if your parents prepared their return after yours using the same account your return is permanently gone. an account is only good for 1 return -the last one prepared. an e-mail address can be used on up to 5 accounts. if you are looking for your 2018 adjusted gross income so you can efile 2019, then you may be able to register at the IRS website to get a transcript of your '18 return which will have the AGI number
https://www.irs.gov/individuals/get-transcript
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 with your name on the account.
What You Get
- All types are available online
- View, print or download your transcript
- Username and password to return later