Can i efile if i already mailed

If you've already mailed your tax return, you can't e-file it. Once you've mailed your return, it's considered "filed" and you can't change your filing method.

However, if you're experiencing a situation where you need to make changes to your return, you can contact the IRS to request an amended return (Form 1040-X). You can do this by:

  1. Calling the IRS at 1-800-829-1040 (individuals) or 1-800-829-4933 (businesses)
  2. Visiting an IRS office in person
  3. Using the IRS's online system, "Amended Return" (available on the IRS website)

Keep in mind that you'll need to provide a valid reason for the amendment, and you may need to provide additional documentation to support the changes.

If you're looking to make changes to your return before it's processed, you can try to contact the IRS to see if they can assist you. However, if your return has already been processed, you'll need to wait until next year's filing season to make changes.

It's always a good idea to double-check your return before mailing it to ensure everything is accurate and complete. If you're unsure about any aspect of your return, consider consulting with a tax professional or using tax preparation software to help you navigate the process.