Close this search box.

Table of Contents

Double Declining Balance Depreciation Method (DDB)


The Double Declining Balance Depreciation Method (DDB) is a type of accelerated depreciation accounting technique. It doubles the annual depreciation expense associated with a tangible asset compared to the straight-line depreciation method. This means more of the asset’s total cost is depreciated in the early years of the asset’s life and less in the later years.


The phonetics of “Double Declining Balance Depreciation Method (DDB)” is:- Double: /ˈdʌbl/- Declining: /dɪˈklaɪnɪŋ/- Balance: /ˈbæləns/- Depreciation: /dɪˌpriːʃiˈeɪʃən/- Method: /ˈmɛθəd/- DDB: /ˈdiː diː biː/

Key Takeaways

<ol><li>Double Declining Balance Depreciation Method (DDB) is an accelerated depreciation method. This means it allows for higher depreciation expenses in the earlier years of an asset’s life and lower expenses as the asset ages. This can be beneficial for businesses that prefer to charge most of an asset’s cost to depreciation early in its lifespan.</li><li>The calculation of DDB involves doubling the straight-line depreciation rate. That means if the straight-line depreciation rate is 20%, it will be 40% for DDB. This percentage is then applied to the asset’s book value at the start of each period to calculate the depreciation expense.</li><li>However, despite its aggressive depreciation expense in the early years, the DDB does not result in a zero book value. When the book value approaches its residual or salvage value, the method switches to straight line to ensure the asset does not depreciate below its residual value.</li></ol>


The Double Declining Balance Depreciation Method (DDB) is important in business/finance as it’s a method of accelerated depreciation which allows businesses to write off assets more quickly in earlier years of the life of an asset. The main advantage of this method is that it can significantly reduce a company’s taxable income in the early stages of an asset’s life, as it results in larger depreciation expenses initially. Thus, DDB can be favorable for businesses looking to defer tax liabilities, manage profits, and effectively allocate costs based on the usage of the asset. It’s also beneficial for assets that lose value faster in the earlier years, such as technological equipment.


The Double Declining Balance Depreciation Method (DDB) serves as a key tool for businesses to reflect the depreciating value of their assets in a manner that directly appeals to their financial realities. At its core, DDB is an accelerated depreciation methodology, accounting for the fact that certain assets, such as equipment or vehicles, tend to lose more of their value early on in their lifespan. By increasing the depreciation expense in the early years and then gradually reducing this expense over time, companies can more accurately reflect the wear and tear or obsolescence of these assets in their financial reports.Apart from an accurate representation of asset depreciation, DDB also offers a strategic tax advantage for businesses. Since this method indicates a higher depreciation expense upfront, it reduces the company’s reported earnings, therefore, lowering the income tax for those years. Moreover, it allows businesses to reinvest the resulting savings back into their operations sooner. However, the key is to use DDB judiciously, as the higher early depreciation could be offset by a comparatively low depreciation expense in the latter years of an asset’s life.


1. Manufacturing Industry: A manufacturing company purchases heavy machinery for its production line. The machinery is expensive and is expected to be the most productive in the early years of its usage. So, the company might opt to use the Double Declining Balance Depreciation Method (DDB) to reflect higher depreciation expenses in the earlier years when the machinery is most productive. This leaves lower depreciation expense towards the end of the asset’s useful life.2. Automobile Industry: Car rental or leasing companies are another example. When a new car is purchased, its market value depreciates faster in the first few years. Using the DDB method, these companies can accommodate the steep depreciation value of the vehicles in their financial records, providing a more accurate reflection of the assets’ value.3. Tech Industry: A tech company might buy expensive servers for its data centers. Given the rapid ontological changes in the tech industry, these servers might have a higher productive output in the earlier years and could become obsolete sooner. In such a case, the DDB depreciation method might be a better approach, allowing for more depreciation expense to be recorded in the earlier years compared to the later years.

Frequently Asked Questions(FAQ)

What is Double Declining Balance Depreciation Method (DDB)?

