Double Declining Balance Calculator

Double declining balance (DDB) depreciation — accelerated write-off at twice the straight-line rate.

Enter values

Result

First-year depreciation

$20,000.00

Depreciation schedule

Year	Depreciation	Accumulated	Book value
1	20,000	20,000	30,000
2	12,000	32,000	18,000
3	7,200	39,200	10,800
4	4,320	43,520	6,480
5	1,480	45,000	5,000

Double declining balance (DDB) depreciation — accelerated write-off at twice the straight-line rate.

Also known as: ddb depreciation, double declining, 200% declining balance.

Enter asset cost, salvage value, useful life.
The result updates instantly as you type — press Calculate (or Enter) at any time.
Review the breakdown shown under the main result.
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Dep = 2 × book value / life

Using the values pre-filled in the calculator above:

the calculator returns: