ClueLuma

Straight-line depreciation calculator

Annual depreciation is calculated as (Basis − Salvage)/n. Use the stated system boundary and matching input units.

Dep=Basis−Salvagen\text{Dep} = \frac{\text{Basis} - \text{Salvage}}{n}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

$
$
year
$/year

Worked example

Given

  • Basis\text{Basis} = 100,000 $
  • Salvage\text{Salvage} = 10,000 $
  • nn = 10 year
Dep=100,000−10,00010=9,000\text{Dep} = \frac{100{,}000 - 10{,}000}{10} = 9{,}000

Symbols and units

SymbolMeaningUnit
Dep\text{Dep}annual depreciation$/year
Basis\text{Basis}depreciable starting basis$
Salvage\text{Salvage}depreciation residual$
nndepreciation lifeyear

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Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.