Simply put:
You become a FL resident for tax purposes on the day you begin living in FL with the intent (as demonstrated by your actions) of making it your permanent home. There is no "6-month rule." From that point on, you have no tax obligation to CA unless you have CA-source income, as I explained in my previous post.
If you as a resident of CA or FL never physically work within the state of NY, then you have no tax obligation to the state of NY. The convenience rule would not apply.
FL, of course, has no state income tax.
The income you earned prior to your move from CA is of course 100% taxable by CA.
So, for tax year 2022, you will file a CA part-year resident tax return, CA Form 540NR. And if you never physically worked within NY in 2022, that CA part-year resident return is the only state tax return you'll have to file**.
**If you never worked within NY but your employer mistakenly withheld NY taxes, then you will have to file a non-resident NY tax return, allocating zero income to NY, in order to have those taxes refunded.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
