No one has access to your spouse's tax return. We cannot tell you--- and the IRS will not tell you -- what she entered on her tax return. What you can do is prepare your own correct tax return and file it by mail. You have not mentioned whether your child lived with you or with your spouse. The IRS cares about physical custody. If both of you file returns claiming your child as a dependent, the IRS will sort out the duplicate use of the child's Social Security number. Be prepared to prove that the child lived with you if you have been the custodial parent -- eventually the IRS will send you a letter.
We do not know if she itemized her deductions or whether she tried to use the property tax on a home.
We do not know what you are trying to ask in regard to "retirement taxes." If you have a retirement plan through your employer---like a 401k -- that information is entered when you enter the data from the boxes on your W-2. You do not enter it anywhere else. If you did not take money out of a retirement account, then there is nothing else to enter about retirement.
If you and your spouse are in the process of divorcing, then contact your own attorney for help with knowing what your spouse entered on a tax return.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
