Capital Asset Defined: IRS Exclusions, Section 1231, and Digital Assets

A capital asset, as defined by the tax code, is any property you own unless it falls into one of eight specific exclusions listed in Internal Revenue Code Section 1221.¹ The definition works by exception: everything is a capital asset by default, and you look for a reason it isn’t. That matters because gains on capital assets can be taxed at preferential rates as low as 0%, while gains on excluded property are taxed as ordinary income at rates that reach 37%.

The Default Rule: Everything You Own

Section 1221 casts the widest possible net. A capital asset is any property held by a taxpayer, whether or not it is connected to a trade or business.¹ Stocks, bonds, mutual fund shares, investment real estate, cryptocurrency, your car, your furniture, a painting on your living room wall: all capital assets under this default rule.

Because the definition is so broad, the actual work of classification comes from the exclusion list. If your property doesn’t appear on that list, it’s a capital asset, and any gain or loss on its sale follows capital gain rules.

The Eight Exclusions from Capital Asset Status

Section 1221 pulls eight categories of property out of the capital asset definition. The first several come up often for individual taxpayers and small business owners. The others primarily affect dealers and larger businesses.

Inventory and Property Held for Sale to Customers

Property you hold primarily for sale to customers in your ordinary course of business is not a capital asset.¹ This is the most common exclusion and the one that generates the most disputes. Profit from selling inventory is ordinary business income.

Whether something qualifies as inventory depends on the taxpayer’s intent and the pattern of sales, not the type of property. A real estate developer who buys houses, renovates them, and flips them within months is holding inventory. An individual who buys one house and lives in it for a decade is holding a capital asset. The identical piece of real estate receives opposite tax treatment depending on who holds it and why. Courts examining these disputes look at the frequency of sales, how long the property was held, and whether the taxpayer advertised or listed the property for sale.

Depreciable and Real Business Property

Business equipment, machinery, and real estate used in your trade or business are technically excluded from the capital asset definition.¹ These assets get their own hybrid treatment under Section 1231, covered below.

Self-Created Intellectual Property

Patents, inventions, copyrights, musical compositions, literary works, and similar creative property are not capital assets when held by the person who created them.¹ A songwriter who sells the rights to a song they wrote recognizes ordinary income, not a capital gain. The same exclusion applies to anyone who received the property as a gift from the creator, or who acquired it in a transaction that carries over the creator’s tax basis. If an unrelated investor later buys that copyright on the open market, however, it becomes a capital asset in the investor’s hands.

Patents get one narrow escape hatch. Section 1235 allows the original inventor, or an unrelated person who acquired an interest before the invention was reduced to practice, to treat a qualifying transfer as a long-term capital gain even though the patent would otherwise be excluded.² The inventor must transfer all substantial rights, and the transfer cannot be to a related party. Non-patented inventions, secret formulas, and proprietary processes do not qualify.

Business Receivables

Accounts receivable and notes receivable that arise from selling inventory or providing services in the ordinary course of business are not capital assets.¹ The amounts underlying those receivables represent income that would have been ordinary if collected directly. Without this exclusion, a business could convert ordinary income into capital gains simply by selling the right to receive future payments.

Government Publications

U.S. government publications received for free or below the normal public sales price are not capital assets in the hands of the recipient.¹ This prevents someone who obtained documents at no cost from later claiming a capital gain on their sale.

Commodities Derivatives, Hedging Transactions, and Business Supplies

Three additional exclusions round out the list. Commodities derivative instruments held by a derivatives dealer are excluded unless the instrument has no connection to the dealer’s business and is identified as such in records before the end of the acquisition day. Hedging transactions that are properly identified as hedges are excluded, so that gains or losses from risk-management positions receive ordinary treatment matching the underlying business income they protect. And supplies regularly consumed in a trade or business are excluded.¹ Most individual taxpayers never encounter these, but they can significantly affect businesses that trade in commodities or carry large supplies inventories.

Section 1231: The Hybrid Category for Business Property

Depreciable equipment and real estate used in a trade or business occupy a space between capital assets and ordinary income property. Section 1231 gives these assets what amounts to the best of both worlds: if you sell them at a net gain for the year, that gain is treated as a long-term capital gain; if you sell at a net loss, that loss is fully deductible as an ordinary loss.³ Ordinary losses are more valuable than capital losses because they offset any type of income without the $3,000 annual cap.

