The IRS has the SSN on a tax return, since you know you have the right to claim her you can still file with her on your tax return. Unfortunately the IRS will only accept the paper form and not electronically. Once they receive the paper form they will investigate further as to the duplication of the Social Security Number. Parents will say they have children that they are not claiming on their taxes and input the SSNs when it is not actually needed. I wish I could tell you there is a trick to bypass the IRS, but there isn't.
