If you want to prepare them by hand on paper forms to mail in here are the forms.
2017
https://www.irs.gov/pub/irs-prior/i1040gi--2017.pdfhttps://www.irs.gov/pub/irs-prior/f1040--2017.pdf
https://www.irs.gov/pub/irs-prior/f1040a--2017.pdf
https://www.irs.gov/pub/irs-prior/i1040a--2017.pdf
https://www.irs.gov/pub/irs-prior/f1040ez--2017.pdf
https://www.irs.gov/pub/irs-prior/i1040ez--2017.pdf
Each one has to be mailed separately. Do not put both years in the same envelope.
If you need state forms you will have to get them from your state's site:
https://ttlc.intuit.com/questions/1901670-how-do-i-contact-my-state-department-of-revenue
2018 Form 1040, Schedules and Instructions
https://www.irs.gov/pub/irs-prior/f1040--2018.pdf https://www.irs.gov/pub/irs-prior/i1040gi--2018.pdf2018 Tax and EIC Tables https://www.irs.gov/pub/irs-prior/i1040tt--2018.pdfIRS 2018 Schedules 1 thru 6 (only if needed)Sch 1 : https://www.irs.gov/pub/irs-prior/f1040s1--2018.pdfSch 2 : https://www.irs.gov/pub/irs-prior/f1040s2--2018.pdfSch 3 : https://www.irs.gov/pub/irs-prior/f1040s3--2018.pdfSch 4 : https://www.irs.gov/pub/irs-prior/f1040s4--2018.pdfSch 5 : https://www.irs.gov/pub/irs-prior/f1040s5--2018.pdfSch 6 : https://www.irs.gov/pub/irs-prior/f1040s6--2018.pdf
