Mailing address different from residence

[wowdad]

Different states. What do I choose

[rjs]

I would use your residence address, as long as you can receive mail there. The states get tax return information from the IRS. If you file with the address in the state that you don't live in, that state will think you should have filed a return there, and will start sending you notices. You'll have to convince them that you don't live in the state that's on your tax return. But if the IRS needs to contact you, they are going to mail a notice to the address that's on your tax return, so you want to be sure you will get it.

If your mailing address is a PO box, the IRS says not to use a PO box unless the post office does not deliver to your residence address.

[wowdad]

It's more complicated. How can we communicate privately

[rjs]

We can't communicate privately. And this is a public web site. When you posted your question you indicated that you are using TurboTax Free Edition. TurboTax does not provide telephone support for the Free Edition unless you add the PLUS package, which you have to pay for. Maybe your best bet is to discuss the situation with a local tax professional. Or you could call the IRS at 800-829-1040.