Cost Segregation

· 2 min read
Cost segregation is a tax strategy that reclassifies parts of your building into shorter depreciation schedules, letting you take much larger tax deductions in the…

Cost segregation is a tax strategy that reclassifies parts of your building into shorter depreciation schedules, letting you take much larger tax deductions in the early years of ownership.

Normally, a residential rental building gets depreciated over 27.5 years — one slow, steady deduction each year. But a cost segregation study breaks the property apart and says “the carpet is 5-year property, the parking lot is 15-year property, the appliances are 7-year property.” By reclassifying 20-40% of the building’s value into these faster categories, you front-load your depreciation deductions significantly.

How It Works

An engineering firm physically inspects (or reviews blueprints of) your property and separates every component into IRS depreciation categories:

  • 5-year property: Carpet, appliances, window treatments, landscaping
  • 7-year property: Furniture, specialty fixtures, certain electrical
  • 15-year property: Sidewalks, parking lots, fencing, land improvements
  • 27.5/39-year property: The building structure itself

On a $1 million apartment building, a study might reclassify $250,000-$350,000 into the faster categories. Combined with bonus depreciation (which allows 40-60% first-year write-offs on those reclassified assets, depending on the current bonus depreciation percentage), you could see $100,000+ in first-year deductions instead of the standard $29,000.

Who Should Do a Cost Segregation Study?

The general rule: it makes sense on properties worth $500,000 or more. Studies cost $5,000-$15,000 depending on property size and complexity. On a $500,000 property, the tax savings typically run $30,000-$60,000 over the first five years — easily worth the study cost.

It’s especially powerful for high-income investors who need to offset W-2 income. Real estate professionals (who spend 750+ hours/year in real estate activities) can use rental losses against their regular income without the $25,000 passive activity loss limitation.

The Catch

Front-loading depreciation means smaller deductions in later years. You’re not creating extra deductions — you’re accelerating them. And when you sell, depreciation recapture applies to everything you deducted. A 1031 exchange is the typical exit strategy to defer that recapture indefinitely.

Also, the IRS audits aggressive cost segregation studies. Work with a reputable engineering firm, not a discount service that rubber-stamps generic percentages. The study needs to be defensible.

Learn more about investment property financing with our mortgage calculator, and explore related tax strategies in the glossary.