Depreciation and Amortization

Depreciation and amortization terms covering asset cost allocation, depreciation methods, reserves, and recapture.

Depreciation and Amortization covers asset cost allocation, depreciation methods, amortization, reserves, depletion, and recapture.

Use these pages when asset-cost allocation changes earnings, tax timing, cash-flow interpretation, capital intensity, or valuation adjustments. It sits inside Accounting, so readers can move up when the broader accounting context matters.

Use the table below to choose the narrower accounting branch before applying a term to a statement line, model input, audit trail, tax schedule, covenant test, or management report.

What This Branch Covers

AreaUse it for
Accelerated, Tax, and Bonus DepreciationAccelerated depreciation and bonus depreciation treatment.
Core Depreciation and Amortization ConceptsDepreciation, amortization, straight-line depreciation, and systematic cost allocation.
Depreciable Asset Bases and Resource DepletionDepreciable assets, depreciable bases, depletion, wear and tear, and depreciated cost.
Depreciation Methods and ConventionsDepreciation terms covering useful lives, rates, schedules, reducing-balance methods, production units, and timing conventions.
Tax Depreciation and RecaptureDepreciation terms for accelerated allowances, MACRS-style systems, tax conventions, and recapture treatment.
Value Changes and Performance before DepreciationAccounting and finance terms for appreciation, market depreciation, unrealized depreciation, capital sources, and OIBDA.

What to Check

  • Asset cost, useful life, residual value, placed-in-service date, method, convention, and accumulated depreciation or amortization.
  • Book policy, tax method, depreciation schedule, impairment history, disposal record, and recapture calculation.
  • Effect on EBIT, EBITDA, taxable income, book value, deferred tax, capex, and maintenance-versus-growth spending analysis.
  • Whether the figure is book depreciation, tax depreciation, depletion, amortization, or noncash add-back.
  • Comparability across methods, asset ages, reporting periods, and capital intensity.

Common Mistakes

  • Treating depreciation as current cash spending.
  • Ignoring differences between book and tax depreciation.
  • Comparing EBITDA without considering replacement capex and asset age.
  • Assuming accelerated depreciation changes economic useful life rather than tax or earnings timing.

Depreciation and amortization content is educational and does not provide accounting, tax, audit, legal, investment, or valuation advice.

In this section

Choose a subsection first. Deeper term pages live inside each subsection, which keeps large topic hubs readable.

Accelerated Depreciation

Accelerated book methods and U.S. tax provisions that move depreciation deductions or expense into earlier periods.

Core Allocation Concepts

Core concepts for allocating tangible and finite-lived intangible asset costs over their periods of use.

Depreciable Assets

Depreciable amounts, carrying values, and natural-resource depletion concepts used in asset-cost allocation.

Methods & Conventions

Depreciation terms covering useful lives, rates, schedules, reducing-balance methods, production units, and timing conventions.

Tax Depreciation

Depreciation terms for accelerated allowances, MACRS-style systems, tax conventions, and recapture treatment.

Value Changes

Asset-value changes and operating-performance measures that must be distinguished from accounting depreciation.

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