How to report the recapture of Sec. 179 expense for passthrough entities at both the entity and owner levels.When looking at form 4797, it put the sale price of the piece of equipment as a gain on sell of asset. When you dispose of an asset with a section 179 expense deduction, the disposition isn't included on Form 4684, 4797, 6252, or 8824. First enacted in 1958, Section 179 allows you to immediately deduct the cost of these assets during the year in which they are put into service. This publication explains how you can recover the cost of business or income-producing property through deductions for depreciation.