Small business calculator

Accumulated Depreciation Calculator

Estimate straight-line depreciation for a fixed asset: enter cost, salvage value, useful life in years, and years elapsed. You get annual depreciation, accumulated depreciation, and net book value.

Inputs

Choose a depreciation method and enter the inputs for that method. Outputs include annual depreciation (current year), accumulated depreciation, and net book value.

Straight-line matches the simplest accounting model.
Purchase price or capitalized cost.
Expected residual value at end of useful life.
Total years to depreciate over (must be greater than zero).
How many years of depreciation have passed (0 or more).
Annual depreciation under straight-line (for comparison).
Calculated after you click Calculate.
Calculated after you click Calculate.

Results

Depreciable base is cost minus salvage. Annual depreciation is depreciable base divided by useful life. Accumulated depreciation is annual depreciation times the lesser of years elapsed and useful life.

Accumulated depreciation
Annual depreciation

Example

Asset cost is $50,000, salvage is $5,000, useful life is 10 years, and 3 years have elapsed. Depreciable base is $45,000. Annual depreciation is $4,500. Accumulated depreciation after 3 years is $13,500. Net book value is $50,000 − $13,500 = $36,500.

How it works

Depreciable base = cost of the asset − salvage value. Annual depreciation = depreciable base ÷ useful life (when useful life > 0 and salvage ≤ cost). Effective years = min(years elapsed, useful life). Accumulated depreciation = annual depreciation × effective years. Net book value = cost − accumulated depreciation.

Related tools

Accounting Profit Calculator, Break-even Calculator, or back to the Small Business calculator list.