Do you have to file tax jointly with your spouse when you apply for green card?

My wife and I went to the Tax place and the lady told us that we could maximize our return by filling seperately. Would it have an impact on the fact that we will be filling for my green card sometime soon?Do you have to file tax jointly with your spouse when you apply for green card?
Joint tax returns are useful to prove to immigration that you have a genuine marriage but if you have plenty of other documentation you don't need joint tax returns. It's not unusual for married couples to file separately if it's financially advantageous so you won't be the first couple to do this. Just make sure you have plenty other proof of your relationship. You can always back up your application with affadavits from people who know you both as a couple.Do you have to file tax jointly with your spouse when you apply for green card?
Think long-term. Do not file seperate because it'd be beneficial for you in the short run. Immigartion looks at all these records (even tough is not mandatory to file togeteher) to determine if the marriage is real and for the right reasons and not fake. File your returns together, that will help you a lot.