Cost Segregation is a technique used to expedite depreciation for investment properties by separating tangible personal property and land improvements, which are typically grouped as real property. This reclassification allows personal property and land improvements to be categorized as 5, 7, or 15-year property instead of the standard 27.5 or 39-year property. While the total amount of depreciation remains unchanged, Cost Segregation accelerates it by reducing the recovery period of the property. This method helps property owners increase cash flow, lower tax liabilities, and claim loss deductions when a building component is replaced before fully depreciating.