The catch is depreciation recapture. Before you get favorable Section 1231 treatment, the IRS claws back some or all of the depreciation deductions you previously took. For tangible personal property like equipment and vehicles, Section 1245 recharacterizes gain as ordinary income to the extent of all depreciation previously claimed.⁴ In practice, this means the entire gain on equipment sales is often ordinary income because the depreciation deductions typically exceed the actual gain.

For depreciable real property like a commercial building, Section 1250 recharacterizes gain to the extent of any accelerated depreciation taken beyond straight-line amounts.⁵ Real property placed in service after 1986 must use straight-line depreciation, so Section 1250 recapture rarely produces ordinary income for most taxpayers. The straight-line depreciation itself, however, creates “unrecaptured Section 1250 gain,” which is taxed at a maximum rate of 25% rather than the usual long-term capital gains rates.⁶ Only the remaining gain after recapture qualifies for the standard long-term rates. Anyone selling rental property or a commercial building has to plan for this layered calculation.

Personal Property Is a Capital Asset (But Personal Losses Aren’t Deductible)

Your home, car, furniture, jewelry, and other belongings held for personal purposes are capital assets under the default rule. Any gain you realize from selling personal property is subject to capital gains tax. Profit from selling a stamp collection, a vintage guitar, or a vacation home all falls into this category.

Losses on personal use property, however, are not deductible. You cannot claim a capital loss from selling your car for less than you paid or from selling your home at a loss. The tax code draws a line between losses tied to investment or business activity and losses arising from personal consumption or market fluctuations in items you used for daily life.

Converting personal property to investment use changes the loss rules going forward. But watch a wrinkle: the depreciable basis for converted property is the lower of your adjusted basis or the fair market value on the date of conversion. If your home was already worth less than you paid when you started renting it, you cannot recover that pre-conversion decline through depreciation or a future loss deduction.

Digital Assets Under the Definition

The IRS treats cryptocurrency, stablecoins, NFTs, and other digital assets as property, not currency.⁷ That places them squarely under the default Section 1221 definition. When held for personal or investment purposes, they are capital assets. Selling Bitcoin at a profit triggers a capital gain; selling at a loss produces a capital loss.

The same holding period rules apply. Digital assets held for more than one year before disposal qualify for long-term capital gains rates, while those held for one year or less are taxed at ordinary income rates.⁷ Every transaction must be reported, including exchanges of one cryptocurrency for another, which are treated as a sale of the first asset and a purchase of the second. Taxpayers need to track the acquisition date, number of units, cost basis, and fair market value at the time of each transaction.

One difference from traditional investments: the wash sale rule applies only to “stock or securities,” and cryptocurrency is classified as property rather than a security. Crypto investors can currently sell at a loss and immediately repurchase the same asset without triggering the loss disallowance.⁸ This gap has been a target for legislative change, so it may not persist indefinitely.

How Gains on Capital Assets Are Taxed

Once you confirm an asset is capital property, the tax rate on any gain depends almost entirely on how long you held it.

Short-Term Gains

Assets held for one year or less produce short-term capital gains, which are taxed at ordinary income rates.⁶ For 2026, those rates run from 10% to 37% depending on your total taxable income and filing status.⁹ There is no tax advantage to a short-term capital gain over a dollar of wages or business income.

Long-Term Gains

Assets held for more than one year produce long-term capital gains, taxed at 0%, 15%, or 20% depending on income.⁶ The spread between the top ordinary rate of 37% and the top long-term rate of 20% makes the one-year-and-a-day holding period the single most important timing decision in investment tax planning.

Special Rates: Collectibles and Depreciated Real Property

Not all long-term capital gains qualify for the 0/15/20% rates. Gains from selling collectibles such as coins, art, antiques, stamps, and precious metals are capped at a 28% maximum rate.⁶ Unrecaptured Section 1250 gain on depreciated real property faces a maximum 25% rate. Both are lower than the top ordinary rate of 37% but higher than the standard long-term rate most investors pay.

The Net Investment Income Tax

High-income taxpayers face an additional 3.8% Net Investment Income Tax on capital gains and other investment income. The tax applies to the lesser of your net investment income or the amount by which your modified adjusted gross income exceeds $200,000 for single filers, $250,000 for married filing jointly, or $125,000 for married filing separately.¹⁰ These thresholds are not adjusted for inflation. When the NIIT applies, the effective top rate on long-term capital gains rises to 23.8%.

