Your passport is a valid US ID. You can vote nationally, but if you are no longer a California resident, you can't vote for any parts of the state elections.

Your passport is a valid US ID. You can vote nationally, but if you are no longer a California resident, you can't vote for any parts of the state elections. Get a virtual mailbox, ideally in another state (like Washington, Texas, etc). If you have California income, you still owe them taxes, but need to file as a non-resident. Your situation isn't unique, but you're not approaching this correctly if you want to avoid taxes. I'm in your situation, but did a bit of research and put in the effort to do this in a way that makes it way less likely I'll be audited by CA.