If I forgot to mail in my 2016 tax return last year (owed refund), should I wait until after 2017 is processed and refund received before mailing 2016? Or mail 2016 now?

[Tonita]

You can mail it in now.

[VolvoGirl]

And to efile 2017 put down 0 for your 2016 AGI since you didn’t file it last year on time.