Avoiding double taxation is automatic in TurboTax.
This is the general rule: The income is work state (WS) source income since it was earned there. Resident States (RS) tax all their resident's income, regardless of where earned. You will file a non-resident tax return for the WS and report the WS income. You will file a full year resident return for the RS, reporting all your income. The RS will give you a credit, or partial credit, for any tax paid to the WS. So there is little or no double tax. Prepare the WS return first.
