The future value of an ordinary annuity generally less than the future vlaue of an identical annuity due becasue An ordinary annuity generates payments at the end of each period. Annuities due, on the other hand, generate payments at the beginning of each period. An ordinary annuity generates payments at the end of each period. Annuities due, on the other hand, generate payments at the end of each period. An ordinary annuity generates payments at the beginning of each period. Annuities due, on the other hand, generate payments at the beginning of each period. An ordinary annuity generates payments at the beginning of each period. Annuities due, on the other hand, generate payments at the end of each period.