An asset sale is the purchase of individual assets and liabilities, whereas a stock sale is the purchase of the owner's shares of a corporation. Generally, a stock sale is better for the seller and an asset sale is better for the buyer.In a stock sale, the buyer acquires equity from the target company's shareholders. Because of the corporation's S status, both a stock sale and an asset sale generally result in single taxation at the shareholder level. Learn the tax implications for each type of sale. A stock sale involves the purchase of the entire business, including all assets and liabilities. This way, the buyer acquires ownership of the business. In an asset sale, the buyer's basis for depreciation is the allocated purchase price of the transferred assets. A stock purchase is a complete purchase of a company, including all the assets and liabilities. Stock purchases thus have different tax outcomes.