Partial Asset Disposition and Cost Segregation: Claim a Loss When You Renovate
What Is Partial Asset Disposition?
Partial asset disposition is a tax strategy that allows property owners to recognize a loss when they replace or remove a building component. Under IRS regulations (Treasury Regulation 1.168(i)-8), when you dispose of a structural component of a building, such as a roof, HVAC system, or flooring, you can write off the remaining undepreciated value of the old component as a loss in the year of disposal.
Without a partial asset disposition election, the old component's remaining basis stays on the books and continues to depreciate alongside the new replacement. This means you are depreciating both the old component you no longer have and the new one you just installed, which understates your actual loss and overstates your depreciation basis going forward.
How Cost Segregation Enables Partial Asset Disposition
Partial asset disposition requires you to know the cost basis of the specific component being replaced. If your entire property is depreciated as a single asset (as it is under standard straight-line depreciation), there is no way to isolate the cost of the roof, the HVAC, or the flooring. Everything is lumped together.
A cost segregation study solves this problem by breaking the property into its individual components with specific cost allocations. Once you have a component-level asset listing, you can identify exactly what the old roof or HVAC system was worth, write off the remaining basis, and start depreciating the new replacement independently.
A Practical Example
An investor owns a rental property purchased five years ago for $400,000 (depreciable basis of $320,000). They replace the roof at a cost of $25,000. Without a cost segregation study and partial asset disposition, the $25,000 new roof is simply added to the property's depreciable basis and depreciated over 27.5 years. The old roof's remaining value is never written off.
With a cost segregation study, the original roof is identified as costing $32,000. After five years of straight-line depreciation, the remaining basis is approximately $26,182. By making a partial asset disposition election, the investor claims a $26,182 loss in the current year and begins depreciating the new $25,000 roof independently. The result is a significant additional deduction that would otherwise be missed entirely.
When to Use This Strategy
Partial asset disposition is most valuable when you are doing significant renovations or replacements. Roof replacements, HVAC upgrades, kitchen remodels, bathroom renovations, flooring replacement, and window upgrades are all common triggers. If you have already conducted a cost segregation study, the component-level data is ready to use. If you have not, ordering a study before or at the time of renovation positions you to take full advantage of the disposition rules.
The election is made on your tax return for the year in which the disposition occurs. Your CPA handles the filing, but the cost segregation study provides the essential data to support the claimed loss.
Pair Your Renovation with a Cost Segregation Study
If you are planning a major renovation on a rental property, consider ordering a cost segregation study at the same time. Not only will you gain the benefit of accelerated depreciation on the remaining components, but you will also have the documentation needed to claim partial asset dispositions on everything you replace. Stratum Cost Segregation can coordinate your study to maximize both benefits. Request a free estimate to get started.