I was trying to figure out how 20% savings could possibly be nearly enough, and then was like, “Oh, right. Washington. No state income tax.” When I started freelancing full-time, my accountant recommended keeping back 40% for taxes to be sure I could cover federal, state, county, city, and local transit district taxes….And that was nearly enough. I was still a bit short. Thankfully aggressive saving in other areas saved the day so I can cover it all.