Building Security vs. Inventory Tracking: Why the Protected Asset Matters

Can two security cameras in the same commercial property receive different depreciation treatment? The 2025 IRS Cost Segregation Audit Technique Guide shows that they can when the systems perform different functions. Security equipment protecting a building, its contents, and its occupants can remain § 1250 property, while electronic systems used to monitor merchandise, inventory, production materials, or other tangible business property can be § 1245 property. The distinction is not created by the camera, scanner, gate, recorder, or monitor itself. For CostSegRx engineers, the stronger question is what the system was designed to protect or track.

Wondering how much tax you could save with cost segregation? Let’s find out. Schedule a Cost Segregation Strategy Call today.

Key Takeaways

• Building security systems generally protect the structure, its contents, employees, occupants, or guests from burglary, vandalism, theft, or assault.
• Inventory and product-tracking systems use electronic surveillance to monitor tangible business property such as merchandise, raw materials, work in process, or finished goods.
• The same type of camera, monitor, scanner, or gate can receive different treatment because system purpose matters more than the device name.
• Engineers can trace camera zones, access controls, scanners, gates, recording systems, wiring, and operating workflows to identify what the system actually serves.
• The applicable § 1245 recovery period depends on the relevant business activity and asset class rather than a universal security-system recovery period.
• Two surveillance networks with similar hardware can produce different classifications when one protects the building and the other tracks business inventory.
• Security-system classification begins by identifying the asset or activity the system was designed to protect, monitor, or control.

What Does the ATG Treat as Building Security?

The ATG describes building security equipment as property used to protect the building and its contents from burglary or vandalism and to protect employees, occupants, residents, or guests from assault.

The hardware can be extensive.

Examples in the ATG include window and door locks, card-key access systems, keyless-entry systems, security cameras, recorders, monitors, motion detectors, security lighting, alarms, and related security wiring and conduit.

These are not automatically § 1245 property merely because they contain electronics.

Their function can relate directly to operation and protection of the building.

In the auto-manufacturing guidance, building security systems are § 1250 property and 39-year nonresidential real property. The pharmaceutical and biotech guidance applies the same general treatment to security systems protecting the building and employees.

Residential rental guidance follows the same functional concept but uses the building's residential recovery class. Building security protecting residents, guests, residences, and contents can be § 1250 property and 27.5-year residential rental property.

The hardware may be electronic.

The function is still building security.

What Is an Inventory-Tracking Security System?

The ATG separately identifies electronic systems used to track and monitor tangible business property.

In auto manufacturing, the ATG specifically refers to raw materials, work in process, and finished-products inventory. Examples include electronic tags, electronic gates, scanners, recorders, and related equipment. Those systems are identified as § 1245 property under the applicable manufacturing asset class.

The same concept appears in pharmaceutical and biotech guidance.

There, electronic surveillance systems used to track raw materials, work in process, and finished products are distinguished from security systems protecting the building itself.

Retail guidance provides another version of the concept.

Electronic article surveillance systems whose primary purpose is minimizing merchandise shrinkage can include electronic gates, surveillance cameras, recorders, monitors, and related equipment. In that retail fact pattern, the ATG identifies the qualifying property as § 1245 property and 5-year property under Asset Class 57.0.

So the functional distinction is not simply:

Security versus non-security.

Both systems may be described as security.

The more precise distinction is:

Building protection versus business-property monitoring.

Why Can't a Security Camera Be Classified by Its Name?

Because the ATG uses the same hardware in different classifications.

Consider two surveillance cameras.

Camera A watches the employee entrance, parking access, and building perimeter. Its purpose is to detect unauthorized access, burglary, vandalism, or threats to occupants.

Camera B watches merchandise passing through a controlled inventory zone and operates with scanners and electronic gates to monitor product movement.

Both are cameras.

Both may feed digital recorders.

Both may use similar cabling.

Both may even come from the same manufacturer.

But they are part of systems performing different functions.

The ATG makes the distinction particularly clear in auto dealerships. Building security systems protecting the dealership and employees are § 1250 property, while electronic surveillance systems used to monitor new and used automobile inventory are identified as § 1245 property and 5-year property under Asset Class 57.0.

This is why engineering asset classification cannot begin and end with the equipment name.

The device tells us what exists.

The system purpose tells us much more.

How Do CostSegRx Engineers Determine What a Security System Serves?

