OK I ran a scenario using the following assumptions, which are all to me very conservative based on what I know from this thread:
Base Spending 38K per year after tax
Health insurance cost $6,000 year one 20K per year thereafter
Annual return on portfolio: 1 percent over inflation
Source of funds: (Pretax - all funds would need to pay tax on top of base spending+ Ins)
State income tax rate 4% less 5,000 deduction allowed
Begin taking SS : Age 67 - amount = $31,200 in today’s dollars wife: $13,200 start same year.
Once get to age 65 medical drops to 13 K per year in current dollars
Year 2 total taxes are $7,300 in order to have after tax income needed ($65,500 in year 2)
So the end result I calculate is that at age 68 your portfolio will be $385,000 in today’s dollars but Social Security at that point will be providing $44,400 of income from which you would need 14K of income to draw from your portfolio going forward or 3.64% of the portfolio remaining.
So to the extent you have after-tax funds to reduce income taxes, to the amount the portfolio actually performs and cuts that may or may not happen to social security are the risks. Other risks are more serious medical injuries, however stress is a higher risk than most of those. My personal advice is that it is close but if you have the discipline to hold the costs where they are to go for it and if you find you are running behind the plan after a few years to worry about finding a job of some sort at that time.