To enter your home office expense along with other common business expenses:
- Search for Schedule C and select the Jump to link.
- If this is your first time entering info about your business, you’ll be asked some questions about your business. If you have already entered some info, click Edit next to your business.
- When you reach the Your (type of work) Business screen, scroll down to the Business Expenses section, then select Start next to Home Office Expense and follow the screens to enter your info.
- In the interview check I'll take the simplified deduction.
-follow this link for additional information-
The Home Office Deduction - TurboTax Tax Tips & Videos