You enter a W2G in a different spot tjan a regular W2.
The easiest way to get to the W-2G screen is to search for W2G in your TurboTax program. (Use this exact search term even if you didn't lose any money gambling.)
Then, click the gambling losses link in the search results. You'll come to a screen, Tell Us About Your Winnings, where you can start working on your W-2G forms.
OR Go to
Federal Taxes
Wages and Income
Scroll way down to the end - Less Common Income (show more)
Gambling Winnings - Click the Start or Revisit button and follow the screens
