I forgot to add my son as a dependent and I am passed that site on TurboTax how do I do that?

If you need to revisit the Dependents section in TurboTax Online, here's what you do:

1. Open (continue) your return if you don't already have it open.
2. Search for personal information and then click the "Jump to" link in the search results.
3. Follow the onscreen instructions to add or remove a dependent.