Permanent Floor or Removable Covering? The ATG’s Attachment Test

Does the word “carpet,” “vinyl,” “tile,” or “wood” tell you how a floor covering should be depreciated? The 2025 IRS Cost Segregation Audit Technique Guide shows why the answer is no. Across several industry matrices, the ATG distinguishes floor coverings that are permanently affixed from coverings installed in a way that allows them to be removed without becoming part of the underlying floor. Permanent attachment can support § 1250 treatment, while readily removable coverings can be § 1245 property under the applicable industry asset class. For CostSegRx engineers, flooring classification begins with how the material is installed and what remains after removal.

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Key Takeaways

• The ATG distinguishes permanent floor coverings from readily removable coverings based largely on installation and attachment.
• Permanent adhesives, nails, screws, cement, mud, grout, epoxy, and similar methods can integrate flooring with the building.
• The material name alone does not determine classification because the same general flooring category can be installed differently.
• Engineers can examine adhesives, fastening methods, substrate conditions, removal damage, manufacturer details, and evidence of reuse.
• Qualifying removable floor coverings may be § 1245 property, but their recovery period depends on the business activity and applicable asset class.
• Two flooring installations using similar materials can require different treatment when one is permanently bonded and the other can be removed intact.
• The strongest flooring classification traces the material from installation through removal rather than relying on its name.

What Does the ATG Treat as Permanent Floor Covering?

The ATG repeatedly distinguishes floor coverings that are permanently attached to the building.

In retail guidance, permanent floor covering includes flooring affixed with permanent adhesive or nailed or screwed in place. The examples include ceramic or quarry tile, marble, paving brick, coverings cemented, mudded, or grouted to the floor, epoxy or sealers, and wood flooring. Those items are identified as § 1250 property and 39-year nonresidential real property.

The auto-manufacturing matrix uses similar language.

It includes permanently adhered floor coverings, nailed or screwed wood flooring, stone, marble, ceramic tile, quarry tile, cemented or grouted coverings, paint, epoxy, sealers, and solvent-based coatings within § 1250 property and 39-year nonresidential real property.

The residential rental matrix applies the same physical concept but uses the residential building class. Permanently attached coverings are § 1250 property and generally 27.5-year residential rental property.

That distinction tells us something important.

The flooring material matters less than the installed relationship between the covering and the floor beneath it.

What Makes a Floor Covering Readily Removable?

The ATG provides a much different description for removable coverings.

Retail floor coverings installed with strippable adhesives are treated as not permanently attached and not intended to be permanent. The retail matrix specifically includes VCT, sheet vinyl, carpeting, and flooring frequently moved and reused to create department themes or seasonal displays. Those items are identified as § 1245 property and 5-year property under Asset Class 57.0.

Residential rental guidance is even more explicit.

It describes qualifying removable floor covering as flooring installed by means of strippable adhesives that can either be readily removed while remaining in substantially the same condition or be moved and reused, stored, or sold in its entirety. The matrix identifies VCT, sheet vinyl, and carpeting as not permanently attached and not intended to be permanent under that fact pattern.

Pharmaceutical and biotech guidance uses substantially the same removal logic for § 1245 floor coverings.

So the engineering distinction is practical.

Can the covering come off without becoming demolition debris?

Can the substrate remain substantially intact?

Does the covering retain an independent identity after removal?

Those facts say more than the word written on the finish schedule.

Why Can't Flooring Be Classified by Material Name Alone?

Because the ATG itself shows that installation can change the analysis.

Take vinyl flooring.

A vinyl covering permanently bonded to the floor can present permanent-building facts.

VCT or sheet vinyl installed with strippable adhesive can present removable-property facts under applicable industry guidance.

Carpet provides another example.

Restaurant guidance treats carpeting installed as a removable floor covering as § 1245 property and 5-year property under Asset Class 57.0.

But pharmaceutical guidance expressly includes carpeting attached with permanent adhesive, nails, or screws within § 1250 floor coverings.

The same general material category can therefore appear on opposite sides of the classification analysis depending on the installation facts.

That fits CostSegRx's broader approach to engineering asset classification.

The asset name describes the object.

Engineering describes how that object actually relates to the building.

How Do Engineers Determine Whether Flooring Is Permanent?

CostSegRx engineers can start with the finish schedule, architectural plans, specifications, subcontractor scope, product data, flooring invoices, and manufacturer installation instructions.

