Originally Posted by jernich
At the risk of asking a dumb question.....
How do you use FIRECalc for estimating withdrawals? I see a cloud of curves in the output. Do you mean you eyeball an average from those to estimate a mean portfolio value year by year?
I use Quicken's planner as well, but as you say it's deterministic so generally only good for a base case, or for examining the effects of different assumptions. I'll have to try i-orp. Like you I want to look at all models. My favorite though is the spreadsheet I built which does a true equity performance Monte Carlo (based on S&P500 going back to 1950) and allows all kinds of input variables which I've added as I become aware of them.
I meant running "what-if" scenarios to see at what point your withdrawals were high enough to make the scenario fail.
There's also a tab labeled "investigate" that allows you to set a success rate (can be 100%) and it spits out the spend amount. You can then subtract out your other income sources (SS, pensions, rent, whatever) to see what the withdrawal could be.