Yes, you
can file a joint return and it is probably advantageous to do so. Your military status (or your wife’s
non-military status) does not change this.
Please see the following FAQ: https://ttlc.intuit.com/replies/3288477 The better question is: what is your wife’s state of residency? Please see this FAQ on military spouse
residency, especially the Joe and Mary example:
https://ttlc.intuit.com/replies/4776822
If your wife established residency with you
in Tennessee, she is now a Tennessee resident and would not need to file a
Louisiana return (and since Tennessee does not have a state income tax, she
wouldn’t file a Tennessee return either).
If your wife did not have a Tennessee residency with you,
she has become a Louisiana resident if she was there for more than 183 days. And if she is working in Louisiana while
living in another state (Texas or Mississippi, for example), she would file a nonresident Louisiana return.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
