I completed my taxes last year with turbotax, however the taxes were done late, and needed to be mailed to the IRS, but never were

[JessicaG · Accepted solution]

You can still print and mail your 2015 return.  So long as you do not owe taxes, there is no penalty for filing late, and you can file up to 3 years late.

If you plan to e-file this year, you would put your AGI as $0 as that is what the IRS has on file for you (even though your AGI was not $0).