Hi,
I am married to foreign spouse since August 2018, i filled my 2018 return as single . now i came to know that i should file as married filling jointly by claiming my foreign spouse as resident alien for tax purpose, for that purpose i need Individual Taxpayer Identification Number (ITIN) for my spouse. as per IRS i can send W7 with form 1040.
Ideally i should be sending w7 with 2020 tax return, but i am out of time to amend 2018 to get maximum credit.
my question : Can i send w7 for my wife with 2018 Amend 1040X.
https://www.irs.gov/individuals/international-taxpayers/nonresi[product key removed]e#:~:text=If%20y...
