Since my ex and I have been divorced he's been claiming my son who is now 14 and I've been cleaning my daughter who is now 19. Last year 2020 when we filed we switched kids so I can get the college tax breaks since I had a 529 fund. I don't think he's eligible for the tax credit because he makes too much. Is there a way to switch our dependence around again after filing so I can get that $300. I also don't think he qualified for the last stimulus for my daughter who's in college and I was wondering if there's a way to go back and fix that as well
