When we are trying to determine what should be the age at which we assume the client will no longer need income and we have the following average statistical data about that client's cohort (cohort meaning like demographic group) what age might we reasonably consider for the purposes of planning lifespan for the following: Single male: Single female: Married couple same age: Do we use the clients 50% probability life expectancy age? No. Doing so presents a 50% probability that the client will live beyond that age. A prudently conservative and safe approach might be to use a planning (end of life) age at which there is less than a 20% chance the client might still be alive. In the case of a married couple and age at which there is less than a 20% probability that either of the spouses would be alive. Life Expectancy: Male vs Female vs Joint 0.00% 65666768697071727374757677787980818283848586878889909192939495 Male Female Joint