Going back to 2015
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Level 6

Going back to 2015

Someone I know hasn't filed taxes since 2014 and would like to catch up starting with his 2015 federal and California returns. He's not, shall we say, tax savvy, and would like me to do his back taxes.


I understand it's too late for him to get a refund for the earliest years. (I have no idea whether he owes or was owed.) But I can still use those old versions of TT Desktop for Windows to prepare his paper returns, right? I just reinstalled TT2015 Premier on my Win10 laptop and Federal seemed to install and update just fine. I haven't tried to load CA yet.

6 Replies
Level 15

Going back to 2015

The software for 2015 and 2016 is no longer supported.  You cannot get updates for it and you would be unlikely to get accurate results if you try to use it.  And...as you already know, refunds for those years have been forfeited.  If tax is owed--it still must be paid.  You could get the paper forms and prepare them by hand.



Form 1040  https://www.irs.gov/pub/irs-prior/f1040--2015.pdf

Form1040 Instructions  https://www.irs.gov/pub/irs-prior/i1040gi--2015.pdf

Form1040A  https://www.irs.gov/pub/irs-prior/f1040a--2015.pdf

Form 1040A Instructions  https://www.irs.gov/pub/irs-prior/i1040a--2015.pdf

Form 1040EZ   https://www.irs.gov/pub/irs-prior/f1040ez--2015.pdf

Form 1040EZ Instructions  https://www.irs.gov/pub/irs-prior/i1040ez--2015.pdf



Form 1040  https://www.irs.gov/pub/irs-prior/f1040--2016.pdf

Form 1040 Instructions https://www.irs.gov/pub/irs-prior/i1040gi--2016.pdf

Form 1040A https://www.irs.gov/pub/irs-pdf/f1040a.pdf

Form 1040AInstructions https://www.irs.gov/pub/irs-prior/i1040a--2016.pdf

Form1040EZ https://www.irs.gov/pub/irs-prior/f1040ez--2015.pdf

Form1040EZ Instructions  https://www.irs.gov/pub/irs-pdf/i1040ez.pdf




Remember to prepare your state return as well—if you live in a state that has a state income tax.




Online preparation and e-filing for 2017, 2018 and 2019 is permanently closed.

To file a return for a prior tax year

If you need to prepare a return for 2017, 2018, or 2019 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.







**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
Level 15

Going back to 2015

Doubt you will get the state programming for anything earlier than 2017 ... in fact surprised the federal update happened.    All you can do is get the forms & instructions  off the state website. 

Level 6

Going back to 2015

I was also surprised the update happened, but I captured the progress. This leads me to believe I could actually use it.



Opus 17
Level 15

Going back to 2015

The main point is that for any version that is not officially supported, it is your responsibility to make sure that the program is updated and correct and that the forms are all correct. The accuracy guarantee won’t apply.


but if you think the program is usable, go ahead, it’s your risk.

*Answers are correct to the best of my ability at the time of posting but do not constitute legal or tax advice.*
Level 6

Going back to 2015

2015 State failed to download. It's expired.


It's a bummer, because I had all these old versions installed & updated on my old PC, which I have since replaced.

Level 15

Going back to 2015

be proACTive and visit one of the other TAX  software vendors, where you will see they go back earlier than that, and are still charging 2015 prices for the 2015 program.

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