Regulation · 2013
T.D. 9636 — Final Tangible Property Regulations
T.D. 9636, 78 FR 57686 (Sept. 19, 2013); 2013-43 I.R.B. 331
Treasury Decision
Audio summary
A short audio walkthrough of this rule: what it says and why it matters for your study.
What it holds
Finalized the tangible property regulations under Sections 162(a) and 263(a), establishing the unit-of-property rules, the nine building-system units, the betterment/restoration/adaptation capitalization tests, the de minimis safe harbor, the routine maintenance safe harbor, the small taxpayer safe harbor, and the general repair deduction rule. Effective for tax years beginning on or after January 1, 2014; earlier adoption was permitted.
Why it matters for your study: T.D. 9636 is the foundational framework that governs every building expenditure decision. A cost segregation study must show that the components it identifies were correctly capitalized under these standards. The same rules that tell you when to capitalize something also set up the partial-disposition and component-replacement analysis for future years.
Where this comes from
For decades, the line between a deductible repair and a capital improvement was one of the most litigated areas in tax law. In 2013, after years of proposed and temporary regulations, the Treasury finalized the rules in a single Treasury Decision: T.D. 9636.
The regulations apply to any amount paid to acquire, produce, or improve tangible property. They replaced an informal facts-and-circumstances test with a structured framework that property owners and their advisors could apply consistently.
What it established
T.D. 9636 finalized several interconnected rules.
The unit-of-property rules (Treas. Reg. 1.263(a)-3(e)) define the relevant unit for improvement analysis. For buildings, that means the building structure plus nine enumerated systems, each analyzed separately.
The betterment, restoration, and adaptation tests (subsections (j), (k), and (l)) determine whether a building expenditure must be capitalized. Any cost that meets one of the three tests is a capital improvement.
Three safe harbors reduce complexity for qualifying owners: the de minimis safe harbor for small purchases, the routine maintenance safe harbor for expected recurring upkeep, and the small taxpayer safe harbor for very small buildings.
The repair deduction rule (Treas. Reg. 1.162-4) confirms that costs failing all three tests are currently deductible.
How it shows up in a study
A cost segregation study produces a list of components, each assigned to a depreciation class. Before that list means anything, each component must have been correctly capitalized in the first place. T.D. 9636 is the authority that governs that question.
If a cost should have been deducted as a repair, it never should have been capitalized and it does not belong on the depreciation schedule. The study works within the T.D. 9636 framework, not around it.
The regulations also set up the ongoing analysis. Every year you spend money on the building, the same unit-of-property rules and B/R/A tests apply. The study's component records give you the baseline you need to run those tests with real numbers.
What it does not mean
T.D. 9636 is not the end of the analysis for cost segregation. It governs what gets capitalized. Treasury Decision 9689, finalized in 2014, governs what happens when a capitalized component is later retired or replaced, including the partial-disposition election.
The regulations also do not eliminate judgment. The betterment and restoration tests use materiality standards that require facts-and-circumstances analysis. The safe harbors have dollar caps and qualifying criteria. A well-prepared study documents the application of these standards for each component.
Primary source
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- Category
- Tangible property regs
- Applies to
- All property types
- Status
- Vetted
This page explains a tax authority in plain words. It is not tax advice for your situation. The way this authority applies to your property is reviewed by a licensed tax professional. Citation is provided so you or your advisor can read the primary source.