Who wants to be a millionaire? Let's examine your ability to manipulate inputs into a financial calculator in order to determine how you can easily become a millionaire. We are going to assume that you have 40 years until retirement and that investments will return an annual return of 8% over the course of those 40 years. Ignoring taxes, how much do you need to investment on a monthly basis in order to have a million dollars at the end of 40 years? How much do you need to invest on a monthly basis assuming an annuity due?