Definition
Diminishing-Balance Method (Reducing-Balance Method) refers to a method of computing the depreciation of a fixed asset in an accounting period. In this method, the depreciation percentage is applied to the asset’s net book value (the depreciated value at the beginning of the period). This approach leads to a higher depreciation charge in the earlier years and gradually reduces the annual depreciation charge over time. The formula to determine the annual percentage can be given as:
\[ \text{Annual Depreciation Percentage} = \frac{1 - \sqrt[N]{\frac{S}{C}}}{1} \]
Where:
- N is the estimated life in years,
- S is the estimated scrap value at the end of its useful life, and
- C is the original cost.
Examples
Example 1: Machinery Depreciation
A company purchases machinery for $50,000 expected to last for 10 years with a scrap value of $5,000. Using the diminishing-balance method, the annual depreciation percentage is calculated. For this machinery, by applying the formula, this results in a higher depreciation charge in the earlier years and a gradually decreasing charge in later years.
Example 2: Vehicle Depreciation
A business buys a delivery vehicle for $30,000, with an estimated useful life of 5 years and a scrap value of $3,000. Using the diminishing-balance method, they calculate the annual depreciation, which declines over the 5-year period, reflecting the reducing balance approach.
Frequently Asked Questions (FAQ)
1. How does the diminishing-balance method differ from the straight-line method?
The diminishing-balance method calculates depreciation based on a fixed percentage of the asset’s beginning balance each year, leading to a higher depreciation rate initially. In contrast, the straight-line method evenly distributes depreciation expense over the useful life of the asset.
2. What are the advantages of the diminishing-balance method?
The diminishing-balance method better matches the depreciation expense with the actual wear and tear of the asset, resulting in a higher expense when the asset is more productive.
3. Can all assets be depreciated using the diminishing-balance method?
Not all assets suit the diminishing-balance method. It is more commonly used for assets that lose value rapidly initially but still retain some residual value.
4. How is the annual percentage rate determined in the diminishing-balance method?
The annual percentage rate is derived using the formula mentioned above, considering the asset’s original cost, its estimated useful life, and the scrap value.
5. Why would a company elect to use the diminishing-balance method?
A company might choose the diminishing-balance method to reflect a higher depreciation expense when the asset is new and being used intensely, which might align with business performance and the actual reduction in value more accurately.
Related Terms
- Depreciation: The systematic allocation of the cost of a tangible asset over its useful life.
- Fixed Asset: A long-term tangible piece of property or equipment that a firm owns and uses in its operations to generate income.
- Net Book Value: The value of an asset after accounting for depreciation or amortization.
Online References
Suggested Books for Further Studies
- Intermediate Accounting by Donald E. Kieso, Jerry J. Weygandt, and Terry D. Warfield
- Financial Accounting by Walter T. Harrison Jr., Charles T. Horngren, C. William (Bill) Thomas
- Accounting Made Simple by Mike Piper
Accounting Basics: “Diminishing-Balance Method” Fundamentals Quiz
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