It's too late to use Turbo Tax for 2016 or to claim a refund from the IRS.
2018
Here is the IRS 2018 Form 1040
https://www.irs.gov/pub/irs-prior/f1040--2018.pdf
And instructions https://www.irs.gov/pub/irs-prior/i1040gi--2018.pdf
2018 Tax and EIC Tables https://www.irs.gov/pub/irs-prior/i1040tt--2018.pdf
IRS 2018 Schedules 1 thru 6 (only if needed)
https://www.irs.gov/pub/irs-prior/f1040s1--2018.pdf
https://www.irs.gov/pub/irs-prior/f1040s2--2018.pdf
https://www.irs.gov/pub/irs-prior/f1040s3--2018.pdf
https://www.irs.gov/pub/irs-prior/f1040s4--2018.pdf
https://www.irs.gov/pub/irs-prior/f1040s5--2018.pdf
https://www.irs.gov/pub/irs-prior/f1040s6--2018.pdf
2017
Here are some blank forms & instructions for 2017
1040 https://www.irs.gov/pub/irs-prior/f1040--2017.pdf
Instructions https://www.irs.gov/pub/irs-prior/i1040gi--2017.pdf
1040A https://www.irs.gov/pub/irs-prior/f1040a--2017.pdf
Instructions https://www.irs.gov/pub/irs-prior/i1040a--2017.pdf
1040EZ https://www.irs.gov/pub/irs-prior/f1040ez--2017.pdf
Instructions https://www.irs.gov/pub/irs-prior/i1040ez--2017.pdf
2017 Tax Tables https://www.irs.gov/pub/irs-prior/i1040tt--2017.pdf
Publication 17 Tax Guide for 2017 https://www.irs.gov/pub/irs-prior/p17--2017.pdf
