Business Owners who own their shop or yard
If you bought, built, or substantially renovated a shop, warehouse, or fenced yard, much of the structure and site work qualifies for accelerated treatment.
Tax Strategy Guide
Cost Segregation for Business Owners
A plain-English guide to accelerating depreciation, deferring taxes, and freeing up cash you can reinvest in the business — built for business owners, developers, and real estate owners.
What it is
An engineering-based way to depreciate a building faster
The IRS lets you depreciate commercial buildings over 39 years and residential rentals over 27.5 years. That schedule treats the entire structure as a single long-lived asset — which is fine for the IRS, but terrible for your cash flow.
A cost segregation study takes that one big asset and breaks it into the dozens of components actually inside it: site improvements, specialty electrical, decorative finishes, dedicated HVAC, removable fixtures, parking, fencing, and more. Many of those components legitimately depreciate over 5, 7, or 15 years instead of 39.
The result: large depreciation deductions pulled forward into the first few years of ownership, dramatically reducing taxable income — and the cash you send to the IRS — right when you need that capital most.
Quick example
A business owner buys a $2M shop and yard. A standard 39-year schedule produces about $51K of depreciation in year one.
After a cost segregation study reclassifies ~25% of the basis into 5 and 15-year property — combined with bonus depreciation — first-year deductions can exceed $400K, deferring ~$120K in federal tax at a 30% marginal rate.
Illustrative only. Actual results depend on property mix, in-service date, and your tax situation.
Who benefits
Business Owners and owners with real property on the books
Developers and builders
Spec builds, build-to-rent portfolios, and ground-up commercial projects almost always carry significant 5, 7, and 15-year components.
Real estate owners over ~$500K basis
Office, retail, multifamily, industrial, and short-term rentals all qualify. Higher basis and newer assets generally produce stronger returns.
How it works
The five-step process
01
Feasibility review
We confirm the property qualifies and model the rough tax benefit before you spend a dollar on the study.
02
Document and site analysis
Engineers review blueprints, purchase docs, and (when needed) walk the property to identify every reclassifiable component.
03
Cost reclassification
Construction costs are allocated into 5, 7, 15, 27.5, and 39-year buckets per IRS guidance and case law.
04
Tax filing or 3115 catch-up
Apply the new schedule on this year's return — or use Form 3115 to claim missed depreciation on a property you've owned for years, with no amended returns.
05
Audit-ready report
You receive a defensible study documenting methodology, citations, and component-level breakdowns to support the deduction.
06
Reinvest the cash
The deferred tax becomes working capital — equipment, hires, debt paydown, or the next acquisition.
Timing matters
Bonus depreciation is phasing down — act on the property you own now
Bonus depreciation lets you immediately expense a large share of the reclassified 5, 7, and 15-year property. It was 100% through 2022 and has been stepping down 20 points per year. The earlier you complete a study on a qualifying property, the more first-year deduction you capture before the bonus percentage drops further.
Already own the property? You don't need to amend prior returns — a Form 3115 lets you claim the entire missed depreciation as a single deduction in the current year.
Common mistakes
Where business owners leave money on the table
Assuming the property is too small — studies on $500K–$1M assets often pencil out cleanly.
Waiting until tax season — a study done in Q4 can still apply to the current year's return.
Using a generic 'rule of thumb' allocation instead of an engineering-based study (the IRS prefers the latter).
Forgetting renovation and tenant improvement costs, which often have very short class lives.
Skipping the catch-up: Form 3115 captures years of missed depreciation in one return.
Not coordinating with your CPA on passive activity rules and real estate professional status.
Wondering if your property qualifies?
We'll run a no-cost feasibility review on your shop, yard, or portfolio and model the first-year tax benefit before you commit to a study.