Practical guide

TPR vs. cost segregation: how the reviews work together

Cost segregation and a TPR review can use many of the same records, but they answer different questions. A coordinated file keeps their conclusions connected.

Start here

Classification, depreciation timing and retirement treatment should reconcile to one property record. The same cost should not be deducted twice.

Separate the questions at the start

A shorter recovery period does not by itself make a replacement a repair. Likewise, a capitalized improvement may contain components requiring more detailed depreciation analysis. Keep the reasoning for each conclusion visible.

ReviewCore question
TPR expenditure reviewShould this expenditure be deducted or capitalized under the applicable rules?
Cost segregationHow should supported depreciable costs be classified and recovered?
Disposition reviewWhat happened to the old component and how is its remaining basis treated?

Use a shared asset record

Assign identifiers to the building, relevant systems, additions and retired components. Link invoices to those identifiers, and keep the prior depreciation schedule as the reconciliation starting point. Your review team should be able to explain how the ending basis follows from the opening record.

  • Opening cost and accumulated depreciation.
  • Current additions and amounts deducted under the reviewed treatment.
  • Retired portions and proceeds, where applicable.
  • Remaining components and revised schedules.
  • A cross-reference to each supporting invoice and technical conclusion.

Treat historical work as a separate filing question

A current-year classification review and a correction to an established depreciation or capitalization method may use different procedures. Form 3115, amended returns, elections and disposition reporting are not substitutes for one another. The preparer needs the tax years, prior treatment and filing history before selecting a route.

Avoid resetting an old asset’s acquisition date to the year a study is prepared. A later review identifies facts and potential corrections; it does not make the original purchase new.

Agree on who makes the final tax decision

Before engagement, identify who gathers property evidence, who evaluates the tax analysis and who prepares the return. Ask for a scope that explains how open questions, prior work and filing deadlines will be handled.

For an initial Innovate conversation, describe the property, recent projects and relevant tax years. Include your prior study and depreciation schedule if available. Your CPA can then help determine the implementation work and whether the timing benefit is usable in your tax situation.

Sources & scope

Sources checked September 11, 2026. This educational material does not determine a particular property’s tax treatment. Have your CPA review the facts, applicable limitations and filing requirements.

Bring your property into the conversation.

Share the project, relevant tax years and available records so we can discuss the review scope.

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