Depreciation, Amortization, and Depletion (DD&A)

Depreciation, amortization, and depletion are all accounting methods used to systematically allocate the cost of a company’s long-term assets over their useful lives. Each term applies to a different type of asset, but they all serve the same purpose: to match the cost of an asset to the revenue it helps generate over multiple periods, in accordance with the matching principle.

Defining the Trio: Depreciation, Amortization, and Depletion

While they serve a similar function, each term is specific to a certain asset class:

• Depreciation: The process of expensing a tangible asset (e.g., machinery, buildings, vehicles) over its useful life.
• Amortization: The process of expensing an intangible asset (e.g., patents, trademarks, copyrights) over its useful life.
• Depletion: The process of expensing a natural resource (e.g., oil reserves, mineral deposits, timber) as it is consumed or extracted.

Why These are Considered Non-Cash Expenses

Crucially, depreciation, amortization, and depletion are all non-cash expenses. This means that when a company records these expenses, no cash leaves the company’s bank account. The actual cash outflow occurred in the past when the asset was originally purchased. These expenses are simply an accounting mechanism to spread that initial cost over time.

Illustration

If a company buys a machine for $100,000cash,thecashisspentatthemomentofpurchase.Ifthemachinehasa10-yearlife,thecompanymightrecord$10,000 of depreciation expense each year. That $10,000expensereducesprofitannually,butitdoes{n}^{\prime }tinvolveanew$10,000 cash payment.

“The intelligent investor is a realist who sells to optimists and buys from pessimists.”

— Benjamin Graham, Author, The Intelligent Investor The Intelligent Investor (1949)

The Dual Impact: Income Statement vs. Cash Flow Statement

On the income statement, DD&A is treated as an operating expense, which reduces a company’s reported net income (profit). However, on the cash flow statement (using the indirect method), the treatment is reversed.

The Core Rule

Because depreciation, amortization, and depletion are non-cash charges that reduced net income, they must be added back to net income in the Operating Activities section. This adjustment is necessary to reconcile accrual-based profit to the actual cash generated by operations.

Failing to add back these expenses would significantly understate a company’s operating cash flow.

How It’s Presented in Financial Statements

Companies often group these expenses together for reporting purposes.

• On the Income Statement: DD&A may be embedded in other operating expenses like Cost of Goods Sold or SG&A, or it may be listed as a separate line item.
• On the Cash Flow Statement: It is almost always shown as a single line item, such as ‘Depreciation and amortization’ or ‘Depreciation, depletion and amortization (DD&A)’, in the operating activities section. This figure represents a positive adjustment (an add-back) to net income.

Example: Apple Inc.

Apple’s cash flow statement shows a single line for ‘Depreciation and amortization’ as a positive adjustment to net income in its operating activities section.

Example: Chevron Corporation

As a natural resource company, Chevron reports a combined ‘Depreciation, depletion and amortization’ line on both its income statement (as an expense) and its cash flow statement (as an add-back).