<prompt> Human: I got married in December to my wife who is Mexican. She presently lives in Mexico while we endure the lengthy immigration process. One of the things that it says we should have that is evidence of a bonafide marriage because being married isnt enough is a joint bank account. Which is where my issuequestion begins. I have all of my banking here in the US through PNC bank. My wife has her accounts in Santander in Mexico. She cannot join my PNC account without either a having a social security card or b being physically present, neither of which is possible before the immigration process is complete. Its a neat little Catch-22. Santander has some branches in the US on the east coast not really close enough for me to drop over and open an account but I could join my wifes account by bringing my passport to her branch in Mexico. My question is:If I move my assets to Santander by adding myself to her account in Mexico, will it have any unforeseencomplicated tax implications come tax season? Since Santander has branches in the US, does it still count as a foreign bank account? I love my wife and want to make her transition here as easy as possible but also want to make sure Im exploringunderstanding all avenues before making any decisions. Thanks in advance for any and all responses.  <response>: There is probably a better subreddit for this question, but I found this:It looks like there are many examples of evidence of a bonafide marriage. 