Need to add interest income of $5,664.00 to already filed taxes. What do I do?

[Leonard · Accepted solution]

You will have to wait until the return is either accepted or rejected by the IRS.

If the return is rejected by the IRS you can add the missing income and refile your return.

If the return was accepted by the IRS then you will have to file an amended tax return using Form 1040X to add the missing income. 

The FAQ link below provides information on how to amend your tax return.  Please note that the IRS has not released the 2018 Form 1040X.  This link will be updated when the IRS has released Form 1040X.

https://ttlc.intuit.com/questions/1894381-how-to-amend-change-or-correct-a-return-you-already-filed