Get your taxes done using TurboTax

If you are using TurboTax Online you can go to "My Info" in your left panel of your screen.  Under "Your Household" your should be able to add your dependent.

If you have TurboTax Desktop, you will click on your  "Personal Info" tab, select "Continue", scroll down to "Dependents" and click on "Edit."

Your screens will look something like this:

In TurboTax Online

In TurboTax Desktop

Click here for How do I add or remove a dependent?