To input your Business Expenses on TurboTax Online:
Open your TurboTax return. Select the "Find" icon at the top of the page.
In the search bar, typeBusiness or Professional Activities and selectGo.
On this page, if you have already entered your business information, you will see your business listed. If not, you will need toEnter a New Businessand input the required information for your business. If you see your business listed, select the "Edit"option.
This will bring you to theReview Your Self-Employment Income and Expensespage. SelectBusiness Expensesfrom the list.
The following pages will ask you questions related to your business expenses. Answer the questions and pressContinueafter each page to save your work.