When selling or otherwise disposing of a plant asset, a firm must record the depreciation up to the date of sale or disposal. In this article, we discuss what asset sales are, how they work and how to calculate a loss or gain because of an asset sale.Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity. You will need to allocate the amount reflected on form 8594 among all the assets. A typical method is to allocate the proceeds based on the original cost. MCC's comprehensive curriculum and hands-on training helps you prepare to transfer to a four-year institution or start a career in business accounting. When we're talking about the gain or loss of the sale of an asset we need to be looking at net book value at the time of the sale. Each transaction should be evaluated. SBM-110 Accounting for Small Business (4 Credits). Focuses on accounting as applied in the small business setting.