I filed my taxes and it got approved but then I received another tax paper from a previous employer. I added it on, how do I know if I did it correctly?

[KatherineC · Accepted solution]

If your e-file was accepted, you will need to amend your return.  Go to the link below and click on “2016” in blue print.  This will help you start the amended return.  You can then make any changes you need to make (i.e. add the income from your previous employer).

You will have to print the amended return, sign it, then file the amended return by mail.

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

If your e-file is rejected, you can simply go back in, add the additional income and fix the rejection error, then refile your return.