Definately not designed with the EARLY retiree in mind - told me I couldn't use it because I am under 35. *Looks pretty unsophisticated, anyway.
I just ran the calculator for a 60% stock/40% bonds portfolio for a married couple taking $3,000/month after tax
from a $1 Million nest egg and a 15% marginal tax rate.
It gave me about a 95% survivability for 30 years.
I don't know how the calculator handles taxes. A married couple with $40,000 income and the standard deduction would pay a bit over $3,000 in Federal income taxes.
It would be easier if we could input "pre-tax" income.