GAP 200.090, Plant & Equipment Depreciation

Contents

  1. General
  2. Depreciation Calculation
  3. Depreciation Recorded on General Ledger
  4. General Guidelines for Depreciable Life

I. General

Depreciation is an allocation of the cost of tangible property over its estimated useful life in a systematic and rational manner. Duke calculates and reports depreciation in accordance with Generally Accepted Accounting Principals.

II. Depreciation Calculation

Depreciation is calculated using the Fixed Assets module within the SAP system. Duke uses the straight-line method, calculated on a monthly basis. For newly acquired items, depreciation is calculated beginning the month following the acquisition. For custom built or constructed equipment or facilities, depreciation calculation begins one month after the item is put into service. When an item is disposed of, depreciation is taken through the month of disposal.

The depreciable life for an item is based on its "useful life." Plant Accounting uses many resources to help assist in the determination of "useful life". Two main resources for this are the American Hospital Association guidelines, and recommendations from American Appraisal. In addition to the recommendations from these resources, Plant Accounting takes into account technological obsolescence and utilization. The guidelines in section IV are a result of these general determinations. Due to the unique nature of many assets purchased, individually significant items are reviewed for depreciable life as needed. In these situations, Plant Accounting looks at comparable guidelines as well as consulting with the vendor the item was purchased from and the department that will be using the piece of equipment.

When the accumulated depreciation equals the original cost, no further depreciation is accrued; however, both the balance of first cost and the reserve remain on the books until the item is disposed. When the item is dismantled, demolished, sold, or otherwise disposed, the cost of the item and accumulated depreciation are removed from the ledger.

(Please note that DUHS management has the authority to estimate useful lives for building assets in DUHS major facilities. These lives are sometimes estimated to be longer than the general guidelines listed below based on industry knowledge and research compiled by DUHS.)

III. Depreciation Recorded on General Ledger

Within the University, depreciation expense is posted at the company level in SAP. Within DUHS, depreciation expense is posted to either a departmental cost center or a building cost center.

Within the Fixed Assets module of SAP, each building in its entirety must belong to only one company. However some buildings are actually shared. This sharing of space is recorded in the institutional space system often referred to as Web Central. Within SAP, all of the depreciation for a building is charged to the "owning" company. Plant Accounting then uses an SAP allocation process to move the monthly depreciation expense to the appropriate company. Equipment also can only belong to one company in SAP, in the rare situations where a major piece of equipment must be allocated between companies; Plant Accounting uses the above reference process to allocate the depreciation expense each month.

If upon review of the financial records, it appears that depreciation is being charged to the wrong cost center the department should bring this to the attention of Plant Accounting. Journal Entries are not to be made to the depreciation G/L accounts, corrections are made by Plant Accounting through the Fixed Assets module; this will fix previous mispostings and will post the future charges correctly.

IV. General Guidelines for Depreciable Life

A. Fixed Assets

Land & Land Improvements

Assets

Normal Depreciable Life

170100 Land

Not Depreciable

170200 Land Improvements

5 - 20 years

171000 Buildings

AssetsNormal Depreciable Life
  • Category I: Fire resistant bearing walls, column beams, floor and roof deck

80 years

  • Category II: Same as Cat. I, except walls are precast stucco panels with metalstuds and gypsum wallboard

50 years

  • Category III: Exterior bearing and non-bearing walls and partitions, floors and roofs are wholly or partly wood

30 years

  • Category IV: Same as Cat. III, except the exterior outside wall is wood or metal

20 years

  • Category V: Greenhouses, tool sheds, fuel storage facilities, etc.

10 years

  • Category VI: Solid brick and concrete masonry exterior walls

60 years

  • Category VII: Exterior walls and partitions or interior walls are fire resistant

40 years

Utilities & Building Appurtenances

Asset

Normal Depreciable Life

   172100 Building Service Machinery and Equipment

10 - 25 years

   172200 Other Building Facilities

5 - 20 years

   172300 Inside Piping and Wiring

10 - 20 years

   172400 Outside Piping and Wiring

25 years

   172700 Permanent Interior Furnishings

5 years

Unifinshed Plant & Equipment

Fixed Assets

Normal Depreciable Life

   178000 Asset Under Construction - Buildings

Not Depreciable

Duke Communication System (Tel-Com)

Fixed Assets

Normal Depreciable Life

178600 Station Apparatus

15 years

178700 Station Connections

10 years

178800 Central Office (Switcher)

30 years

178900 Large Private Branch Exchange

15 years

179000 Underground Cable

35 years

179100 Buried Cable

25 years

179400 Cablevision Apparatus

15 years

179500 Underground Conduit and Manholes

60 years

179600 Microwave Equipment

20 years

179700 Microwave Tower

25 years

B. Movable Assets

Ships And Vessels

Asset

Normal Depreciable Life

 174000 Ships and Vessels - Inboard Powered

20 years

 174000 Ships and Vessels - Outboard Powered

5 years

Machinery and Equipment

Asset

Normal Depreciable Life

175000 Machinery and Equipment

Various

Vehicles

Asset

Normal Depreciable Life

175100 Vehicles - Heavy

8 years

175100 Vehicles - Light

4 years

175100 Vehicles - P. R. T. Cars

12 years

LIbrary

Assets

Normal Depreciable Life

176100-176800 General Acquisitions

1 year

Furniture, Furnishings, Office machines & Equipment

Assets

Normal Depreciable Life

177100 Furniture and Furnishings

10-15 years

177200 Office Machines and Equipment

5 years

177500 Construction/Renovation Minor Capital Acquisitions

3 -7 years

Computers And Software

Asset

Normal Depreciable Life

177300 Midrange and Mainframe Computers

4 - 5 years

177400 Personal Computers

4 years

177600 Computer Software

5 years

177700 Major Computer Software

7 years

Non-Depreciable

Asset

Normal Depreciable Life

174600 Agency Owned Real Property

Not Depreciable

174700 Government Owned Property

Not Depreciable

174800 Agency Owned Personal Property

Not Depreciable

176900 Fine Art

Not Depreciable

178300 Asset Under Construction - Equipment

Not Depreciable

Owner

Plant Accounting

Issued Date

January 1, 2000

Last Revised

July 1, 2015

Review Frequency

Oct 2004

Policy types

GAP - Plant, Property, and Equipment

Categories

GAPs - Plant/Property/Equipment