the transaction amount associated with at least one of the first transaction account or the second transaction account based on the offer and the transaction; adjusting, by the computer based system, the first amount of available credit for at least one of the first transaction account or the second transaction account, in response to the adjusting the transaction amount; and associating, by the computer based system, the record of the offer with at least one of the first transaction account or the second transaction account in response to the transaction.