I just called the FBAR helpline, and am somewhat more confused than when I started. My bank accounts are joint accounts with my UK citizen husband, and the money in them is mainly from his earnings, as I am not working. According to the person I spoke to, my husband is the principal owner of the accounts, and his information should go in Part I of the form. He does have a SS number, as he worked in the US for several years, but he has no current tax obligation to the US. So, is this correct - his name and info go in Part I, and my info goes in Part III, where I report the joint accounts? I'm confused because Part III section 26, asks for the ID of the principal joint owner (my husband?). Any help would be appreciated.