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Straight-Line Depreciation Calculator

Spreads an asset's cost, less its salvage value, evenly over its useful life.

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Result…

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How it's calculated

Annual depreciation = (cost − salvage value) ÷ useful life

The simplest and most common method: the same expense every year until the book value reaches salvage. An asset bought partway through a year usually takes a part-year charge in its first year; divide the annual figure by 12 and multiply by the months owned.

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