<prompt> Human: Our situation: We live in California We have a 4 month old baby born May 2014 I work full-time She is not working, stay at home mom Im making a little more than 100k a year - Maxed out Roth IRA, and 401k We rent, and have little or no additional tax write-offs I dont want to get married dont judge, as this is an old tradition of commitment. Is there any way we can we file income taxes jointly, without the religious tradition of commitment? Any good advice is appreciated, thanks!  <response>: You have to be married to file as married.If you are committed to each other, marriage is how you make that legal. It doesnt have to be religious. 