If I don't know last year's AGI, can I file my mail without having the correct AGI?

[DallasM · Accepted solution]

Yes, by all means you can still file your retunr by mail and have it go through successfully. 

In fact, if a person doesn't remember their AGI or cannot obtain it, the way to get around that is to mail your return in. Paper mailed returns do not require your AGI.