Look for study provider, placed-in-service date, basis allocation, bonus assumption, passive-loss limits, and recapture plan.
Plain-English term
Cost segregation
A study that can accelerate parts of real estate depreciation.
Definition that survives review
Cost segregation separates building components into shorter depreciation lives when supported by a qualified study. In a real review, translate the term into the cash flow, priority, deadline, tax treatment, status test, or control right it changes.
Use it to understand timing of deductions and questions for a CPA. If you cannot point to the exact document or calculation behind it, you have recognized the vocabulary but not yet understood the deal.
Why it matters
It can be powerful tax timing. It can also become cocktail-party tax talk if nobody explains basis, recapture, and your actual situation. This is why the term is not finished until you know who calculated it, what period it covers, and what happens if the friendlier definition is wrong.
A useful glossary entry should show where the word appears, what input changes it, and which connected term changes the answer next: Depreciation, 1031 exchange, Passive losses.
How to use it in diligence
Building basis is separated into components with different depreciation lives.
Some components may qualify for shorter lives than the building shell, which can accelerate deductions if the facts and tax rules support it.
Tax timing is not free money. Recapture, passive loss limits, basis, and your personal situation still matter.
Proof checklist
- The source period, calculation basis, and owner of the number are named.
- The term reconciles to the PPM, operating agreement, lender documents, tax schedule, underwriting model, or verification record.
- The downside version is visible before the optimistic version gets trusted.
Example, trap, question
Some components may qualify for shorter lives than the building shell, which can accelerate deductions if the facts and tax rules support it.
Tax timing is not free money. Recapture, passive loss limits, basis, and your personal situation still matter.
- who prepared the study and whether your CPA agrees with the treatment before you count the benefit.
- What source document, schedule, or third-party evidence proves this term in this specific deal?
- Which connected term changes the answer next: Depreciation, 1031 exchange, Passive losses?
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