Thanks for your answer. But I read that for 2020, form 1040x can be filed electronically. Why do you say I have to mail it in? Also, can I mail her 1040 return in now or do I have to wait until I get my refund and file my 1040x? Before my 1040x is processed, won't the IRS reject her return because I claimed her and she says she wasn't claimed?
