Deductions & credits

Depending upon how you input it, it'll show up as Sale of Business Property.  To get there:

1.  Click Federal Taxes across the top.

2.  Click Wages & Income across the top.

3.  Click I’ll choose what I work on.

4.  Scroll down to Business Items.

5.  Click Start or Update by Sale of Business Property.

You can look at/change your cost on the screen below.