I did not add in the information from my W2 for 2017, before filing my taxes, what do I need to do know that they have been filed without the correct information?

If you have already e-filed or mailed the return, then you will need to wait until the IRS has accepted or rejected that return before you can make any changes.  

• If they reject it, then just make the needed changes and re-submit the return.  
• If they accept it, then you will need to wait until you have received your refund and then amend that return to make changes. You will need to send in any forms that caused the need for an amendment (Original 1040 Form, new 1040X Form and the reason for making the change). Print, sign and mail your forms to the IRS.

Click here for instructions for amending a return.