Cost Segregation Explained: How It Works, Why It Matters, and Why It Is Not Just for Big Buildings
Most real estate owners know they can depreciate a building, but many still treat the entire structure as one long-life asset. Under MACRS, residential rental property generally uses a 27.5-year recovery period and nonresidential real property generally uses a 39-year recovery period, while land itself is not depreciable. Cost segregation asks a more precise question: are all parts of the property really “building” assets, or do some belong in shorter-life categories such as 5-, 7-, or 15-year property? In other words, cost segregation is not about inventing deductions. It is about classifying assets correctly and accelerating deductions that otherwise sit trapped in the long-life building bucket.