How Losses on Capital Assets Work

Netting and the Annual Deduction Limit

Capital losses first offset capital gains of the same character. Short-term losses reduce short-term gains, and long-term losses reduce long-term gains. Any remaining net loss crosses over to offset gains of the other type. If you still have a net capital loss after all netting, you can deduct up to $3,000 per year against ordinary income, or $1,500 if married filing separately.¹¹ The $3,000 cap has not been adjusted for inflation since it was set in 1978.

Any unused net capital loss carries forward to future tax years indefinitely. You report the carryover on each year’s return until it is fully absorbed. The loss retains its character as short-term or long-term in future years, which matters because a long-term loss carried forward will first offset long-term gains, potentially displacing a 0% or 15% rate benefit, before reducing ordinary income.

The Wash Sale Rule

Sell a stock or other security at a loss and repurchase the same or a substantially identical security within 30 days before or after the sale, and the loss is disallowed under the wash sale rule.⁸ The full prohibited window spans 61 days: 30 days before the sale, the sale date itself, and 30 days after. The disallowed loss is not permanently gone. It gets added to the cost basis of the replacement security, deferring the tax benefit until you eventually sell without triggering another wash sale. The rule applies to stocks, bonds, ETFs, and mutual funds.

Basis at Acquisition: Inherited vs. Gifted Assets

Because a capital gain is measured against your basis in the asset, how you acquired the property is as important as how you dispose of it. Inheritance and gifts produce very different bases.

Inherited Property: Stepped-Up Basis

When you inherit property, your basis is generally the fair market value of the asset on the date the original owner died.¹² This is commonly called a step-up in basis, though the adjustment can go in either direction if the asset lost value before death. Decades of appreciation in the original owner’s hands are wiped clean for tax purposes. If your parent bought stock for $10,000 thirty years ago and it was worth $200,000 at death, your basis is $200,000. You can sell immediately with little or no taxable gain.

The executor may elect an alternate valuation date six months after death if doing so would reduce the estate’s value and tax liability. Inherited property is automatically treated as held long-term regardless of how soon the beneficiary sells it.¹² Certain assets like retirement accounts and annuities do not receive a step-up, because distributions from those accounts are already taxed as ordinary income.

Gifted Property: Carryover Basis

Property received as a gift carries over the donor’s adjusted basis.¹³ If your parent paid $10,000 for stock and gives it to you while alive, your basis is $10,000. When you sell, you pay tax on all appreciation that occurred during both your parent’s ownership and yours.

There is a special rule when the donor’s basis exceeds the fair market value of the gift at the time of the transfer. For purposes of calculating a loss on a later sale, you must use the lower fair market value on the gift date as your basis, not the donor’s higher cost.¹³ This creates a no-man’s land where selling at a price between the donor’s basis and the fair market value at the time of the gift produces neither a gain nor a deductible loss. The contrast between inherited and gifted basis is one of the most consequential distinctions in estate and gift planning.

1
Office of the Law Revision Counsel. 26 USC 1221 – Capital Asset Defined
2
Office of the Law Revision Counsel. 26 USC 1235 – Sale or Exchange of Patents
3
Office of the Law Revision Counsel. 26 USC 1231 – Property Used in the Trade or Business and Involuntary Conversions
4
Office of the Law Revision Counsel. 26 USC 1245 – Gain From Dispositions of Certain Depreciable Property
5
Office of the Law Revision Counsel. 26 USC 1250 – Gain From Dispositions of Certain Depreciable Realty
6
Internal Revenue Service. Topic No. 409, Capital Gains and Losses
7
Internal Revenue Service. Digital Assets
8
eCFR. 26 CFR 1.1091-1 – Losses From Wash Sales of Stock or Securities
9
Tax Foundation. 2026 Tax Brackets and Federal Income Tax Rates
10
Internal Revenue Service. Topic No. 559, Net Investment Income Tax
11
Office of the Law Revision Counsel. 26 USC 1211 – Limitation on Capital Losses
12
Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent
13
Office of the Law Revision Counsel. 26 USC 1015 – Basis of Property Acquired by Gifts and Transfers in Trust