If you have a simple return and want to file for free you can fill out the forms by hand. Here are some basic forms.....
Here is the 2021 1040 return
https://www.irs.gov/pub/irs-prior/f1040--2021.pdf
or if you want bigger type use 1040SR for Seniors,
https://www.irs.gov/pub/irs-prior/f1040s--2021.pdf
2021 1040 Instructions
https://www.irs.gov/pub/irs-prior/i1040gi--2021.pdf
2021 EIC and Tax Tables
https://www.irs.gov/pub/irs-prior/i1040tt--2021.pdf
Schedules 1-3
https://www.irs.gov/pub/irs-prior/f1040s1--2021.pdf
https://www.irs.gov/pub/irs-prior/f1040s2--2021.pdf
https://www.irs.gov/pub/irs-prior/f1040s3--2021.pdf
