Declining Balance Depreciation Calculator

Declining Balance Depreciation Calculator. Calculate declining balance depreciation for any asset over its useful life. Enter your asset cost, salvage value, useful life (years), and depreciation factor (e.g. 2 for double declining balance) to get a full depreciation schedule showing annual depreciation expense, accumulated depreciation, and ending book value for every year. Also try the Depreciation Calculator (general).

Results

Year 1 Depreciation

Annual Depreciation Rate

Total Depreciation

Final Book Value

Results Table

What is the declining balance depreciation method?

The declining balance method is an accelerated depreciation approach that applies a fixed percentage rate to the asset's remaining book value each year. Because the book value decreases over time, the depreciation expense is highest in the early years and gradually decreases — unlike straight-line depreciation which spreads the cost evenly. See also our calculate Appliance Depreciation.

What is double declining balance (DDB) depreciation?

Double declining balance (DDB) is the most common form of declining balance depreciation. It uses a depreciation factor of 2, meaning the annual rate is 200% of the straight-line rate. For an asset with a 5-year life, the straight-line rate is 20%, so DDB applies a 40% rate to the remaining book value each year.

How is the declining balance depreciation rate calculated?

The rate is calculated as: Rate = Depreciation Factor ÷ Useful Life. For example, with a factor of 2 and a 5-year life, the rate = 2 ÷ 5 = 0.40, or 40%. This rate is then multiplied by the opening book value each year to get the depreciation expense for that period.

What happens when the book value approaches salvage value?

Once the declining balance depreciation for a given year would reduce the book value below the salvage value, the depreciation is capped at the difference between the current book value and the salvage value. The asset is never depreciated below its salvage value. You might also find our calculate Annual Depreciation, Total Depreciable Amount & Annual Depreciation Rate — Equipment Depreciation useful.

What is salvage value and why does it matter?

Salvage value (also called residual or scrap value) is the estimated worth of an asset at the end of its useful life. It matters because depreciation calculations only recover the depreciable cost — which is the original cost minus salvage value. An asset should never be depreciated below its salvage value.

When should I use declining balance instead of straight-line depreciation?

Declining balance is preferred when an asset loses value more rapidly in its early years — such as vehicles, computers, and machinery. It provides larger tax deductions in the early years of ownership, which can improve cash flow. Straight-line is better when an asset's utility is consumed evenly over its life.

What depreciation factor should I use?

The most common factors are 2 (Double Declining Balance / 200%), 1.5 (150% Declining Balance), and 1.75 (175% Declining Balance). The IRS and accounting standards often specify which factor to use for different asset classes. When in doubt, use 2 for a standard double declining balance schedule.

Is declining balance depreciation the same as MACRS?

Not exactly. MACRS (Modified Accelerated Cost Recovery System), used for U.S. tax purposes, starts with a declining balance method (200% or 150% depending on asset class) and then switches to straight-line depreciation when that yields a higher deduction. This calculator computes pure declining balance without the MACRS switch-over rule.