No, capital expenditure (Capex) is not the same as property, plant, and equipment (PPE). Capex is the money a company spends to acquire or improve a long-term physical asset. PPE is the balance sheet account where that asset lives once the money has been spent. The two numbers match for a single moment, the day the asset is capitalized, and then depreciation, impairment, and further spending pull them apart.
Capex Is the Spending Event
Capex is the cash a company lays out to acquire, build, or significantly improve a physical asset that will serve the business for more than one year. A new production line, a warehouse addition, a commercial HVAC overhaul: all Capex. The defining feature is that the outlay creates or enhances a resource with a useful life beyond the current accounting period.
On the financial statements, Capex shows up as a cash outflow under investing activities on the statement of cash flows. That classification is what separates long-term investment spending from the day-to-day cost of running the business.
Federal tax law draws the same line. Under the Internal Revenue Code, amounts paid for new buildings, permanent improvements, or betterments that increase the value of property generally cannot be deducted as a current expense and must be capitalized instead.1Office of the Law Revision Counsel. 26 U.S. Code 263 – Capital Expenditures IRS regulations require capitalization regardless of the dollar amount.2Internal Revenue Service. Tangible Property Final Regulations
PPE Is the Balance Sheet Account
PPE is a category of tangible, long-term assets reported in the non-current section of a company’s balance sheet. It represents the accumulated stock of physical resources the company owns and uses in operations. You’ll also see it called “fixed assets.”
Assets belong under PPE when they share three traits: physical substance, use in producing goods or delivering services rather than being held for resale, and an expected life longer than one operating period. Manufacturing equipment, delivery trucks, office furniture, buildings, and land all qualify.
Land is the outlier. Because it doesn’t wear out, land has an indefinite useful life and is never depreciated. Every other PPE asset gets its cost systematically reduced over time, and that reduction is what eventually drives a wedge between what a company spent and what its balance sheet reports.
The One Moment Capex and PPE Are Equal
When a company makes a capital expenditure, the cost doesn’t hit the income statement. The full amount is recorded as an addition to the PPE account. That process is called capitalization, and it’s the direct link between the two figures.
The capitalized amount isn’t just the sticker price. It includes every cost necessary to bring the asset to a condition and location ready for its intended use: installation, assembly, freight, warehousing, insurance, and applicable taxes.3Federal Reserve System. Financial Accounting Manual for Federal Reserve Banks – Chapter 3 Property and Equipment A $400,000 machine that costs $30,000 to ship and $20,000 to install goes on the books at $450,000.
For that one day, Capex and the addition to PPE are the same number. The next day, they aren’t.
Why Capex and PPE Drift Apart
The day after an asset is capitalized, its balance sheet value starts declining through depreciation. Capex is a one-time event locked in the past. PPE is a living number that shrinks every reporting period.
Depreciation spreads the asset’s cost over its estimated useful life, matching the expense to the periods that benefit from the asset. Three inputs drive the calculation: the capitalized cost, the estimated useful life, and the salvage value at the end of that life. Under straight-line depreciation, a $100,000 machine with a five-year life and zero salvage generates $20,000 of depreciation expense each year.
For tax purposes, the IRS requires most tangible property placed in service after 1986 to be depreciated using the Modified Accelerated Cost Recovery System (MACRS).4Internal Revenue Service. Topic No. 704, Depreciation MACRS assigns each type of property to a recovery class with a specified life.5Internal Revenue Service. Publication 946 – How To Depreciate Property
Each year’s depreciation charge hits both major statements. On the income statement, it reduces net income. On the balance sheet, cumulative depreciation piles up in a contra-asset account called accumulated depreciation, which is subtracted from the asset’s original cost.
The Net PPE Formula
The relationship is captured in one line:
Net PPE = Gross PPE + New Capital Expenditures − Accumulated Depreciation
Gross PPE is the total historical cost of every asset the company has capitalized. Net PPE is what remains after subtracting the depreciation recorded to date. That’s the number on the balance sheet. It’s also why a company can spend $50 million on Capex over a decade and show only $18 million in net PPE. The gap is accumulated depreciation.
