Most renovation costs are being depreciated over the wrong period. Component-level engineering analysis can produce accelerated deductions on a significant portion of every renovation dollar.
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When a commercial property owner invests $500,000 in a renovation, the default accounting treatment capitalizes the entire cost and depreciates it over 39 years — a first-year deduction of roughly $12,800.
A cost segregation study on the same renovation produces a first-year deduction that is often 10–20 times larger.
The reason is component analysis. Inside every commercial renovation are items the IRS classifies as personal property: new specialty and display lighting systems (5-year), security and access control upgrades (5-year), new flooring throughout (5-year), new kitchen or break room buildouts (5-year), audio/visual and technology infrastructure (5-year). Equipment and fixture infrastructure installed during the renovation qualifies as 7-year property.
These personal property components are identified and documented individually — each one assigned to its correct IRS recovery period with engineering justification. The result is a renovation where a substantial portion of the investment produces accelerated Year 1 deductions instead of being spread over 39 years of straight-line treatment.
These are the IRS-verified asset classes under Rev. Proc. 87-56 and supporting case law — confirmed across 16,000+ studies. Every component is documented to its correct recovery period with engineering justification, defensible under IRS examination.
Cost Seg America engineers renovation cost segregation studies with component-level analysis of every new installation within the renovation scope. Specialty lighting, security upgrades, flooring systems, kitchen buildouts, and technology infrastructure are 5-year and 7-year personal property identified from the contractor's invoices and scope of work. The remaining interior improvements qualify for 15-year treatment. Our engineering team traces every line item in the renovation budget to its correct IRS recovery period.
The IRS publishes a 347-page Audit Technique Guide on cost segregation. It identifies Approaches 1 and 2 as the preferred methodologies. Studies priced under $2,900 recover $60,000–$150,000 less per $1 million of depreciable basis than a fully engineered study. Cost Seg America has used IRS Approaches 1 and 2 on every study for 24 years. 125+ IRS audits. Zero losses. $0 ever returned. The methodology is why.
Cost segregation is an IRS-approved engineering analysis that reclassifies components of your renovation property from the default 39 yr straight-line depreciation schedule to three shorter recovery periods: 5-year personal property, 7-year personal property, and 15-year land improvements. Every component that qualifies for an accelerated schedule is individually identified, measured, and documented.
With 100% bonus depreciation active under OBBBA for property placed in service after January 19, 2025, every qualifying 5-year, 7-year, and 15-year component can be fully deducted in Year 1. Cost Seg America consistently recovers $60,000–$150,000 more in deductions per $1 million of depreciable basis than studies priced under $2,900.
The typical reclassification rate for renovation is 60–85% of the depreciable basis — the highest of any property category, because most renovation spending is on personal property components and qualifying interior improvements rather than structural. On a $1M renovation, this translates to approximately $351,500 in Year 1 federal income tax savings at a 37% rate.
The One Big Beautiful Budget Act (OBBBA) restored 100% bonus depreciation for qualified property placed in service after January 19, 2025. With 100% bonus depreciation, every qualifying 5-year, 7-year, and 15-year component identified in your study is fully deductible in the year you place the property in service. Your CPA determines your eligibility based on your individual tax situation, passive activity rules, and other factors.
Yes. The IRS allows you to go back and claim deductions you never took on prior-year properties using a Form 3115 change in accounting method — without amending previous returns. The catch-up deductions are taken entirely in the current tax year. Cost Seg America applies lookback analysis as standard practice. We partner with a trusted CPA specialist who handles the Form 3115 filing.
Cost Seg America's minimum qualifying property value is $200,000. Below this threshold, the engineering cost typically exceeds the tax benefit. Above $200,000, the fee-to-benefit ratio is consistently favorable and grows substantially with property value.
Unlimited audit defense means if the IRS examines your cost segregation study — this year, five years from now, or ten years from now — Cost Seg America responds. Written responses and phone representation. No time limit. No hour cap. No additional fee. Ever.
In 24+ years and 125+ IRS audits, Cost Seg America has never lost an audit and has never returned a dollar to the IRS.
Cost Seg America doesn't just find the deductions — we document them to survive the most demanding IRS examination.