Done all the calcs and found out my SWR% is higher then I thought
Using the traditonal 4% swr, my $2.5m nw at age 53 would seem like it could spin off $100k gross spend per year, and maybe roughly $84k of net spend of taxes per year, but if you add in social security, roth conversions, and a guard rails approach, I found that I could safely spend $120k net ($133k gross) with a 90%+ chance of never running out of money before age 90.
$133k gross withrdrawal would be equal to 5.3% swr in the beginning. The key elements that made my withdrawal rate sustainable was:
Social security kicking in at age 67 substantially lowering swr from there on out.
Guardrails approach means if i am willing to lower my net spend to about 9k on leans years, and 10k / month on good years, ups my success rate quite a bit.
with a starting pre/post tax mix of 60pre / 40post tax accounts, doing a good amount of roth conversions from age 55 - 70 means my net tax rate will go down to about 7-8%
Point is, If i used standard calculations of an 8.3k / month spend on $2.5m nw, at net, you would think you can spend $7k/month net of taxes, but the real number if you plan it correctly, you can really spend between $9k - $10k per month and have 90% success rate.
Its worth it to dig into the details...