1. Fixed assets are long-term tangible assets that are used in business operations and are not intended for sale. They include property, plant, and equipment. 2. A business derives service from fixed assets like land and buildings for many years. The capacity and efficiency of service delivery decreases over time except for land. Businesses significantly invest in fixed assets to maintain operating conditions or increase production capacity. 3. Fixed assets are mainly classified into four categories - land, land improvements, buildings, and equipment.