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Whether you’re seeking professional cost segregation services or looking to enhance your career within the industry, our member directory is your starting point.


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Your Trusted Directory for Cost Segregation Experts

Since 2006, ASCSP has connected individuals and companies with certified professionals who specialize in maximizing tax benefits through precise cost segregation studies. Use our user-friendly Member Directory to find a trusted specialist suited to your needs.

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What is Cost Segregation?

Cost segregation is the process of identifying property components that are considered “personal property” or “land improvements” under the federal tax code.



The primary goal of a cost segregation study is to identify all construction-related costs that can be depreciated over a shorter tax life (typically 5, 7 and 15 years) than the building (39 years for non-residential real property).


Personal property assets found in a cost segregation study generally include items that are affixed to the building but do not relate to the overall operation and maintenance of the building.

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Our Recent Posts

March 12, 2025
Authors: Alex Bagne, JD, CPA, MBA, CCSP, President – ICS Tax, LLC David Ontaneda, CCSP, Director of Cost Segregation Services – ICS Tax, LLC The IRS Large Business and International (LB&I) division has released updated Practice Units titled "Identifying a Taxpayer Electing a Partial Disposition of a Building" and "Examining a Taxpayer Electing a Partial Disposition of a Building." These resources aim to guide IRS examiners in recognizing and assessing instances where taxpayers elect a partial disposition of a building or its structural components. While these Practice Units serve as valuable tools for understanding tax concepts and specific transactions, they are not official pronouncements of law and should not be cited as such. Understanding Partial Disposition A partial disposition occurs when a taxpayer disposes of a portion of an asset rather than the entire asset. This can happen during renovations or improvements when parts of the building are replaced or retired. For example, a taxpayer upgrading to energy-efficient LED lighting, installing a new HVAC system, replacing an aging roof, or demolishing old tenant improvements can elect a partial disposition to write off the remaining value of the removed assets in the year of disposal. Electing a partial disposition allows taxpayers to recognize a loss on the disposed portion in the year the disposition occurs. This election is made by reporting the loss on a timely filed original tax return for the taxable year in which the disposition took place. No specific form or statement is required to be attached to the return. Importance in Tax Planning Electing a partial disposition offers several tax planning advantages: Accelerated Loss Recognition : Taxpayers can claim a loss on the disposed portion of the asset in the year of disposition, potentially reducing taxable income. Avoidance of Depreciation Recapture : By recognizing the disposition, taxpayers can prevent continued depreciation of the replaced component, which could lead to depreciation recapture issues upon the sale of the entire asset. Accurate Basis Tracking : It ensures that the asset's basis is adjusted to reflect the removal of the disposed component, maintaining accurate records for future depreciation and disposition calculations. Facilitating Partial Dispositions through Cost Segregation Cost segregation is a tax strategy that involves identifying and reclassifying components of a building into shorter recovery periods for depreciation purposes. A thorough cost segregation study can: Identify Specific Components : By breaking down the building into individual components, taxpayers can more easily determine which parts are being disposed of during renovations. Assign Accurate Costs : Each component is assigned a cost basis, facilitating the calculation of the adjusted basis for the disposed portion. Simplify Basis Adjustments : With detailed records from the cost segregation study, taxpayers can accurately reduce the asset's basis by the disposed portion's adjusted basis, as required by the disposition regulations. By integrating cost segregation studies into their tax planning, taxpayers can effectively manage partial dispositions, ensuring compliance with IRS regulations and optimizing tax benefits. For detailed guidance, refer to the IRS Practice Units on this topic: Identifying a Taxpayer Electing a Partial Disposition of a Building Examining a Taxpayer Electing a Partial Disposition of a Building
IRS Guidelines on Cost Segregation
September 30, 2024
When it comes to cost segregation, adherence to IRS guidelines is paramount for property owners aiming to maximize their tax savings while avoiding audits and penalties.
Introduction to Cost Segregation
September 24, 2024
Welcome to our comprehensive guide on cost segregation, a strategic tax planning tool that can significantly enhance cash flow for property owners and real estate investors. This introduction will explore what cost segregation is, explain its importance, and preview what you will learn from this blog
Frequently Asked Questions About Cost Segregation
September 17, 2024
Get the answers to the most frequently asked questions about cost segregation, providing you with clear and concise information to help you understand this valuable tax strategy.
Cost Segregation Case Studies
September 10, 2024
Are you leaving money on the table with your real estate investments? Many investors unknowingly miss out on substantial tax savings by not leveraging one powerful tool: Cost Segregation.
Common Misconceptions About Cost Segregation
September 3, 2024
Cost segregation is a powerful tax strategy that can significantly enhance cash flow and return on investment for various types of property owners. By accelerating depreciation deductions, cost segregation reduces taxable income, lowering overall tax liabilities.
How to Conduct a Cost Segregation Study
By ASCSP July 24, 2024
Discover how adhering to IRS guidelines in cost segregation can maximize your tax savings and avoid audits. Learn the basics of cost segregation, the critical role of detailed engineering approaches, and best practices to ensure compliance. Avoid common mistakes and secure substantial financial benefits with expert guidance.
By ASCSP July 24, 2024
Imagine uncovering hidden tax savings amounting to tens or even hundreds of thousands of dollars—savings that can be reinvested into your business, property improvements, or other ventures. Take, for example, a commercial property owner who recently conducted a cost segregation study and discovered $250,000 in tax savings over a few years. This was made possible by identifying and reclassifying building components, accelerating their depreciation schedules. Such outcomes are achievable with the right expertise and approach . At the heart of every successful cost segregation study are skilled engineers. These professionals bring technical knowledge and analytical precision, making them indispensable to the process. Engineers analyze building components, ensuring that every eligible item is identified and reclassified correctly. Their role is crucial in navigating the complexities of IRS guidelines and securing maximum tax benefits for property owners. In this blog post, we will explore the basics of cost segregation and the indispensable role engineers play in this process. By the end, you'll understand why partnering with experienced engineers is essential for unlocking the full potential of cost segregation.
WHITECO INDUSTRIES, INC., ET AL., PETITIONERS v. COMMISSIONER OF INTERNAL REVENUE
July 24, 2024
WHITECO INDUSTRIES, INC., ET AL., PETITIONERS v. COMMISSIONER OF INTERNAL REVENUE, RESPONDENT Case Slide and Audio.
Short-Term Rental Loophole
By ASCSP Member July 24, 2024
Certified Cost Segregation Professionals Alex Bagne, Malik Javed, and Rob Rahner illustrate how to utilize an asset depreciation strategy to maximize tax savings from the short-term rental loophole if the activity meets the “Seven-Day Rule.”
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