Impairment Widens the Gap
Depreciation assumes a steady, predictable decline in value. Reality doesn’t always cooperate. When a factory loses its main customer, a technology shift makes equipment obsolete, or a disaster damages physical assets, the carrying value of PPE may overstate what the assets are actually worth.
Under GAAP, companies test PPE for impairment whenever events or changes in circumstances suggest the carrying amount may not be recoverable. The test compares carrying amount to the undiscounted future cash flows the asset is expected to generate. If those cash flows fall short, the company writes the asset down to fair value and recognizes the difference as an impairment loss on the income statement.
An impairment loss is permanent for accounting purposes. Once recognized, the reduced carrying amount becomes the new cost basis, and the write-down cannot be reversed in a later period even if conditions improve. A $2 million asset can end up on the balance sheet at $800,000, permanently below what was originally spent.
Tax Rules Can Widen the Gap Even Faster
Standard depreciation spreads Capex over years. Two provisions in the tax code let a business deduct all or most of a qualifying asset’s cost in the year it’s placed in service, collapsing the Capex-to-PPE timeline for tax purposes while leaving the GAAP balance sheet alone.
Section 179
Section 179 lets a business elect to treat the cost of qualifying property as an immediate expense rather than a capitalized asset that gets depreciated over time.6Office of the Law Revision Counsel. 26 USC 179 – Election to Expense Certain Depreciable Business Assets For the 2026 tax year, the maximum deduction is $2,560,000, phasing out when total qualifying property placed in service during the year exceeds $4,090,000. Qualifying property includes machinery, equipment, business vehicles, off-the-shelf software, and certain improvements to nonresidential buildings such as HVAC systems and roofing.
Two limits keep Section 179 from being a blank check. The deduction cannot exceed the taxpayer’s taxable income from active trades or businesses for the year, though any disallowed amount carries forward.6Office of the Law Revision Counsel. 26 USC 179 – Election to Expense Certain Depreciable Business Assets Sport utility vehicles are capped at $25,000 regardless of purchase price.
Bonus Depreciation
Bonus depreciation under Section 168(k) works differently. Rather than an elective cap, it provides a percentage-based first-year deduction on the adjusted basis of qualified property. Following enactment of the One Big Beautiful Bill Act in 2025, bonus depreciation was permanently restored to 100 percent for qualifying property acquired and placed in service after January 19, 2025.7Internal Revenue Service. Treasury, IRS Issue Guidance on the Additional First Year Depreciation Deduction Amended as Part of the One Big Beautiful Bill The earlier phase-down that had reduced the rate to 60 percent for 2024 and 40 percent for 2025 no longer applies to property meeting the new acquisition-date requirement.8Office of the Law Revision Counsel. 26 U.S. Code 168 – Accelerated Cost Recovery System
The practical effect is significant. A $500,000 piece of equipment can, under the right circumstances, be deducted in full in year one for tax purposes. On the GAAP balance sheet, the same asset still appears as PPE and is depreciated over its useful life. Same Capex, two very different pictures.
Why the Distinction Matters
Treating Capex and PPE as interchangeable produces the wrong answer on a cash flow analysis, a tax return, and a valuation model. Capex tells you what a company invested this period; you read it off the investing section of the cash flow statement. Net PPE tells you what’s left of every past investment after depreciation and any write-downs; you read it off the balance sheet.
If Capex spikes in a given year but net PPE barely moves, accumulated depreciation is catching up with new spending. If net PPE drops sharply while Capex holds steady, an impairment charge may be the cause. If a business shows a large first-year tax deduction under Section 179 or bonus depreciation, the tax return and the book balance sheet will tell different stories about the same asset. Keeping the two concepts distinct is what makes those signals legible.