The Double Declining Balance Depreciation Method (DDB) is an accelerated depreciation method that allows businesses to write-off more depreciation expense in the early years of an asset’s useful life. It essentially doubles the rate of traditional straight-line depreciation.

When is DDB typically applied?

DDB is typically applied for assets that lose their value quickly. These include many types of technology equipment or machinery. It’s most beneficial for businesses that want to recoup their investment faster.

How is DDB calculated?

DDB is calculated by doubling the straight-line depreciation rate. This rate is typically 1 divided by the useful life of the asset. So, if the straight-line rate is 10%, the DDB rate would be 20%.

What are the advantages of using DDB?

DDB allows a larger tax deduction in the early years of an asset’s life, as most of the depreciation is accounted for upfront. This can offer cash-flow benefits to businesses.

Are there any disadvantages or limitations to using DDB?

Although DDB allows for faster depreciation, it does not take salvage value into account initially. The method may also lead to a small remaining book value at the end of the asset’s life, rather than being fully depreciated.

How does DDB differ from other depreciation methods?

DDB is an accelerated depreciation method that results in larger depreciation expenses in the early years of an asset’s life compared to methods like straight-line depreciation which spreads out the cost evenly over the asset’s useful life.

What type of assets is the DDB method not suitable for?

DDB may not be suitable for assets that have a long useful life or those that depreciate uniformly over their lifespan, as it could result in an unexpectedly high book value left at the end of the asset’s life cycle.

Does DDB affect an organization’s profit and loss?

Yes, the DDB method can affect a company’s profit and loss statement. Because DDB accelerates depreciation, it reduces the net income in the earlier years of an asset’s life. Later, when depreciation slows down, net income may be higher.

Related Finance Terms

  • Accelerated Depreciation: A depreciation method where an asset loses value at a faster rate early in its life, as with DDB.
  • Book Value: The value of an asset according to its balance sheet account balance, which can be further depreciated using methods like DDB.
  • Depreciation Expense: The amount that is periodically deducted from the earnings of an asset in order to account for its decrease in value, which can be calculated via DDB.
  • Salvage Value: This is the estimated residual value of an asset at the end of its useful life. It’s subtracted from the cost of the asset to determine the total amount that can be depreciated.
  • Useful Life: The estimated duration of utility of an asset, during which depreciation like DDB is applied.

Sources for More Information

About Our Editorial Process

At Due, we are dedicated to providing simple money and retirement advice that can make a big impact in your life. Our team closely follows market shifts and deeply understands how to build REAL wealth. All of our articles undergo thorough editing and review by financial experts, ensuring you get reliable and credible money advice.

We partner with leading publications, such as Nasdaq, The Globe and Mail, Entrepreneur, and more, to provide insights on retirement, current markets, and more.

We also host a financial glossary of over 7000 money/investing terms to help you learn more about how to take control of your finances.

View our editorial process

About Our Journalists

Our journalists are not just trusted, certified financial advisers. They are experienced and leading influencers in the financial realm, trusted by millions to provide advice about money. We handpick the best of the best, so you get advice from real experts. Our goal is to educate and inform, NOT to be a ‘stock-picker’ or ‘market-caller.’ 

Why listen to what we have to say?

While Due does not know how to predict the market in the short-term, our team of experts DOES know how you can make smart financial decisions to plan for retirement in the long-term.

View our expert review board

About Due

Due makes it easier to retire on your terms. We give you a realistic view on exactly where you’re at financially so when you retire you know how much money you’ll get each month. Get started today.

Due Fact-Checking Standards and Processes

To ensure we’re putting out the highest content standards, we sought out the help of certified financial experts and accredited individuals to verify our advice. We also rely on them for the most up to date information and data to make sure our in-depth research has the facts right, for today… Not yesterday. Our financial expert review board allows our readers to not only trust the information they are reading but to act on it as well. Most of our authors are CFP (Certified Financial Planners) or CRPC (Chartered Retirement Planning Counselor) certified and all have college degrees. Learn more about annuities, retirement advice and take the correct steps towards financial freedom and knowing exactly where you stand today. Learn everything about our top-notch financial expert reviews below… Learn More