In order to claim vehicle expenses like gas and oil or mileage, you need to add a vehicle to your business; here are the steps in TurboTax Online:
- Navigate to Federal > Wages & Income > Self-employment income and expenses
- Edit your business
- Choose add expenses for this work
- Choose Vehicle and Continue
- Vehicle now appears in the list of expenses, choose the pencil icon to the right of vehicle expenses
- Answer the interview questions about the vehicle, and enter the related expenses
