I'm not sure where to enter the w-2g form

To enter in your W-2G in TurboTax Online take the following steps: 

1)    Sign into TurboTax Online

2)    Continue your return by click Taxes > Tax Timeline > Take me to my return.

3)    Click on the Federal Taxes tab (Personal depending on version)

4)    Click on Wages & Income sub-tab (Personal Income depending on version)

5)    Click Jump to full list or Show all income (if needed)

6)    Scoll down to Less Common Income and click on Show more.

7)    Click Start/Revisit next to Gambling Winnings.

😎    Follow the prompts to enter in your W-2G.

For additional information please see the FAQ article below. https://ttlc.intuit.com/replies/5122514