If you work remotely as an employee of a CA employer, you will not need to file a CA nonresident state income tax return related to this income. This is due to the fact that income in sourced to where the work in performed (FL) regardless of where the company is located (CA).
Since you will not have a CA state income tax filing, just check that you selected "no" to " Did you make money in any other states?" under the Personal Information section in TurboTax (see screenshots)
If you have any CA withholdings on your W-2, then in order to get the
full refund of your CA state income tax withholdings, you will need to file a
nonresident CA return but report zero "0" income from CA. You must mail in
this CA nonresident state income tax return and include your state W-2
information. You will want to include an explanatory statement with your CA
return stating your situation (that your CA employer withheld CA taxes from
your wages in error due to a fact that you are a remote working who is a permanent residence of FL).
