If the IRS has not received your 2016 return, you may print and mail it in. You will not be able to e-file your 2016 return. If you used TurboTax to prepare your 2016 return, you can log into your TurboTax account and print the forms from the section "Your tax returns & documents."
To check the status of your return, you may visit the IRS website at the link provided here: IRS
View Your Tax Account
