Is it too late to file?

[Anonymous]

if you owe it's never too late to file.  if you are due a refund you forfeited the refunds for any year prior to 2016. if 2016 was properly extended you have until 10/15/2020 to file for the refund. if it wasn't extended then that refund is also lost.  there is an exception if you are carrying back a NOL from 2018 or 2017 for claiming an earlier year refund. 

[xmasbaby0]

If you are asking about filing your 2019 return, you will be able to e-file it up until October 15, 2020.  After that e-fling will close and a 2019 return will have to be printed, signed and mailed.  Any returns for tax years earlier than 2019 must be printed, signed and mailed--they cannot be e-filed.

If you are getting a refund, there is not a penalty for filing past the deadline.  If you owe taxes, the interest/penalties will be calculated by the IRS based on how much you owe and when they receive your return and payment. The IRS will bill you for this; it will not be calculated by TurboTax.

If you need to prepare a return for a tax year earlier than 2019 you have to purchase and download the desktop software to a full PC or Mac.  The online program is ONLY for 2019--no other year.

https://ttlc.intuit.com/questions/1900990-how-do-i-file-a-prior-year-tax-return