To add gambling losses using TurboTax:
1. Sign In
or Open TurboTax
2.
Select "Take me to my return" (Online)
3.
Select "My Account" (top
right of the screen Online)
4.
Select "Tools" (Online)
5.
Select "Topic Search" (Online)
and "Search Topics" (center top of screen
on TurboTax Desktop)
6.
Type "gambling losses" and
press "enter" (Online) or "ok" (Desktop) (**)
7. Continue to answer the interview questions.
(**) Gambling losses are limited to the amount
of recorded gambling winnings which can be proven - from the current year)
See FAQ about gambling loss (limitations and itemized deductions.
https://ttlc.intuit.com/replies/3301128