If you purchased a retail copy of TurboTax, you have the ability to create five different Federal tax returns and file them electronically (e-File). If the TurboTax version you purchased included e-filing your state's return also AND you used that function, your son will have to file his state return in paper form (mailing it to your state's tax office). This is the most likely scenario.
Just start the app up again and select New Return to create a new filing. Make sure your son drops his state return in the mail well before the pickup time. Sometimes, the mailperson is early.
Best wishes.
