Deductions & credits
You don't enter the loss from a personal vehicle sale on your tax return, you only report if you sold it as a gain.
If you sold your business vehicle, it is reported on Form 4797 Sales of Business Property, which flows to Schedule D - Capital Gains and Losses.
Refer to the TurboTax Help article How do I edit the sale of a business property (Form 4797) for navigation instructions and select Sales of business or rental property that you haven't already reported to report your business vehicle sales.
