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CostSegRx engineer evaluating installed commercial equipment using the six Whiteco property permanence factors

Whiteco Industries: The Six-Factor Test for Property Permanence

atg audit technique guide Aug 09, 2026

Whiteco Industries, Inc. v. Commissioner, 65 T.C. 664 (1975), is one of the most important property-classification cases discussed in the IRS Cost Segregation Audit Technique Guide. The ATG identifies Whiteco as the seminal case for determining whether an asset is inherently permanent and notes that the case involved outdoor advertising signs classified as § 1245 property. The Tax Court developed six questions, now commonly called the Whiteco factors, for evaluating whether property qualifies as tangible personal property. Those questions focus on the physical reality of an asset: whether it moves, how it was designed, how long it is expected to remain, what removal requires, what damage removal causes, and how the asset is affixed. For CostSegRx engineers, Whiteco is important because it turns permanence into something that can be investigated through engineering facts rather than assumed from appearance alone.


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Key Takeaways

What Was Whiteco Industries v. Commissioner About?

The ATG identifies Whiteco Industries, Inc. v. Commissioner as the seminal case involving whether an asset is inherently permanent for purposes of the classification framework used in cost segregation. The ATG's court-case table identifies the assets at issue as outdoor advertising signs, or billboards, and lists them as § 1245 property. It also describes Whiteco as the landmark case that set forth factors for determining whether property is inherently permanent.

The broader significance of the case extends well beyond billboards.

The Tax Court explained that tangible personal property was not intended to be defined narrowly and should not simply follow state-law rules that distinguish personal property from real property based on fixation to land. The ATG notes that assets accessory to the operation of a business, such as machinery, printing presses, office equipment, individual air-conditioning units, display racks, and shelves, can generally constitute tangible personal property even when local law might describe them as fixtures.

That is why Whiteco became important to cost segregation.

An engineer cannot look at an installed asset, see that it is attached to land or a building, and conclude that the analysis is finished.

The attachment is evidence.

It is not the entire test.

This builds directly on CostSegRx's article about inherently permanent property, where the broader permanence framework is explained.

Whiteco Factor 1: Can the Property Be Moved, and Has It Actually Been Moved?

The first Whiteco factor asks:

Is the property capable of being moved, and has it in fact been moved?

The second part of that question is especially important.

Theoretical movability is different from evidence that the same asset, or comparable assets, actually move as part of normal ownership or business operations.

A piece of equipment may technically be removable with enough demolition, labor, and heavy machinery. That does not tell us whether relocation is realistically part of how that property is designed or used.

Conversely, a substantial asset may be large, heavy, and anchored while still having a history of relocation between facilities.

CostSegRx engineers can investigate this factor through equipment history, owner interviews, photographs, installation records, relocation records, manufacturer information, and field observations.

The ATG reinforces this idea by separately telling examiners to consider the history of the item or similar items being moved.

The question is not simply:

“Could someone move it?”

The stronger engineering question is:

“Does the physical and historical evidence show that this type of property is actually capable of practical relocation?”

Whiteco Factor 2: Was the Property Designed to Remain Permanently in Place?

The second Whiteco factor asks:

Is the property designed or constructed to remain permanently in place?

This shifts the analysis from movement to design.

An asset can be physically movable but designed to remain in one location throughout its useful life.

Another asset may be anchored during operation but designed for periodic relocation, replacement, or reconfiguration.

Engineering documentation can be particularly useful here.

Construction drawings may show how an asset interfaces with the building.

Manufacturer specifications may reveal whether relocation was contemplated.

Equipment layouts may show modular installation.

Foundation details may show whether the mounting system exists primarily to resist operating forces such as vibration or lateral loads.

The ATG also identifies function and design, as well as taxpayer intent when installing the item, as additional permanence considerations.

That distinction matters because physical attachment may exist for many reasons.

A machine can require anchors because it vibrates.

A sign may need foundations because it is exposed to wind.

An equipment skid may need restraint because of operational forces.

The fact that something needs secure installation does not independently establish that it was designed to become a permanent part of the real property.

Whiteco Factor 3: How Long Was the Property Expected to Remain Attached?

The third Whiteco factor asks whether circumstances indicate the expected or intended length of attachment and whether circumstances show that the property may or will need to be moved.

This is a different question from whether the asset can physically move.

It asks how permanence fits into the ownership or operating plan.

Consider a production facility where equipment is periodically rearranged as product lines change.

A particular machine might remain anchored for several years, but the operating model may contemplate eventual relocation.

Now consider an integrated building system installed with the expectation that it will remain for the building's entire useful life.

Both may stay in place for long periods.

But the intended length and purpose of attachment differ.

Useful evidence may include capital expenditure requests, equipment plans, lease terms, renovation plans, production layouts, replacement schedules, owner interviews, and construction documentation.

The ATG's examination guidance specifically recommends reviewing project information such as Capital Expenditure Requests and Authorizations for Expenditure because these documents can help establish intended use.

For CostSegRx, that reinforces a broader principle:

Documentation can reveal intent that is not visible from a photograph alone.

Whiteco Factor 4: How Difficult and Time-Consuming Is Removal?

The fourth Whiteco factor asks:

How substantial a job is removal, how time-consuming is it, and is the property readily removable?

This is where engineering observation can become especially concrete.

An engineer can examine:

How many connections must be disconnected?

Are specialized trades required?

Would cranes, forklifts, rigging, demolition equipment, or temporary structural support be needed?

Would walls, roofs, floors, or surrounding systems need to be removed?

How much labor is involved?

How long might the process realistically take?

