<prompt> Human: Hey guys. So my dad filed my sisters 24yrs taxes, with only one W-2, since she has the other documents without her permission. She has asked him where the return is going, but he hasnt responded. Heres the back story on their relationship, briefly; My sister and myself dont have a good relationship with our dad. That being said, they had a HUGE falling out in December, which ended up with her being kicked out of his place, being told she was no longer his daughter and never to contact him again. Apparently, she signed a contract with him before this blow up, stating that she will give him her tax return to pay off the car he purchased 2000 for her, which ended up dying. Major clause in the contract, she still has to pay, even if its dead.My question, given that contract, he still cant file her taxes for her right? I think she can claim fraud for these actions, and I sent her the links from the IRS site regarding someone filing taxes with your SSN Does she have a case if she files fraud on him? This can not be legal and appears to me to be identity theft.  <response>: Yes it is illegal for anyone but your sister to file her taxes. Your dad would have had to forge her signature which is illegal. Definatly call the IRS and report this. 