For tax purposes, a long-term investment is any capital asset you’ve held for more than one year before selling it. That single threshold, set by Internal Revenue Code Section 1222, decides whether your profit is taxed at the preferential long-term capital gains rates of 0%, 15%, or 20%, or at ordinary income rates that reach as high as 37%.1Office of the Law Revision Counsel. 26 USC 1222 – Other Terms Relating to Capital Gains and Losses Anything held for one year or less is short-term and taxed as ordinary income.
How the One-Year Clock Runs
The holding period starts the day after you buy the asset and runs through the day you sell it. Buy shares on March 1, 2026, and the earliest you can sell them for long-term treatment is March 2, 2027. Missing the deadline by a single day means the entire gain is taxed at ordinary income rates. There is no partial credit for eleven months of holding, and the IRS has no discretion to waive the rule.
Brokerages independently report your cost basis and acquisition date to the IRS, and you report gains on Schedule D of Form 1040.2Internal Revenue Service. About Schedule D (Form 1040), Capital Gains and Losses Getting the holding period wrong is one of the fastest ways to trigger an IRS notice, so keep clean records of your purchase dates.
What Qualifying as Long-Term Actually Saves You
For the 2026 tax year, a single filer pays the following rates on long-term capital gains:
- 0% on taxable income up to $49,450
- 15% on taxable income from $49,451 to $545,500
- 20% on taxable income above $545,500
For married couples filing jointly, the 0% rate applies up to $98,900 and the 15% bracket runs to $613,700.3Internal Revenue Service. 2026 Adjusted Items Ordinary income rates for 2026 start at 10% on the first $12,400 of taxable income for single filers and climb to 37% above $640,600.4Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
The gap is substantial. A single filer with $80,000 in taxable income sits in the 22% ordinary bracket but pays only 15% on long-term gains. Sell the same asset a week too early and that 22% rate applies to the entire profit.
Assets That Get Different Long-Term Rates
Not every asset held more than a year qualifies for the standard 0/15/20% treatment.
Collectibles like coins, art, and antiques are taxed at a maximum rate of 28%, even when held for decades. When you sell rental property or other depreciable real estate at a profit, the portion of your gain attributable to depreciation you previously claimed is taxed at up to 25%.5Internal Revenue Service. Topic No. 409, Capital Gains and Losses Only the remaining gain above your depreciation recapture qualifies for the standard long-term rates. Investors who buy rental property and forget about recapture often face a tax bill at closing they never budgeted for.
Qualified Dividends
Dividends can also receive long-term rates, but under a different holding rule. The dividend must come from a U.S. corporation or a qualifying foreign corporation, and you must have held the stock for more than 60 days during the 121-day period surrounding the ex-dividend date. Qualified dividends are then taxed under the same 0/15/20% schedule.6Internal Revenue Service. Qualified Dividends and Capital Gains Rate Differential Adjustments Sell too quickly and the dividends become ordinary income.
The 3.8% Net Investment Income Tax
Higher earners face an additional surtax on top of the standard capital gains rates. The Net Investment Income Tax adds 3.8% to your tax on investment income, including long-term capital gains, dividends, interest, and rental income, when your modified adjusted gross income exceeds $200,000 for single filers or $250,000 for married couples filing jointly.7Office of the Law Revision Counsel. 26 USC 1411 – Imposition of Tax Those thresholds are written into the statute and are not adjusted for inflation, so more taxpayers cross them each year. A single filer with $300,000 in income and $50,000 in long-term capital gains effectively pays 18.8% on those gains: the 15% capital gains rate plus 3.8% NIIT.
Inherited Assets Are Long-Term Automatically
When you inherit an investment, two rules combine to make it one of the most tax-efficient assets in the code.
First, the asset’s tax basis resets to its fair market value on the date of death. If your parent bought stock for $10,000 thirty years ago and it was worth $200,000 when they died, your basis is $200,000, not the original $10,000.8Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent The $190,000 of accumulated gain is never taxed. The executor may instead elect an alternate valuation date six months after death if doing so reduces the estate’s value.9Internal Revenue Service. Gifts and Inheritances
Second, inherited property is treated as long-term under IRC Section 1223(9) regardless of how long the deceased held it or how quickly you sell it after inheriting. You get the 0/15/20% rates from day one.
Mutual Fund Distributions Are Always Long-Term
Holding a mutual fund for the long term does not protect you from annual tax bills. When the fund’s managers sell appreciated securities inside the fund, the resulting capital gains pass through to you as a shareholder. You owe taxes on those distributions even if you never sold a share.10Internal Revenue Service. Mutual Funds (Costs, Distributions, etc.) 4
Capital gain distributions from a mutual fund are always treated as long-term gains, regardless of how long you personally have owned shares in the fund. You’ll find the amount in box 2a of Form 1099-DIV each year. Index funds and tax-managed funds tend to generate far fewer of these distributions than actively managed funds, which is why long-term investors often favor them in taxable accounts.
Losses on Long-Term Investments
When a long-term investment loses money, the tax code limits how much of that loss you can use in a single year. If capital losses exceed capital gains, you can deduct only up to $3,000 of the excess against ordinary income, or $1,500 if married filing separately.5Internal Revenue Service. Topic No. 409, Capital Gains and Losses Any remaining loss carries forward to future tax years indefinitely. Long-term losses first offset long-term gains, and short-term losses first offset short-term gains. Leftover losses then cross over to the other category, and only after all gains are absorbed does the $3,000 deduction against ordinary income apply.
One trap catches many year-end tax-loss harvesters. If you sell an investment at a loss and buy the same or a substantially identical security within 30 days before or after the sale, the wash sale rule under Section 1091 disallows the loss entirely.11Office of the Law Revision Counsel. 26 USC 1091 – Loss From Wash Sales of Stock or Securities The 30-day window runs in both directions, creating a 61-day blackout around the sale date. The disallowed loss isn’t gone forever; it gets added to the cost basis of the replacement shares, but the tax benefit is delayed. Swapping into a similar but not identical fund is the common workaround, though the IRS has never published a clear definition of “substantially identical.”
A Note on Other Definitions
Financial planners typically use “long-term” to mean a holding horizon of five to ten years or more, and corporate accountants use it to describe balance-sheet assets not expected to be converted to cash within twelve months. Neither of those definitions changes your tax outcome. For anything you’re selling on your own return, the only line that matters is the one-year mark in Section 1222.