If your employer cannot or will not withhold CA taxes, you should begin making quarterly estimated tax payments to CA. Your income is 100% taxable by CA. See this reference:
https://www.ftb.ca.gov/pay/estimated-tax-payments.html
If you will never physically work in GA, you should ask your employer to cease withholding GA taxes ASAP.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
