If you want to file for free you can fill out the forms by hand. Here are some basic forms.....
Here is the 2019 1040 return
https://www.irs.gov/pub/irs-pdf/f1040.pdf
or if you want bigger type use 1040SR for Seniors,
https://www.irs.gov/pub/irs-pdf/f1040s.pdf
2019 Instructions https://www.irs.gov/pub/irs-pdf/i1040gi.pdf
2019 EIC and Tax Tables https://www.irs.gov/pub/irs-pdf/i1040tt.pdf
2019 Schedules 1-3
https://www.irs.gov/pub/irs-pdf/f1040s1.pdf
https://www.irs.gov/pub/irs-pdf/f1040s2.pdf
https://www.irs.gov/pub/irs-pdf/f1040s3.pdf
