Use Form 4797 to report: The sale or exchange of property. The involuntary conversion of property and capital assets.This publication explains the tax rules that apply when you dispose of property, including when you dispose of only a portion of certain property. Don't convert something and then claim a large loss. A taxable asset purchase allows the buyer to "step up," or increase, the tax basis of the acquired assets to reflect the purchase price. Assets need to be filled out? • Depreciation Recapture Issues. 2. This manual provides a close-up look of how to report dispositions of business-use assets on Form 4797. An asset sale will likely result in a combination of gain taxed at both ordinary and capital gains rates, depending on the nature of the individual assets.