I am a permanent resident, and my wife lives abroad (never been to US). So as far as i am understanding, in other for me to file tax jointly, she need ITIN. Then i need to file tax and send by mail to IRS Austin Service Center along with her "w-7" Since i didn't have her ITIN for now, what should i put there?
Also do i need to send any other document with w-7 beside her foreign passport for identification and her birth certificate?
Any suggestion will be very helpful, thanks.
