A capital asset is almost any property you own for personal use or investment — your house, your car, your furniture, your stocks, your crypto, a piece of jewelry, a rare coin. Federal tax law starts from the assumption that everything you own is a capital asset and then carves out a short list of exceptions. When you sell one at a profit, the IRS taxes the gain under its own set of rules, with rates that run from 0% to 20% depending on how long you held the asset and how much you earned that year. Losses follow separate rules, including a $3,000 annual cap on how much you can deduct against ordinary income.
How Federal Tax Law Defines a Capital Asset
Section 1221 of the Internal Revenue Code takes a broad-then-narrow approach. It calls virtually all property a capital asset, then lists specific exceptions. If you own it and it doesn’t fall into one of those exceptions, it’s a capital asset, whether or not it has anything to do with a business.1Office of the Law Revision Counsel. 26 USC 1221 Capital Asset Defined That sweeping definition captures everything from the couch in your living room to cryptocurrency in a digital wallet.
What actually matters for your tax bill is which type of capital asset you’re dealing with. Personal-use property, investment property, and business-related property each play by different rules.
What Isn’t a Capital Asset
Before going further, it helps to know what’s excluded, because gains on these items are taxed as ordinary income at your regular rate rather than at preferential capital gains rates.
- Business inventory. Goods a store holds for sale to customers are ordinary income property.1Office of the Law Revision Counsel. 26 USC 1221 Capital Asset Defined
- Accounts and notes receivable from providing services or selling inventory in the regular course of business.
- Creative works held by their creator. If you wrote a book, painted a canvas, or composed a song, selling your own creation generates ordinary income. A collector who later buys that same painting, however, holds it as a capital asset.2eCFR. 26 CFR 1.1221-1 Meaning of Terms
- Depreciable business property and business real estate. These fall under Section 1231, which has a hybrid setup: if net Section 1231 gains exceed losses for the year, the gains get long-term capital gains treatment; if losses exceed gains, they’re deducted as ordinary losses.3Office of the Law Revision Counsel. 26 USC 1231 Property Used in the Trade or Business and Involuntary Conversions
Personal-Use Capital Assets
Personal-use assets are things you own for daily life or enjoyment: your home, car, furniture, clothing, electronics. They count as capital assets, but the tax rules are stacked against you. Sell a personal item at a loss and you cannot deduct it. Pay $25,000 for a car, sell it for $15,000, and you simply absorb the $10,000 difference.4Internal Revenue Service. Topic No. 409, Capital Gains and Losses Sell a personal item at a profit, though, and the gain is taxable. That vintage guitar you bought for $500 and sold for $3,000 generates a reportable capital gain.
The biggest personal-use asset for most people is a home. Under Section 121, you can exclude up to $250,000 of gain on the sale of a primary residence if you’re single, or $500,000 if married filing jointly, as long as you owned and lived in the home for at least two of the five years before the sale.5Office of the Law Revision Counsel. 26 USC 121 Exclusion of Gain From Sale of Principal Residence One trap: if you claimed a home office deduction using the regular method, depreciation you took reduces your home’s basis and can create a taxable gain even within the exclusion.6Internal Revenue Service. Depreciation and Recapture 3 The simplified method treats depreciation as zero and leaves your basis intact.
To calculate whether you owe tax on any personal-use sale, you need the asset’s cost basis, generally what you paid for it, including sales tax and improvements.7Internal Revenue Service. Publication 551 (12/2025), Basis of Assets Keep receipts for anything valuable. Failing to report gains can trigger an accuracy-related penalty of 20% of the underpaid tax, rising to 75% in cases of fraud.8Internal Revenue Service. Accuracy-Related Penalty
Personal casualty losses, like a car destroyed in a flood, are deductible only if the loss resulted from a federally declared disaster. Even then, you reduce each loss by $100 and subtract 10% of your adjusted gross income from the total.9Internal Revenue Service. Publication 547 (2025), Casualties, Disasters, and Thefts
Investment Capital Assets
Investment assets are property you hold primarily to make money through appreciation or income: stocks, bonds, mutual fund shares, rental real estate, cryptocurrency. Gains and losses go on Form 8949, listed transaction by transaction with purchase date, sale date, cost basis, and proceeds.10Internal Revenue Service. Instructions for Form 8949 (2025)
Digital assets — Bitcoin, Ethereum, stablecoins, NFTs — are treated as property. Every sale, exchange, or disposal is a reportable event, including swapping one cryptocurrency for another.11Internal Revenue Service. Digital Assets Frequent traders can end up with dozens of taxable transactions in a single year.
Collectibles get their own, harsher rate. Gold bullion, rare coins, stamps, fine art, and antiques held as investments are taxed at a maximum long-term capital gains rate of 28% rather than the standard 20% ceiling.4Internal Revenue Service. Topic No. 409, Capital Gains and Losses
How Long You Hold the Asset Sets the Rate
The single biggest factor in what you pay is how long you owned the asset. The dividing line is one year, counted from the day after you acquired it through the day you sold it.4Internal Revenue Service. Topic No. 409, Capital Gains and Losses
Short-Term Gains
Assets held one year or less produce short-term capital gains, taxed at the same rates as your ordinary income. For 2026, that runs from 10% to 37% depending on your bracket.12Internal Revenue Service. Tax Inflation Adjustments for Tax Year 2026 A quick stock flip by someone in the top bracket costs nearly twice as much in tax as the same gain would have cost with a few more months of holding.
