@ian21352
Any work you actually (physically) perform inside CA is taxable by CA, regardless of your state of residence.
If you're a W-2 employee working 100% remotely from a WA location for a CA employer, and you remain a resident of WA for all of 2020, then your income from that remote work is not taxable by CA. However, at year's end you'd have to file a non-resident CA return, showing zero CA income, in order to get a refund of any incorrectly withheld CA taxes.
If you're an independent contractor (you receive a 1099-MISC instead of a W-2) working remotely for a CA employer, then your income is taxable by CA.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
