In business accounting and tax, a capital item is any long-lived resource a business buys to generate income or provide a lasting benefit, rather than to sell to customers or use up within the year. Because the cost gets spread across multiple tax years through depreciation or amortization instead of being deducted all at once, capital items sit on the balance sheet as assets and change your tax return in ways ordinary supplies and repairs do not. Getting the classification right matters: treating a capital purchase as a routine expense is a common audit trigger, and missing available write-offs leaves real money behind.
What Makes Something a Capital Item
The defining feature is staying power. If a business buys something it expects to use for more than one year, and that something supports operations rather than sitting on a shelf waiting to be sold, it is a capital item. Inventory gets sold. Supplies get used up. Capital items stick around and keep producing value.
Tangible capital items are the physical things most people picture: manufacturing equipment, delivery trucks, office furniture, commercial buildings, computer systems. Intangible capital items lack physical form but carry real economic value, including patents, copyrights, trademarks, and customer lists. Both categories get similar accounting treatment: the cost is recorded as an asset and reduced gradually over time rather than hitting the income statement in one lump.
For an item to generate depreciation deductions, it must be used in a trade or business or held for investment, and it must be “placed in service,” meaning ready and available for its intended function. A machine sitting unused in storage does not generate deductions.
The recorded cost is not just the sticker price. It includes everything needed to get the asset operational: sales tax, shipping, installation, and any required testing all roll into the asset’s basis on the balance sheet.
When You Can Skip Capitalization
Not every long-lived purchase has to go through capitalization. The IRS provides a de minimis safe harbor election that lets a business expense smaller items immediately. A business with an applicable financial statement (generally an audited one) can expense items costing up to $5,000 each. A business without an applicable financial statement can expense items up to $2,500 each.1Internal Revenue Service. Tangible Property Final Regulations The election has to be made annually on the tax return, and the business needs a written accounting policy in place at the start of the tax year specifying its threshold.
Anything above the applicable threshold must be capitalized. A business also sets its own internal capitalization policy, which can be lower than the IRS safe harbor. Many companies capitalize everything above $500 to $2,500 and expense everything below.
Repairs You Can Deduct vs. Improvements You Must Capitalize
One of the trickier judgment calls involves spending on property you already own. Routine repairs and maintenance are immediately deductible. If the work rises to the level of an “improvement,” the cost must be capitalized and recovered over time.
The IRS uses three tests to decide whether work on existing property is an improvement:
- Betterment: the work fixes a pre-existing defect, physically enlarges the property, or materially increases its capacity, productivity, or output.
- Restoration: the work replaces a major component, returns nonfunctional property to working condition, or rebuilds it to like-new condition.
- Adaptation: the work converts the property to a new or different use that was not its original purpose.
Trigger any one of those tests and the cost has to be capitalized.1Internal Revenue Service. Tangible Property Final Regulations Repainting an office is a deductible repair. Gutting the office and converting it into a laboratory is an adaptation that must be capitalized. Replacing a whole HVAC system is a restoration; replacing a worn belt inside the existing system is a repair. Getting this line wrong is one of the most common audit triggers for small businesses.
How You Recover the Cost Over Time
Once a capital item lands on the balance sheet, its cost is allocated across the years it produces value. For tangible assets, that process is depreciation. For intangibles, it is amortization. Both reduce taxable income each year, which is the main ongoing tax benefit of owning capital assets.
Depreciation Under MACRS
For tax purposes, the IRS requires most tangible business property to use the Modified Accelerated Cost Recovery System (MACRS). Assets are assigned to property classes with fixed recovery periods. Automobiles, office machinery, and computers fall into the five-year class. Office furniture and fixtures fall into the seven-year class. Residential rental buildings use a 27.5-year recovery period; commercial buildings use 39 years.2Internal Revenue Service. Publication 946 – How To Depreciate Property MACRS generally front-loads the deductions, giving larger write-offs in the early years of ownership.
Annual depreciation and amortization deductions are reported on Form 4562.3Internal Revenue Service. About Form 4562, Depreciation and Amortization
Amortization of Intangibles
Intangible assets acquired in connection with a business, known as Section 197 intangibles, are amortized ratably over 15 years starting in the month of acquisition. This category covers goodwill, customer lists, covenants not to compete, patents, and certain licenses.4Office of the Law Revision Counsel. 26 USC 197 – Amortization of Goodwill and Certain Other Intangibles There is no accelerated method for Section 197 intangibles. The deduction is the same straight-line amount every year for 15 years.
Depreciation and amortization both reduce the asset’s adjusted basis. That adjusted basis matters when you sell, because it drives how much gain you have to recognize.
Deducting the Full Cost Up Front
You do not always have to spread deductions over years. Two provisions let you deduct the full cost, or most of it, in the year you place the asset in service.
