After you file

 

 

If you filed, it is like dropping it into a mailbox - you cannot get it back.

 

You'll have to wait until your return is either accepted or rejected.  IRS just posted that they will not start processing until 2/12 so you will have to wait ...

  • If rejected, you can make any necessary changes.
  • If accepted, you'll need to amend your return
  • To avoid unnecessary delays, do not amend until your original return has been fully processed.  You will need to print and mail the amendment.  
  • Allow 8-12 weeks for processing.

See this TurboTax FAQ for help with amending.

You can check the status of your amended return here, but allow 3 weeks after filing for it to show up.