IRS-Compliant Cost Segregation Study Services | O'Connor & Associates

Unlock significant tax advantages on your real estate investments with the IRS-compliant cost segregation services offered by O'Connor & Associates. Our engineering-based methodology allows property owners, investors, and developers to accelerate depreciation deductions by identifying and reclassifying components of a building into shorter life categories (5, 7, or 15 years). These shorter classifications let you reap earlier tax benefits on items such as HVAC systems, fixtures, parking lots, fencing, machinery, and more-rather than depreciating everything over a standard 27.5 or 39-year life period.

Whether you're acquiring, constructing, or renovating a commercial, residential, or mixed-use property, cost segregation can help you reduce your federal taxable income, maximize upfront deductions, and enhance cash flow-often in the six- to seven-figure range. O'Connor's process is designed to be streamlined and audit-ready:

Initial Review & Free Estimate: We assess your property and provide a cost-benefit estimate at no obligation.

Engineering Analysis: Our licensed engineers or appraisal specialists break down the property into components and identify eligible short-lifetime assets.

Report Delivery: Within days, we deliver a full IRS-attack-techniques-guide-aligned report, including depreciation schedules and support narratives.

CPA Collaboration: We work directly with your tax advisors to integrate the study into your returns, often via Form 3115 for a change-in-accounting method-no amended returns required.

Since 2025, 100% bonus depreciation has been permanently reinstated under the "One Big Beautiful Bill," allowing eligible assets to be fully written off in the first year. This makes cost segregation even more valuable, as it pairs powerfully with bonus depreciation to unlock greater immediate tax savings.