After you file

The stimulus payment was an advance credit from your 2020 tax return.  If you are eligible you will receive the credit on your 2020 federal tax return that you file in 2021.

The TurboTax software for tax year 2020, either the online editions or the desktop editions, are already set up to determine if you are eligible based on your personal information and the income you report on your 2020 tax return.