After all my research and years of learning, I feel comfortable quitting my job today since I'm financially independent, and today I would have a starting withdraw rate of around 5% and adjust dynamically from there depending on need and market conditions. Our needs and our spending won’t be perfectly smooth.
Details:
I'm in the USA, in my 30s, have a wife and kids, have a mostly VTSAX/VXUS portfolio, have 25X+ our living expenses invested, and still work currently. I could get laid off tomorrow (in tech), I could get injured, I could get fed up with my job, or any number of things could derail my career or make me stop wanting to continue working. If I did stop working, I wouldn't worry at all about spending 5% of our portfolio today. I will probably never “retire“, but I could see myself getting out of corporate America for good.
How did I arrive at ~5%? A number of tools and resources, but the one I keep coming back to is Karsten's ERN SWR Toolbox spreadsheet . I can't recommend it more highly. It's flexible, you can be as conservative as you want, and it accounts for a number of variables and scenarios. Is it perfect? No, but it's solid enough to stand alone as the only tool you use for determining WRs.
Inputs:
I use his custom “CAPE2” and take into account very discounted SS and super small side income starting in 30 years, and it says I'm around 5% starting target WR for my ~700 month time horizon (ending portfolio of $300k), and a 4% WR for 100% capital preservation. This looked more like 4.5% and 3.6% respectively back in January 2022. I will very likely have other smallish income throughout the years, should get an inheritance, etc. that all makes this even more conservative, but those items aren’t guaranteed so I didn’t include them over the next 30 years. To be clear, our budget is supported by 3.5-4% WR, but it’s nice to know we can spend up to 5% given current conditions and our variables. Since we plan on a dynamic withdrawal plan, I’ll keep coming back to the tool each year to enter in my portfolio value and check in on target spend.
Here's a video that explains how to use it: https://youtu.be/CClhsaBbTm0
So if I was to recommend tools for retirement planning (some for more precision and some for more quick, rough cutting) that I’ve come back to the most:
- Precision: ERN SWR Toolbox: https://earlyretirementnow.com/2019/12/ ... s-part-33/
- Precision: FICalc.app: https://ficalc.app/
- Rough: Rich, Broke, Dead: https://engaging-data.com/will-money-last-retire-early/
- Rough: Nesteggly https://www.nesteggly.com/investment-wi ... calculator
- Rough: FireCalc (old faithful

Especially for traditional 30 year retirement horizons, you can probably withdraw much more than you think in the current market. Check these out and let me know your thoughts. Is anyone else using the ERN SWR toolbox to determine their spending each year? Anyone currently in retirement who is using this? Would love to hear from you.
Edit: added in more clarifying context and other tools to the list