When you have a mismatch with a SSN and you have checked it to make sure it is correct--and checked to make sure that the date of birth you entered is also correct., then you cannot e-file. You cannot fix a SSN problem. Your return will have to be printed, signed and mailed. The IRS will sort it out.
When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s. Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS/state received the return.
Federal and state returns must be in separate envelopes and they are mailed to different addresses. Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.
**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.**