Legal fees related to whistleblower claims or unlawful discrimination claims are deductible on Form 1040.
To enter the fees so that they appear on Line 24K of Schedule 1, in TurboTax Desktop,
- Select Forms in the top right
- In the left column (Forms in My Return) tap Schedule 1
- Highlight line 24h and tap the magnifying glass
- Scroll up to the Other Adjustments to Income Smart Worksheet between lines 23 and 24
- Enter your amount on line K
See the discussion in this thread for more information.