Renovating Your Property? Don't Overlook the Tax Benefits of Partial Asset Dispositions
By Cody Heimerdinger, CPA, Director
A prior cost segregation study could help identify additional tax deductions when building components are replaced or removed. When real estate owners undertake renovations or major property improvements, the focus is often on the cost of the new improvements and how those costs will be depreciated for tax purposes. However, there is another potential tax benefit that is frequently overlooked: the remaining tax basis of the building components being removed or replaced. Under the federal tax regulations, property owners may be eligible to recognize a loss on certain retired building components through what is known as a partial asset disposition. This is an important consideration for real estate investors and business owners, particularly those who have previously completed a cost segregation study.
What Is a Partial Asset Disposition?
A partial asset disposition occurs when a taxpayer removes, replaces, or permanently retires a portion of an existing depreciable asset, such as a building or one of its structural components. For example, consider a commercial property owner who replaces an aging roof, upgrades an HVAC system, or undertakes a substantial interior renovation. Generally, the costs of new improvements are evaluated for capitalization and depreciation. However, the original components being replaced may still have remaining tax basis that has not yet been depreciated. Rather than continuing to depreciate property that no longer exists, the tax regulations may allow the owner to recognize the remaining adjusted tax basis of the retired components as a loss in the year of disposition. Depending on the age of the property and the extent of the renovations, this deduction could be significant.
Why a Previous Cost Segregation Study Matters
Cost segregation studies are commonly used to identify portions of a building that qualify for shorter depreciation recovery periods, allowing property owners to accelerate depreciation deductions. However, these studies can also serve another valuable purpose.
A properly prepared cost segregation study often includes detailed cost allocations, property component descriptions, and supporting information that can help identify the original costs associated with assets that are subsequently removed or replaced. For example, a property owner who previously completed a cost segregation study and later undertakes a major renovation may be able to use information from that study to determine whether any of the original building components have been retired. The study may help identify the original depreciable basis of those components, which can then be adjusted for depreciation previously claimed to determine whether a deductible loss remains. Importantly, a previous cost segregation study is not required to claim a partial disposition deduction. However, having one may make the analysis more efficient and provide valuable supporting documentation.
A Practical Example
Assume a commercial building owner undertakes a substantial renovation that includes replacing an existing HVAC system. Through a review of the property’s original cost records and prior depreciation allocations, the owner determines that the retired HVAC components had an original depreciable tax basis of $120,000. If $45,000 of depreciation had previously been claimed, the remaining adjusted tax basis would be $75,000. Subject to the applicable tax rules and proper documentation, the owner may be eligible to recognize a $75,000 loss associated with the retired components. Meanwhile, the replacement HVAC system would be evaluated separately for capitalization and depreciation. The result is potentially two distinct tax benefits: recognition of the remaining basis of the retired property and depreciation deductions associated with the new improvements.
Timing and Documentation Are Important
Partial asset disposition treatment is not necessarily automatic. In many situations, taxpayers must make an election on a timely filed original federal income tax return, including extensions, for the year in which the disposition occurs. This makes it especially important to evaluate potential partial dispositions before the tax return is filed. Property owners should retain renovation contracts, demolition records, contractor invoices, fixed asset schedules, and any previously completed cost segregation studies. These records can help establish which components were removed and support the calculation of their remaining adjusted tax basis.
An Opportunity Worth Revisiting
As we approach year-end, real estate investors and business owners should consider reviewing significant renovations and capital improvement projects completed during 2026. The analysis should not stop with determining how the new improvements will be depreciated. It should also consider whether the project resulted in the retirement of existing depreciable property. For owners who have previously completed cost segregation studies, this review may be particularly worthwhile.
At Keystone CPAs, we encourage property owners to discuss significant renovations, replacements, and capital improvement projects with their tax advisors before filing their income tax returns. A review of existing depreciation schedules and prior cost segregation studies may uncover deductions that would otherwise be overlooked. Sometimes the tax benefit of a renovation isn’t just what you put into the building, it’s also what you took out.