The KBKG Partial Disposition Calculator is designed to make calculations as simple as possible while minimizing unnecessary work. By providing basic data, the calculator provides a PPI adjusted value while considering the condition of the respective component at the time it was acquired (accomplished by considering the component’s normal life, quality, and age).

CAUTION: Using a PPI discounting method to establish tax basis for a retired building component may grossly overstate the taxpayer’s retirement loss deduction.


Taxpayers can realize significant benefits from the Tangible Property Repair (TPR) regulations by identifying building components that have been replaced or demolished in current or prior years and claiming retirement loss deductions. However, it is often difficult to determine the tax basis of each component without a cost segregation study. While the IRS agrees that a cost segregation study can be used for this purpose, they also allow the “PPI discounting approach” that our calculator utilizes. For more information on the IRS rules related to the PPI discounting approach, see T.D. 9689 Guidance Regarding Dispositions of Tangible Depreciable Property.

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Partial Disposition Calculator

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All Calculated Fields
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