After you file
It depends if he had sufficient income to report. If he did not have enough income to require filing a return, then he needs to report direct deposit information to the IRS. However, the portal is not launched yet. TurboTax has a registration so that he can be notified. Go to this link to sign up and look for the registration: TurboTax Updates for Stimulus Payment Registration. It will look like the screenshot below.
For additional details from the IRS, click this link: IRS Coronavirus Tax Relief and Economic Impact Payments
