I got a question and don't even know where to start looking for an answer to this. Any insight would be appreciated.
Taxpayer is noncitizen in the US on an H-1B visa. His wife is also not a US citizen or US resident, and is not living with her husband. Wife has no US income, and does not have a Social Secureity (or any other TIN) number.
Taxpayer wants to know if he can file a joint return. My sense is that the answer is "no" but I don't know what that's based on, so I don't want to give information that may turn out to be incorrect.
Any thoughts?
Thanks.