Section 179 Expensing
Section 179 lets a business deduct the entire cost of qualifying equipment and software in the year of purchase, up to an annual dollar limit that is adjusted for inflation. The deduction phases out dollar-for-dollar once total qualifying purchases exceed a higher threshold. For 2026, the phase-out begins at $4,090,000 in total purchases. The Section 179 deduction also cannot exceed the business’s taxable income for the year, though unused amounts can be carried forward.
Bonus Depreciation
Bonus depreciation works alongside or instead of Section 179 and has no dollar cap. Under legislation signed in 2025, qualifying property acquired and placed in service after January 19, 2025, is eligible for a permanent 100 percent additional first-year depreciation deduction.5Internal Revenue Service. Treasury, IRS Issue Guidance on the Additional First Year Depreciation Deduction Amended as Part of the One Big Beautiful Bill The 100 percent rate is now permanent with no scheduled expiration. It applies to new and used tangible property with a recovery period of 20 years or less, plus certain other qualifying property.
A business buying $500,000 of eligible equipment can potentially deduct the whole amount in year one. Unlike Section 179, bonus depreciation can create or increase a net operating loss because it is not limited to taxable income.
Research and Software Development
For tax years beginning after December 31, 2024, domestic research and experimental expenditures, including software development costs, can once again be fully deducted in the year incurred rather than capitalized and amortized over five years. Foreign research expenditures still have to be capitalized and amortized over 15 years.
What Happens When You Sell
When you sell a capitalized asset, you recognize a gain or loss. Start with your adjusted basis: original cost plus capitalized improvements, minus all depreciation or amortization claimed. Sale price minus adjusted basis is your gain or loss.
Capital Gains Rates
Holding period drives the rate. Sell in a year or less and the gain is short-term, taxed at ordinary income rates. Hold longer than a year and the gain is long-term, taxed at preferential federal rates of 0, 15, or 20 percent depending on taxable income.6Internal Revenue Service. Topic No. 409, Capital Gains and Losses Higher-income taxpayers also owe a 3.8 percent net investment income tax on capital gains once modified adjusted gross income passes $200,000 for single filers or $250,000 for joint filers, pushing the top effective long-term rate to 23.8 percent.7Internal Revenue Service. Net Investment Income Tax
Depreciation Recapture
Selling a depreciable business asset at a gain does not deliver capital gains treatment on the whole profit. Under Section 1245, any gain on personal property such as equipment, vehicles, and machinery is treated as ordinary income to the extent of the depreciation previously claimed.8Office of the Law Revision Counsel. 26 USC 1245 – Gain from Dispositions of Certain Depreciable Property Only gain above the recaptured amount qualifies for long-term capital gains rates, which effectively means the favorable rate only applies when the sale price exceeds the original cost.
Say you bought equipment for $100,000, claimed $60,000 of depreciation (adjusted basis $40,000), and sold it for $85,000. The $45,000 total gain is entirely ordinary income, because it all sits within the $60,000 of prior depreciation.
Real property follows a different rule. Depreciation recapture on buildings is taxed at a maximum rate of 25 percent on the unrecaptured Section 1250 gain rather than at full ordinary rates, which makes real estate somewhat more favorable than equipment when selling at a gain. Gains from selling business property, including recapture amounts, get reported on Form 4797.9Internal Revenue Service. Instructions for Form 4797
Deferring Gain on Real Property
If you sell real property used in your business and reinvest in similar real property, you may be able to defer the gain entirely through a Section 1031 like-kind exchange. No gain or loss is recognized when real property held for business or investment is exchanged solely for like-kind real property.10Office of the Law Revision Counsel. 26 USC 1031 – Exchange of Real Property Held for Productive Use or Investment
Since 2018, the tool is limited to real property. Equipment, vehicles, artwork, patents, and other personal property no longer qualify.11Internal Revenue Service. Like-Kind Exchanges – Real Estate Tax Tips The exchange also has to follow strict timing rules, including identifying replacement property within 45 days and completing the exchange within 180 days. The gain is deferred, not eliminated: the replacement property takes a lower basis that produces a larger taxable gain when eventually sold.
Records You Need to Keep
Capital assets require longer record retention than most business documents. The IRS wants you to keep records related to property until the period of limitations expires for the tax year in which you dispose of the property. In practice, that means holding onto purchase records, depreciation schedules, and improvement documentation for the entire time you own the asset plus at least three years after selling it.12Internal Revenue Service. How Long Should I Keep Records?
If the property was acquired through a nontaxable exchange, you need records for both the old and new property. Document the depreciation method, recovery period, and convention for each asset clearly enough that you or your accountant can reconstruct the calculations years later. Without those records, you cannot properly compute adjusted basis at sale time, and any gain or loss you report is a guess.