Cost Segregation Study 2026: Accelerated Depreciation Strategy for Investors

A cost segregation study is an engineering and accounting analysis that reclassifies components of a building from 39-year or 27.5-year depreciation categories into 5, 7, or 15-year classes. Accelerating depreciation creates larger deductions in early ownership years, reducing taxable income and improving after-tax cash flow for real estate investors.

How Property Components Are Reclassified

• ✦Personal property at 5 to 7 years: carpeting, appliances, specialty lighting, built-in fixtures, equipment
• ✦Land improvements at 15 years: sidewalks, parking lots, landscaping, outdoor lighting, fencing
• ✦Building structure at 39 years for commercial or 27.5 years for residential: roof structure, load-bearing walls, HVAC integrated into the structure
• ✦A study identifies the percentage of the total purchase price allocable to each depreciation class

Bonus Depreciation Phase-Down in 2026

The Tax Cuts and Jobs Act of 2017 established 100% bonus depreciation on qualified property placed in service through 2022. The bonus has been phasing down each year: 80% in 2023, 60% in 2024, 40% in 2025, and 20% in 2026. After 2026, bonus depreciation phases out completely under current law unless Congress acts to extend it. Investors seeking to maximize the benefit should place property in service in 2026 while 20% first-year bonus still applies.

When to Recommend a Cost Segregation Study

Studies make the most financial sense on commercial properties and multifamily buildings with a purchase price above $500,000. Study costs range from $5,000 to $15,000 depending on the size and complexity of the property. First-year tax savings typically exceed the study cost by a factor of 3 to 10 depending on the borrower's effective tax rate and the property type. Single-family buy-and-hold investors with minimal equity generally do not benefit enough to justify the cost.