I filled my taxes April 9. Do I need to mail anything to IRS?

[j-plolly2013]

I don’t get a refund nor do I owe.

[Opus 17]

In most cases you do not need to send documents to the IRS if you successfully e-file.  There are a few limited situations where you can e-file but must mail documents afterwards; if this applies to you, the program will tell you what to print out, and it will be on the cover page of your return when you download or print the PDF of your tax return.