California State Income tax

[nwflyboy]

I moved out of California in 2020 to Louisiana.  I was based in Los Angeles from Jan 1 to Oct 31 2021.  California is saying I need to file state income tax and are billing me a large amount.  I understand the 50% flying rule and I definitely flew less than 50% in California airspace.  What documents do I need to send to them so they will stop harassing me?

[TomD8]

Is California disputing your Cailfornia non-residency in 2021, or are they disputing your California scheduled flight time in that year?