it depends on what you are amending. however, if you printed out the returns then all the forms and schedules necessary to recreate 2019 should be present. if you need more detail you might be able to get a transcript from the IRS.
https://www.irs.gov/individuals/get-transcript
Request Online
What You Need
To register and use this service, you need:
- your SSN, date of birth, filing status and mailing address from latest tax return,
- access to your email account,
- your personal account number from a credit card, mortgage, home equity loan, home equity line of credit or car loan, and
- a mobile phone linked to your name (for faster registration) or ability to receive an activation code by mail.
