If you are using the TurboTax Deluxe desktop CD/Download edition you can report both your income and expenses for self-employment using that edition. So it will accept a 179 deduction.
Just a note though, when going through the program and you are entering your SE income and expenses the program will recommend that you upgrade to the Home & Business Edition. That is Only a recommendation and is Not required.
@handbhart wrote:
Where do you do this?
Using the Deluxe desktop edition -
Click on Federal Taxes
Click on Wages & Income
Click on I'll choose what I work on
Scroll down to Business Items
On Business Income and Expenses (Sch C), click on the start button