WiseCalc

Depreciation Calculator

Illustrate annual book depreciation using straight-line, pure double declining balance or sum-of-years digits, with a salvage floor.

Illustrative book schedule in USD: entered asset cost is the starting basis; salvage is a floor between zero and cost; useful life is 1–30 whole years. Each expense covers a full year and book values are year-end balances. This is not a market-value forecast or a tax-deduction calculation; acquisition dates, partial years, tax conventions and allowances are excluded. Amounts are calculated before rounding each displayed value to cents.

Inputs

$
$0$1,000,000
$
$0$50,000
years
1 years30 years

Results

Total Depreciation
$45,000.00
Total value depreciated over the asset's life
Final Book Value
$5,000.00
Remaining value at the end of useful life
First Year's Depreciation
$9,000.00
Depreciation expense for the first year

Depreciation Schedule

  • Annual Depreciation
  • Book Value

  1. Year 1: Opening book value: $50,000.00; Annual Depreciation: $9,000.00; Book Value: $41,000.00.

  2. Year 2: Opening book value: $41,000.00; Annual Depreciation: $9,000.00; Book Value: $32,000.00.

  3. Year 3: Opening book value: $32,000.00; Annual Depreciation: $9,000.00; Book Value: $23,000.00.

  4. Year 4: Opening book value: $23,000.00; Annual Depreciation: $9,000.00; Book Value: $14,000.00.

  5. Year 5: Opening book value: $14,000.00; Annual Depreciation: $9,000.00; Book Value: $5,000.00.

Model and timing

Illustrative book schedule in USD: entered asset cost is the starting basis; salvage is a floor between zero and cost; useful life is 1–30 whole years. Each expense covers a full year and book values are year-end balances. This is not a market-value forecast or a tax-deduction calculation; acquisition dates, partial years, tax conventions and allowances are excluded. Amounts are calculated before rounding each displayed value to cents.

Pure double declining balance applies 2 ÷ useful life to each opening book value, capped at the salvage floor. It does not switch to straight-line or force a final write-down, so the final book value may exceed salvage.