Ask a CPA

You must know the basis of your property to determine whether you have a gain or loss from its sale or other disposition.
The basis of property you buy is usually its cost minus any depreciation taken.
However, if you acquired the property by gift, inheritance, or in some way other than buying it, you must use a basis other than its cost.

The amount you realize from a sale or exchange is the total of all money you receive plus the fair market value (defined below) of all property or services you receive.
The amount you realize also includes any of your liabilities that were assumed by the buyer and any liabilities to which the property you transferred is subject, such as real estate taxes or a mortgage.

Fair market value (FMV) is the price at which the property would change hands between a buyer and a seller when both have reasonable knowledge of all the necessary facts and neither has to buy or sell.
If parties with adverse interests place a value on property in an arm's-length transaction, that is strong evidence of FMV.
If there is a stated price for services, this price is treated as the FMV unless there is evidence to the contrary.

Depreciable assets such as buildings, land, machinery and equipment held more than one year are classified as (IRC) Section 1231 property.
The sale triggers a taxable event (gain or loss) that is reported on IRS Form 4797, Sale of Business Property, Part 1.

You may elect to report the sale on IRS Form 6252 which spreads the tax liability on the gain over the life of the installment period.
You may elect not to use the installment method if you want to report the entire profit in the current year of sale.

Selling expenses should be added to the cost amount and subtracted from the gross proceeds sales amount on IRS Schedule D or Form 4797.
This will help insure that the gross proceeds figure agrees with the 1099 slip that the IRS will receive.

Exchanges of partnership interests do not qualify as nontaxable exchanges of like-kind property. This applies regardless of whether they are general or limited partnership interests.

Generally, depreciable Real Property sold at a gain is considered either Section 1231 if depreciated post 1987or Section 1250 property if depreciated pre 1987 and reported on Form 4797
Bonus depreciation taken in years 2008 through the present year must be picked up as ordinary income
Gain attributable to depreciation pre 1987 is subject to recapture as ordinary income unless straight line method was used..
Gain on the disposition of Section 1250 property is treated as ordinary income to the extent of additional depreciation allowed or allowable on the property.
Depreciable Residential Rental Property sold at a loss is considered Section 1250 property reported on Form 4797 Part 1 if long term, and 4797 part 2 if short term.

Business assets are things of value that are used in a business. The assets are of two types:
Tangible assets, Cash and Receivables, Inventory like business vehicles, equipment, supplies, and buildings.
Intangible assets, like goodwill copyrights, patents, and trademarks.

In the sale of assets, all the tangible and intangible assets to be transferred to the buyer are normally separately identified. The buyer's assumption of liabilities, if any, must be carefully provided for.
The sale of assets is in contrast to the sale of stock, in which all assets and liabilities of the entity represented by the stock are transferred as part of the sale of stock. The entity remains in place, and so do the assets and liabilities. Only the ownership of the stock itself is changed in such a sale.