I left US on 27 Oct 2022. Does my state of residence remain Washington in My Info. Also, are there any special documents to submit when leaving US, not returning back?

[ErnieS0]

No. Washington state is no longer your resident state if you left the U.S. in October 2022.

TurboTax wants to know your residence as of year-end. Choose Foreign or U.S. Possession at the bottom of the dropdown list in State of residence (on December 31, 2022).

As for documentation, you will have to file a U.S. tax return if you had U.S. income in 2022.

You are dual-status because you were a U.S. resident who became a non-resident.

TurboTax does not handle dual-status returns. Contact TurboTax partner Sprintax.com to prepare your return.

See How should I file my taxes as a dual-status alien?