The ATG expands on this factor by instructing examiners to consider the time, cost, manpower, and equipment required to move the components. It also calls for consideration of the work needed to reconfigure the existing space after removal.

This demonstrates why a simple statement such as “the equipment can be unbolted” may provide very little analytical value.

Unbolting may represent five minutes of work.

Or the bolts may be the first step in a multiday removal requiring shutdowns, utility disconnection, demolition, rigging, structural modification, and reconstruction.

The complete removal process matters.

Whiteco Factor 5: How Much Damage Will Removal Cause?

The fifth Whiteco factor asks:

How much damage will the property sustain upon removal?

This focuses on the asset itself.

Can the property be removed substantially intact?

Would dismantling destroy important parts of it?

Would it remain usable?

Could it be sold, stored, relocated, or installed at another property?

The ATG separately tells examiners to consider the extent to which the item can be reused after removal.

The condition of the building also matters to the broader permanence investigation.

The ATG identifies the effect of removal on the building as an additional factor.

That means an engineer may evaluate damage in both directions.

What happens to the asset?

What happens to the surrounding property?

A removable partition system provides a useful illustration from the ATG's industry guidance. In the automobile manufacturing matrix, movable partitions that can be readily removed, remain substantially intact, and be reused, stored, or sold are treated differently from interior walls that cannot be readily removed and incur damage during removal.

That example demonstrates how removal damage can reveal the true physical relationship between an asset and a building.

Whiteco Factor 6: How Is the Property Affixed to the Land?

The sixth Whiteco factor asks:

What is the manner of affixation of the property to the land?

This is the factor people often focus on first.

It should not be considered alone.

An engineer may observe whether an asset is:

Held in place by its own weight.

Bolted to concrete.

Attached to embedded anchors.

Welded to structural members.

Mounted on a separate equipment foundation.

Embedded into the building construction.

Connected through utilities.

Integrated into surrounding architectural or structural systems.

These details matter because attachment helps explain the asset's relationship to the property.

But Whiteco expressly prevents attachment from becoming an automatic conclusion.

The ATG states that movability is not determinative and explains that the Whiteco court held that affixation to land does not, by itself, exclude an asset from tangible personal property. It also cites L.L. Bean for the opposite principle that theoretical movability does not conclusively prove that a structure is not inherently permanent.

That balance is one of the most important lessons in the case.

Bolts matter.

But bolts are one fact among many.

How Do CostSegRx Engineers Apply the Whiteco Factors?

CostSegRx engineers do not treat Whiteco as six boxes where enough checked boxes automatically produce a classification.

The ATG itself presents the analysis as a facts-and-circumstances inquiry and supplements the six factors with additional considerations.

Those include:

  • History of the item or similar items being moved
  • Attachment method
  • Weight and size
  • Function and design
  • Taxpayer intent
  • Time, cost, manpower, and equipment needed for removal
  • Reconfiguration required after removal
  • Effect of removal on the building
  • Whether the asset can be reused after removal

The engineering process therefore gathers evidence.

A site inspection can document anchors, foundations, connections, clearances, access routes, and surrounding construction.

Plans can show how the asset was originally designed into the property.

Specifications can explain operating requirements.

Photographs can preserve field conditions.

Owner interviews can help establish relocation history or expected use.

Capital project documents can help show why an asset was installed.

This is also why CostSegRx treats tangible personal property classification as an engineering question grounded in physical facts.

The legal framework asks the questions.

Engineering develops the evidence needed to answer them.

How Can the Whiteco Factors Change the Analysis of Two Similar Assets?

Illustrative example only. Actual asset classifications, costs, recovery periods, depreciation deductions, and tax results depend on the specific property, engineering analysis, documentation, applicable authority, and taxpayer circumstances.

Assume two industrial facilities each contain a $200,000 equipment system anchored to a concrete slab.

From an accounting schedule, the assets may look almost identical.

Both are described as installed equipment.

Both are anchored.

Both have electrical connections.

Now apply the Whiteco questions.

At Facility A, comparable equipment has historically been relocated. The system was designed in modular sections. Connections can be disconnected without destroying the unit. Removal requires normal rigging, and the system can be reused elsewhere with limited reconfiguration.

At Facility B, the equipment was built into the surrounding construction. Removal requires demolition of surrounding improvements, substantial utility reconstruction, specialized lifting operations, and significant repair to the space. Parts of the system may not remain economically reusable after removal.

The original cost is the same.

The attachment description is similar.

The permanence evidence is very different.

Whiteco does not automatically determine the final classification from this hypothetical. The applicable tax framework and all relevant facts still need to be considered.

The example demonstrates why CostSegRx engineers cannot classify property from a fixed-asset description such as “equipment bolted to slab.”

That description answers only part of one factor.

What Is the Most Important Lesson From Whiteco Industries?

Whiteco transformed permanence from a simplistic attachment question into a structured facts-and-circumstances analysis.

The ATG continues to rely on that framework. Its issue-specific electrical guidance even identifies application of the six-factor Whiteco test as the first step when examining whether components of an electrical distribution system are inherently permanent structures.

That shows how far the case reaches beyond outdoor advertising signs.

The six factors ask about movement, design, intended attachment duration, removal difficulty, removal damage, and manner of affixation.

The ATG then broadens the inquiry with additional physical and operational considerations.

For CostSegRx engineers, the significance is practical.

These are questions that can be investigated.

They can be documented.

And the resulting engineering evidence can support a classification analysis that reflects the actual property rather than an assumption based on appearance.

Whiteco does not ask whether an asset is technically movable. It asks what the complete physical evidence says about permanence.

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