Once you've set up your business in TurboTax follow these steps:
- Choose the Business tab.
- Then select Start/Update next to Profit or Loss from Business.
- Select Edit next to the name of your business.
- Go to Business Expenses section to choose the appropriate category for your expense.
If you haven't set up your business yet, follow the instructions to do so. You'll then be able to enter your expenses in the Federal Taxes section.