Last year, I filed head of household. On my tax forms, I did not add my husband or any info. This year, I am doing the same thing but when I run the smart check at the end, it keeps saying there is 1 error, asking me for his name and social. He does not have a social. He did over 10 years ago but he abandoned his green card and has been living abroad as a non-US citizen. I live in the US with my kids and we are ll citizens except him. Why is it asking me for his info and is there a way to by pass that?