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Straight-Line Car Depreciation Per Year Calculator

Annual depreciation = (cost − residual) / useful_life.

Compute the straight-line annual depreciation of a vehicle: (purchase price − residual value) / useful life in years. Reports year-by-year book value, total depreciation, and depreciation per mile if annual mileage is provided. Useful for business vehicle expense accounting (IRS MACRS differs for tax).

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

$
$
years
mi/yr

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Annual dep. = (Cost − Residual) / Years.

In depth

Compute the straight-line annual depreciation of a vehicle: (purchase price − residual value) / useful life in years. Reports year-by-year book value, total depreciation, and depreciation per mile if annual mileage is provided. Useful for business vehicle expense accounting (IRS MACRS differs for tax).