Then the field conditions matter.

What adhesive was used?

Was the material cemented or grouted into place?

Is it nailed or screwed to the substrate?

Is it applied directly as a coating?

Does the flooring lift from a reusable adhesive or removable installation system?

What happens to the underlying floor when the covering is removed?

Does the material remain substantially intact?

Is the flooring designed for recurring relocation or replacement?

Has it actually been moved or reused?

Those questions can help distinguish an integrated finish from removable property.

The ATG's quality-study standards emphasize use of the best available documentation, construction drawings, specifications, site visits, and clear identification of § 1245 property.

That is why a CostSegRx engineering site inspection can matter even for something as visible as flooring.

Seeing carpet is easy.

Understanding how it was installed is the classification work.

Does Readily Removable Flooring Always Mean 5-Year Property?

No.

First determine whether the floor covering is § 1245 property.

Then identify the business activity and applicable asset class.

Retail guidance identifies qualifying removable flooring under Asset Class 57.0 as 5-year property.

Auto dealership guidance does the same for qualifying VCT, sheet vinyl, and carpeting.

But the auto-manufacturing matrix classifies readily removable floor coverings under Asset Class 37.11, Manufacture of Motor Vehicles, which is 7-year property.

Casino guidance demonstrates the issue particularly well.

Qualifying nonpermanent floor covering associated with casino, theater, or showroom activity can be 7-year property under Asset Class 79.0, while similar removable floor covering outside those activities can be 5-year property under Asset Class 57.0.

That means CostSegRx should not reduce the ATG guidance to:

“Carpet is 5-year property.”

A stronger sequence is:

Determine the installation.

Determine whether the flooring is § 1245 or § 1250 property.

Determine the activity in which the property is used.

Then identify the applicable depreciation class.

That approach is consistent with a quality cost segregation study, which should explain both the property classification and the supporting rationale.

Can the Same Flooring Material Produce Different Classifications?

Illustrative example only. Figures shown are estimated for demonstrative purposes only. Actual land allocations, asset classifications, depreciation, and tax results depend on the specific property, supporting documentation, engineering analysis, and taxpayer circumstances.

Assume a retail property contains two flooring installations.

Area A contains $180,000 of flooring installed with permanent adhesive over the building floor.

Removal requires scraping and destructive separation, and the material cannot realistically be removed and reused as a functioning floor covering.

Area B contains $180,000 of modular or removable flooring installed with a strippable adhesive system.

The covering can be lifted from the substrate with limited damage, remains substantially intact, and is designed to be reused when the retailer changes merchandise layouts.

The material categories may appear similar on a contractor invoice.

The installation facts are different.

Under the ATG's retail guidance, Area A presents permanent floor-covering facts associated with § 1250 property and 39-year nonresidential real property.

Area B presents the removable-flooring facts associated with § 1245 property and, in the retail matrix, 5-year property under Asset Class 57.0.

Now assume the same removable flooring were used in a motor-vehicle manufacturing activity.

The § 1245 conclusion might remain supportable under the applicable facts, but the ATG's manufacturing matrix points to 7-year property under Asset Class 37.11 rather than automatically using the retail recovery period.

The covering did not change.

The business activity did.

That is why the classification and recovery-period questions should be handled separately.

What Is the Most Important Flooring Classification Question?

Do not begin with:

Is it carpet?

Is it vinyl?

Is it tile?

Is it wood?

Instead ask:

How is this floor covering attached, and what happens when it is removed?

If the flooring is permanently adhered, nailed, screwed, cemented, mudded, grouted, coated, or otherwise integrated into the floor, those facts support building treatment under the ATG's applicable matrices.

If the flooring uses strippable adhesives and can be removed substantially intact, reused, stored, sold, or regularly relocated, those facts can support § 1245 treatment.

Then identify the applicable business activity.

That final step determines whether qualifying § 1245 flooring is 5-year property, 7-year property, or another applicable recovery class.

For CostSegRx engineers, the finish schedule is only the starting point.

Inspect the installation.

Document the attachment.

Understand the removal method.

Determine whether the material retains independent usefulness.

Then apply the appropriate classification and asset-class authority.

Do not classify flooring from the words carpet, vinyl, tile, or wood alone. Engineers determine how the covering is attached, what happens when it is removed, whether it retains independent usefulness, and which business activity the flooring serves.