You can only file your tax year 2017 tax return using 2017 tax software.
If you need to prepare a return for 2014, 2015, or 2016 you
can purchase and download desktop software to do it, then print, sign,
and mail the return(s): https://turbotax.intuit.com/personal-taxes/past-years-products/
[Edited 3/14/18 | 5:58pm]