The investigation can begin with plans and system documentation.

CostSegRx engineers may review security drawings, low-voltage plans, access-control diagrams, camera schedules, equipment specifications, wiring diagrams, vendor proposals, control-system documentation, and inventory-management records.

Then the engineer can compare those documents with actual property operations.

Where is each camera pointed?

What triggers recording?

Which doors use card access?

What does an electronic gate detect?

Is a scanner reading employee credentials or merchandise tags?

Does the system interface with inventory-management software?

Is the monitored zone a building entrance, a public area, a warehouse inventory lane, a vehicle storage lot, or a production line?

Who uses the data?

Those questions reveal the business function.

The ATG recommends field inspection as part of a quality study and states that physical inspection can help establish the purpose, use, installation, and construction of property.

That aligns with CostSegRx's broader engineering site inspection methodology.

A photograph might show a camera.

An engineering investigation can establish what the camera is doing.

Does Every Inventory Security System Become 5-Year Property?

No.

The § 1245 classification question comes before the recovery-period question.

The ATG shows that the applicable class can depend on the business activity.

Retail electronic article surveillance systems used to minimize merchandise shrinkage can fall under Asset Class 57.0 and be 5-year property.

Auto dealership systems monitoring new and used automobile inventory are also identified under Asset Class 57.0 as 5-year property.

Auto-manufacturing product and inventory systems, however, are identified as § 1245 property under Asset Class 37.11, Manufacture of Motor Vehicles, which is 7-year property.

Casino guidance provides another example of why system purpose and business activity must both be identified. Surveillance used primarily to monitor gaming activity and minimize theft in the casino area is identified as § 1245 property associated with the applicable recreation asset class, while retail surveillance in the same broader property can fall under the distributive-trades asset class.

So CostSegRx engineers should not create a rule that says:

“Inventory camera equals 5-year property.”

The better sequence is:

Identify the system.

Identify what it protects or tracks.

Determine whether it is § 1245 property or § 1250 property.

Identify the applicable business activity and asset class.

Then determine the appropriate recovery period.

That is consistent with a quality, audit-ready cost segregation study, where the reasoning behind the classification matters as much as the final category.

Can Two Similar Camera Systems Have Different Treatment?

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 an auto dealership installs two electronic surveillance systems.

System A has a supported installed cost of $120,000.

It includes perimeter cameras, employee-entry cameras, motion detectors, access-control devices, recorders, monitors, wiring, and related equipment.

Its purpose is to protect the dealership building, employees, and contents from burglary, vandalism, and assault.

System B also has a supported installed cost of $120,000.

It includes cameras, scanners, electronic gates, recorders, and monitors focused on the new and used vehicle inventory. Its purpose is to monitor tangible inventory rather than protect the building generally.

The hardware categories overlap.

The cost is identical.

The function is not.

Under the ATG's auto-dealership matrix, System A presents building-security facts associated with § 1250 property and 39-year nonresidential real property.

System B presents inventory-monitoring facts associated with § 1245 property and Asset Class 57.0, which the matrix identifies as 5-year property.

Now assume one recorder serves both systems.

That creates a more detailed engineering question.

Which cameras feed it?

What functions does it support?

Can its cost be specifically identified or reasonably associated with the different systems?

Those facts need to be documented rather than solved by simply calling the entire project “security.”

The contractor category may be one line item.

The engineering inventory can contain more than one classification.

What Is the Most Important Security-System Classification Question?

Do not start with:

Is this a camera?

Is this an alarm?

Is this an electronic gate?

Instead ask:

What is this system designed to protect, monitor, or track?

If the system protects the building, its contents, employees, residents, or guests as part of normal building security, the ATG provides examples of § 1250 treatment.

If the system is used to monitor merchandise, automobiles, raw materials, work in process, finished goods, gaming activity, or another specific business activity, the ATG provides examples of § 1245 treatment.

Then identify the applicable asset class.

That final step matters because § 1245 property does not have one universal recovery period.

For CostSegRx engineers, the analysis begins with system function.

Trace the devices.

Identify the monitored area.

Understand the data.

Determine what asset or activity is being protected.

Then apply the appropriate classification framework.

Do not classify security technology by the device name. Engineers identify what the system is designed to protect or track. A camera protecting the building can have a different classification from a camera used as part of an inventory-tracking system.