Depreciation
Depreciation is the accounting method of allocating a tangible asset’s original cost (minus salvage value) across its estimated useful life, representing the decline in value due to wear, aging, or obsolescence. In CMMS/Asset Reliability, it determines the asset’s Current Book Value to inform financial lifecycle decisions.
On the shop floor, depreciation is applied by inputting Purchase Date, Purchase Price, Expected Useful Life, and Salvage Value into the CMMS asset record to auto-calculate annual depreciation and current book value. This data is aligned with Finance ERP to eliminate Ghost Assets and synchronize financial and operational records. Depreciation schedules are used to time replacement requests when annual maintenance costs exceed the annualized cost of new equipment. SMRP Best Practices recommend triggering replacement using CMARV (Corrective Maintenance to Replacement Asset Value) combined with MTBF trend, not book value alone.
What formula calculates units-of-production depreciation?
Depreciation per Unit = (Cost − Salvage Value) ÷ Total Expected Units; Annual Depreciation = Actual Units Produced × Depreciation per Unit.
Which depreciation methods are used for tax vs. financial reporting?
Straight-line (equal annual expense) is standard for financial reporting; declining balance and sum-of-years’ digits (accelerated, front-loaded) are used for tax purposes.
How does maintenance affect depreciation ROI?
Effective maintenance extends useful life, spreading cost over more productive time and improving ROI; poor maintenance causing premature failure forces a write-off of remaining book value.
What is the CMARV decision rule?
CMARV = (Annual Corrective Maintenance Cost ÷ Current Replacement Asset Value) × 100; replace when CMARV exceeds threshold combined with deteriorating MTBF.
How to reconcile depreciation schedules with operational useful life?
Join fixed asset register (NetSuite: asset ID, accumulated depreciation, net book value) with operational condition data (Fiix: status, criticality, downtime, repeat failure codes) to triage mismatches and route CapEx decisions.