1. A non-transitory readable medium having instructions stored thereon that, in response to execution by a computing device, cause the computing device to perform operations, the instructions comprising instructions for administering an equity indexed annuity benefit plan offering at least one owner of said plan a guaranteed lifetime income benefit, instructions for storing data relating to an equity indexed annuity account; instructions for receiving a request from said at least one owner for payment of said guaranteed lifetime income benefit; instructions for determining whether said at least one owner previously requested payment of said guaranteed lifetime income benefit; A. i. if said at least one owner had not previously requested payment of said guaranteed lifetime income benefit, then determining a first Annuity Value, calculating a first income percentage, and calculating a first income amount based in part on said first income percentage and said first Annuity Value and defining the guaranteed lifetime income amount as said first income amount; and ii. instructions for annually thereafter, determining a second Annuity Value, calculating a second income percentage, and calculating a second income amount based in part on said second income percentage and said second Annuity Value, comparing said first income amount to said second income amount determining if said first income amount is greater than said second income amount, and redefining the guaranteed lifetime income amount as the greater of said first income amount or said second income amount B. i. if payment of said first lifetime income payment was previously requested and said payment was made, calculating a first Annuity Value on a date that said first income payment amount was paid; calculating a second income payment amount, comparing said first income payment to said second income payment amount and determining if said first income payment is greater than said second income payment amount; and defining the guaranteed lifetime income amount as the greater of said first income payment amount or said second income payment amount.