TurboTax does not support tax year 2016.
You may find the 2016 TurboTax software available on Amazon. However, there is no guarantee that you will be able to get any updates to the software or able to download a state program.
If you are filing a 2016 tax return for a tax refund, the refund will not be paid since the time to file for a 2016 refund has expired as of October 15, 2020. However, if you have taxes owed then you need to file as the late filing and late payment penalties plus interest continue to accrue.
You can use a local tax professional to assist you in completing the 2016 return or you can go to the IRS website for free federal forms, schedules and instructions for prior tax years - https://apps.irs.gov/app/picklist/list/priorFormPublication.html
Online preparation and e-filing for 2016, 2017 and 2018 is permanently closed.
To file a return for a prior tax year
If you need to prepare a return for 2016, 2017, or 2018 you can purchase and download desktop software to do it, then print, sign, and mail the return(s)
You may also want to explore purchasing the software from various retailers such as Amazon, Costco, Best Buy, Walmart, Sam’s, etc.
Remember to prepare your state return as well—if you live in a state that has a state income tax.
When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s. Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS/state received the return.
Federal and state returns must be in separate envelopes and they are mailed to different addresses. Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.
Note: The desktop software you need to prepare the prior year return must be installed/downloaded to a full PC or Mac. It cannot be used on a mobile device.
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.
Note: Even if the form shows a refund, that refund has been forfeited and you will not receive the refund. If you owe you still must pay.
If you cant buy or install the Desktop program you can fill out the blank forms for free. Here are some basic forms & instructions for 2016
2016 Tax Tables https://www.irs.gov/pub/irs-prior/i1040tt--2016.pdf
Publication 17 Tax Guide for 2016 https://www.irs.gov/pub/irs-prior/p17--2016.pdf