Long-Term Gains
Assets held more than one year qualify for preferential long-term rates of 0%, 15%, or 20%. For 2026, the thresholds break down by filing status:13Internal Revenue Service. Revenue Procedure 2025-32
- 0% rate: taxable income up to $49,450 single, $98,900 married filing jointly, $66,200 head of household.
- 15% rate: taxable income above the 0% ceiling up to $545,500 single, $613,700 married filing jointly, $579,600 head of household.
- 20% rate: taxable income above the 15% ceiling.
Timing a sale to fall on the right side of the one-year line can cut your tax bill sharply. Buy stock on March 1, 2026, and you need to hold it until at least March 2, 2027, for the gain to qualify as long-term.
Netting Gains and Losses
Capital gains and losses don’t exist in isolation. At year-end you net them in sequence: short-term gains against short-term losses first, long-term gains against long-term losses next. If one category has a net gain and the other has a net loss, they offset across categories.14Office of the Law Revision Counsel. Title 26 Subchapter P Capital Gains and Losses
If total losses exceed total gains, you can deduct up to $3,000 of the excess against ordinary income ($1,500 if married filing separately).15Office of the Law Revision Counsel. 26 USC 1211 Limitation on Capital Losses Anything left over carries forward indefinitely, keeping its short-term or long-term character.16Office of the Law Revision Counsel. 26 USC 1212 Capital Loss Carrybacks and Carryovers Realize a $20,000 capital loss in a year with no capital gains and you deduct $3,000 that year, carrying the remaining $17,000 forward.
The Wash Sale Rule
Investors often sell losing positions on purpose to generate deductible losses. But if you sell a stock or security at a loss and buy the same or a substantially identical one within 30 days before or after the sale, the IRS disallows the loss. The 61-day window exists to stop people from claiming a tax loss while keeping essentially the same investment position.17Office of the Law Revision Counsel. 26 USC 1091 Loss From Wash Sales of Stock or Securities The disallowed loss isn’t lost permanently; it gets added to the basis of the replacement shares.18Internal Revenue Service. Case Study 1 Wash Sales The statute covers stock and securities. The IRS has not issued final regulations applying it to cryptocurrency.
Basis for Inherited and Gifted Assets
How you acquired an asset determines your starting basis, and the rules for inheritances and gifts differ sharply.
When you inherit a capital asset, its basis resets to fair market value on the date the previous owner died. This stepped-up basis can wipe out decades of unrealized appreciation.19Office of the Law Revision Counsel. 26 USC 1014 Basis of Property Acquired From a Decedent If your parent bought stock for $10,000 and it was worth $100,000 at death, your basis is $100,000. Sell for $102,000 and you owe tax on just $2,000. Inherited property also qualifies automatically for long-term treatment no matter how briefly you hold it.20Office of the Law Revision Counsel. 26 USC 1223 Holding Period of Property
Gifts work differently. You generally take over the donor’s original basis. If your uncle bought stock for $5,000 and gives it to you when it’s worth $20,000, your basis is still $5,000. Sell for $22,000 and you owe tax on $17,000 of gain.21Office of the Law Revision Counsel. 26 USC 1015 Basis of Property Acquired by Gifts and Transfers in Trust If the fair market value on the gift date was lower than the donor’s basis, your basis for calculating a loss is that lower fair market value, which stops donors from passing built-in losses to someone else. You also tack the donor’s holding period onto your own.20Office of the Law Revision Counsel. 26 USC 1223 Holding Period of Property
Extra Taxes That Can Ride on Top
The 3.8% Net Investment Income Tax
High earners face an additional 3.8% tax on net investment income, including capital gains. It applies to the lesser of your net investment income or the amount by which your modified adjusted gross income exceeds the threshold: $200,000 single, $250,000 married filing jointly, or $125,000 married filing separately.22Internal Revenue Service. Topic No. 559, Net Investment Income Tax It’s easy to forget in planning because it stacks on top of whatever capital gains rate you already owe. Someone in the 20% bracket with income above the threshold effectively pays 23.8% on long-term gains.
Depreciation Recapture on Real Estate
When you sell depreciable real estate at a gain, the portion of that gain attributable to depreciation you previously deducted is taxed at a maximum rate of 25%, not the preferential long-term rate. This is unrecaptured Section 1250 gain.4Internal Revenue Service. Topic No. 409, Capital Gains and Losses Any gain above the depreciation amount gets the standard long-term rate.
State Income Tax
Federal rules are only part of the picture. Most states tax capital gains as ordinary income, with top rates that range from 0% in states with no income tax to above 13% in the highest-tax states. A handful offer reduced rates or exclusions for certain long-term holdings, but the treatment varies widely. Add your state rate to the federal rate and any NIIT to see the true cost of a sale.