Where do I enter Schedule C, line 18 Office Expense?

[Barnabas]

Why are the Turbo Tax expense categories different from the IRS Schedule C categories. My accounting software is based on the IRS categories, so how do I convert this to the non-standard TurboTax categories?

[DianeW777]

You can add office expenses on your Schedule C by selecting that category when you are working on the business expense section of your return. All categories are included in TurboTax. 

1. Open your return in TurboTax Online or TurboTax Desktop
2. Search (upper right) > Type schedule c > Click the Jump to... link
3. Edit beside your business > Add expenses for this work > Scroll to select Office expenses > Continue
4. Edit beside Office expenses > enter your description and amount