For most securities in a taxable brokerage account, the IRS cares how long you held the asset before you sold it. Hold one year or less and a gain is usually short-term (taxed like ordinary income). Hold more than one year and a gain is usually long-term (preferential long-term capital gains rates for many filers). Broader gain/loss mechanics: Capital gains basics.
Employer ESPP shares you later sell in a taxable account still use these clocks once plan tax rules are applied: ESPP basics.
This guide is about the calendar test and lot timing, not trader status, collectibles rates, or real-estate §1031 rules.
The one-year-plus line
| Holding period (typical rule) | Gain label | Common federal treatment |
|---|---|---|
| ≤ 1 year | Short-term | Ordinary income tax rates |
| > 1 year | Long-term | 0% / 15% / 20% long-term brackets for many filers (confirm current IRS tables) |
Start counting the day after acquisition and include the day of disposition under common IRS examples - broker lot screens at Vanguard, Fidelity, and Schwab usually show acquired date, term, and unrealized gain. Confirm edge cases (employee stock, inherited lots, gifted shares) with IRS Pub 544 / a tax pro (Filing taxes for beginners).
Holding period is per lot, not per ticker. Buying more shares later creates new lots with new clocks. On individual bonds, adjusted basis after premium amortization or discount accretion still uses these holding-period clocks when you sell. Inside an IRA or 401(k), trades generally do not create annual short/long capital-gains tax the taxable way - the wrapper rules dominate (Taxable brokerage account basics).
Why a few days can matter
Crossing from short-term to long-term can change the federal rate on the same dollar of profit by a large margin for higher-bracket filers. Waiting can also interact with:
- Year-end tax planning and estimated payments (Quarterly estimated taxes)
- Tax-loss harvesting (losses offset gains; wash sale rules can disallow a loss)
- Dividend character (Qualified dividends) - separate from the capital-gains holding period, but also calendar-sensitive
- Net Investment Income Tax for higher MAGI households
Worked example
Priya buys 50 shares of a total-market ETF at Schwab on March 10, 2025. On March 10, 2026 she still holds them: that is generally not yet more than one year. If she sells on March 11, 2026 (or later, depending on exact IRS day-count for her facts), the lot is typically long-term.
Suppose the sale produces a $4,000 gain. If short-term and her ordinary marginal rate is 24%, federal tax on that gain might be about $960 before state tax. If long-term and her long-term rate is 15%, federal tax might be about $600. Same profit; different calendar. Numbers are illustrative only.
If Priya sells only 20 shares, specific-lot vs FIFO settings decide which acquisition dates apply. Check the broker’s cost-basis method before partial sales.
Practical habits
- Open the lot detail screen before a taxable sale; do not guess from the ticker’s first purchase date.
- If you are days from long-term treatment and you do not need the cash, run the tax delta before you click sell.
- Do not let a short-term gain force a fire sale that also wrecks an emergency cash plan - keep spending money in savings, not only in equity lots.
- Remember mutual funds can distribute capital gains even when you did not sell shares (Expense ratios and low-turnover funds matter in taxable accounts).
- Inherited shares often use a stepped-up basis and different holding-period treatment (Stepped-up basis basics). Premium paid on a taxable bond also changes adjusted basis over time: Bond premium amortization basics.
Checklist
- Confirm the account is taxable before you worry about short vs long.
- Read acquired date and term on each lot you plan to sell.
- Estimate short-term vs long-term tax on large gains before trading.
- Align partial sales with specific-ID settings if your broker allows.
- Save 1099-B / Form 8949 detail each year for your records.
Collectibles still need a long-term hold for preferential collectibles treatment - and the rate cap differs from stocks: Capital gains on collectibles.
Writing covered calls can suspend or alter stock holding periods before assignment: Covered call tax basics.
Equity options vs section 1256 contracts change how holding periods and 60/40 splits work: Options trading tax basics.
Dividend qualified-status uses a separate ex-div window test: Qualified dividends holding period basics.
Educational only. Not tax, legal, or investment advice. Holding-period rules, rates, and special asset classes change; confirm with IRS publications and a qualified tax professional for your return.