What Is Written-Down Value (WDV)?
Written-down value originated as a term describing what remains of an asset’s cost after it has been reduced through depreciation. In this sense, WDV represents the asset’s current carrying amount—cost minus accumulated depreciation and impairment losses and is therefore identical to net book value (NBV).
The term is also used to describe a specific depreciation method, the WDV method, in which each period’s depreciation is calculated as a fixed percentage of the asset’s opening book value rather than its original cost. This produces a declining depreciation charge over time: highest in the first year, reducing in each subsequent year as the book value falls.
The two usages coexist in practice, particularly in Indian accounting and tax contexts. The Income Tax Act in India prescribes block-rate depreciation using the WDV method for tax purposes, making the term especially familiar to finance teams in India. In contrast, US tax depreciation typically follows MACRS, which is also a form of accelerated depreciation but applied using predefined schedules rather than a pure percentage-on-book-value approach.
TL;DR
Written-down value (WDV) carries two related meanings in fixed asset accounting. First, as a value concept, it represents the remaining carrying amount of an asset after depreciation—effectively the net book value. Second, as a depreciation method (also called reducing balance or declining balance), it applies a fixed percentage to the opening book value each period, resulting in a front-loaded depreciation charge. Because both meanings are widely used, organizations must clearly specify which one they intend.
WDV as a Value (Carrying Amount)
When WDV refers to carrying value:
WDV = Original Cost − Accumulated Depreciation − Accumulated Impairment Losses
Item | Amount |
| Original cost of machinery | $48,000 |
| Accumulated depreciation (5 years, straight-line) | $24,000 |
| Accumulated impairment loss | $2,400 |
| Written-Down Value (carrying amount) | $21,600 |
In this usage, WDV and NBV are interchangeable. Both describe the balance sheet carrying amount of the asset at the measurement date.
WDV as a Depreciation Method (Reducing Balance)
When WDV refers to the depreciation method:
Annual Depreciation = Opening Written-Down Value × WDV Rate (%)
The WDV rate is applied to the opening book value each year—not the original cost. In contrast, straight-line depreciation charges the same amount each year based on the original cost.
Year | Opening WDV (INR) | WDV Rate | Depreciation | Closing WDV |
| Year 1 | $12,000 | 25% | $3,000 | $9,000 |
| Year 2 | $9,000 | 25% | $2,250 | $6,750 |
| Year 3 | $6,750 | 25% | $1,695 | $5,085 |
| Year 4 | $5,085 | 25% | $1,270 | $3,810 |
| Year 5 | $3,810 | 25% | $953 | $2,860 |
Under the WDV method, the asset’s book value never technically reaches zero; it continues to decline asymptotically. In practice, a residual or scrap value is defined, and the asset is written off or retired when the book value reaches that level. Similarly, under US GAAP, assets are depreciated down to their estimated salvage value, not zero.
WDV Method vs. Straight Line Depreciation
Factor | WDV / Reducing Balance Method | Straight Line Depreciation |
| Calculation base | Opening book value each period — declines over time | Original depreciable cost — fixed |
| Depreciation pattern | Higher in early years, lower in later years | Equal charge every period |
| Book value at the end of life | Approaches but rarely reaches zero | Reaches salvage value exactly at the end of useful life |
| Tax alignment (India) | Widely used for the Income Tax Act block depreciation | Used for book purposes; less common for tax in India |
| Tax alignment (US) | A similar concept is used in accelerated depreciation methods (e.g., declining balance, MACRS) | Common for financial reporting under US GAAP |
| Best fit | Assets that lose value faster in the early years | Assets with uniform benefit over time |
| Complexity | Recalculated each period on a declining base | Single calculation for the entire asset life |
WDV vs. Net Book Value: Are They the Same?
In most practical contexts, WDV (as a value) and NBV are identical — both describe the asset’s carrying amount after accumulated depreciation and impairment. The distinction matters in one specific scenario: when WDV refers to the carrying amount calculated specifically using the WDV reducing-balance method, it may differ from what another organization calls NBV if they use straight-line depreciation.
The safest approach: when writing policies, audit reports, or financial notes, specify both the value and the method used (calculated using the straight-line/WDV method) to eliminate ambiguity.
Best Practices for Managing WDV
- Clarify in your depreciation policy whether ‘WDV’ in your organization refers to the carrying value concept or the reducing-balance method — inconsistent usage across teams and documents creates confusion during audits.
- For tax purposes in India, maintain separate WDV block calculations per the Income Tax Act, as tax WDV may differ from book WDV due to different rates and timing of depreciation. For US entities, maintain separate tax depreciation schedules under MACRS alongside book depreciation (GAAP), as timing differences are common.
- Review WDV-method assets for economically useful life each year — because WDV depreciation front-loads charges, assets can show very low WDV in later years while still actively generating value, which may trigger premature replacement decisions based on book value alone.
- When comparing two assets for replacement analysis, use lifecycle cost and current operational performance — not WDV alone. A low WDV does not mean replacement is economically justified.
How AssetCues Handles WDV
AssetCues supports WDV (reducing balance) depreciation as a configurable method alongside straight-line and other approaches. The platform calculates depreciation on opening book value each period, maintains accurate WDV records for both book and tax purposes, and provides the depreciation schedule history needed for audit defence and lifecycle analysis.
CA Sunny Shah
