You will need to log into the account that you used last year and you should find the information you need there.
How do I recover my account?
If you still have access to the email that you used to create the account you can use our account recovery page: https://myturbotax.intuit.com/account-recovery/ to see about finding the user ID to help you access your account.
OR,
Once you have the user ID you can reset the password and get access to the account (
https://ttlc.intuit.com/questions/1901486-how-many-turbotax-accounts-do-i-have).
