What is Cost Segregation?
Cost segregation is a tax strategy that accelerates depreciation deductions on real estate by reclassifying building components into shorter recovery periods. Instead of depreciating an entire building over 27.5 years (residential) or 39 years (commercial), a cost segregation study identifies components that qualify for 5-year, 7-year, or 15-year depreciation, front-loading deductions and reducing taxable income in the early years of ownership.
What gets reclassified
5-year property: Carpeting, appliances, certain fixtures, decorative elements, specialized electrical.
7-year property: Office furniture, certain equipment, security systems.
15-year property: Land improvements — parking lots, sidewalks, landscaping, fencing, site drainage.
Typically, 20-40% of a building's cost can be reclassified into these shorter categories.
Financial impact
On a $1 million property where 30% ($300,000) is reclassified to 5-year property, the first-year depreciation jumps from approximately $36,000 (standard) to potentially $96,000+ (with bonus depreciation). That additional $60,000 deduction saves $15,000-$22,000 in taxes for someone in the 25-37% bracket.
When cost segregation makes sense
Generally recommended for properties with a cost basis above $500,000 (the study itself costs $5,000-$15,000, so the benefit must exceed the cost). Most valuable for: new construction, major renovations, recently acquired properties, and properties where the investor has significant taxable income to offset.
For investors
Cost segregation is one of the most powerful tax strategies in real estate. Combined with bonus depreciation (which allows 100% first-year deduction of short-lived assets), cost segregation can generate paper losses that offset rental income and even other income for real estate professionals who meet IRS criteria.