He should file his own return and indicate that someone else can claim him as a dependent.
Then you will file a return claiming him as your dependent.
Log into TurboTax
- On the main menu select My Info
- Click on your name
- You will see your information
- Click Edit
- Continue the interview until you get to
- About your household
- Do you have any dependents?
- Select yes.
- How many dependents do you have?
- Enter the total number
- Your personal page will come up, and it will have an option to list dependents.
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