California's tax regime is really backward. I suspect Tesla's departure is just the tip of the iceberg and that the repeal of the SALT deduction in 2017 really hastened this trend. High earners pay an effective tax rate of > 50%. They are partially picking up the slack from Prop 13, which artificially distorts the housing market by allowing longtime homeowners to pay property taxes based on decades-old assessed value…
>High earners pay an effective tax rate of > 50%. Musk has not paid any tax because he hasn't cashed out any of his stock options yet. Some of his options will expire next year so he will pay tax then, but I am sure California will get the lion share of the tax revenue (as Musk lived in California up to 2021.)
CA also has some fairly unique (and IMO unfortunate) tax rules where they will still require you to pay taxes on some things even after you've moved out of state. I believe option exercise (for options granted+vested while living in CA) is one of those.