2017 can only be paper filed and mailed to the IRS. 2017 e-file and online ended on October 15, 2018.
You can purchase the 2017 software here:
https://turbotax.intuit.com/personal-taxes/past-years-products/
Or download blank 2017 forms from the IRS and manually fill them out.
https://www.irs.gov/pub/irs-prior/f1040--2017.pdf
https://www.irs.gov/pub/irs-prior/i1040gi--2017.pdf
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
