Capital Gains, Short and Long
A realised gain is taxed at a rate that depends on how long the position was held. The boundary is one year, and it is frequently the largest single cost in a short-horizon method.
MadStockAlerts Research · Updated August 29, 2026
What to take away
- A gain is realised when a position is closed, not when it appears on a screen.
- Holding a year or less produces a short-term gain, taxed at ordinary income rates.
- Holding longer than a year produces a long-term gain, taxed at preferential rates.
- Losses offset gains, and a limited amount of net loss offsets ordinary income.
- None of this applies inside a tax-advantaged account.
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One Day Changes the Rate
Holding period decides which rate applies, and the boundary is a single day past a year.
This lesson is part of a Stock Alerts + Tools plan.
Realisation is the trigger
An unrealised gain is not a taxable event. A position that has doubled and is still held produces nothing to report; the same position closed produces a gain in the year it was closed. That single fact is what connects tax to holding period rather than to performance.
capital gain = proceeds - cost basis
- proceeds are the sale amount net of commissions
- cost basis is what was paid, adjusted for corporate actions and certain disallowed losses
This describes how the rules are structured and is not tax advice. Tax rules change, they interact, and the treatment of any particular situation depends on circumstances that only a qualified professional can assess.
The two holding periods
| Holding period | Character | Rate structure |
|---|---|---|
| One year or less | Short-term | Taxed as ordinary income, at the marginal rate |
| More than one year | Long-term | Preferential rates, in brackets of their own |
The holding period runs from the day after acquisition to the day of disposal. One year and one day qualifies as long-term; exactly one year does not, and the boundary is precise rather than approximate.
The difference between the two rate structures is large enough that it frequently exceeds every other cost of trading combined. That is an arithmetic observation about a short-horizon method rather than an argument for any particular horizon.
How losses are used
- 1Net within each characterShort-term gains against short-term losses; long-term against long-term.
- 2Then net acrossIf one character produces a net loss and the other a net gain, they offset each other.
- 3Deduct a limited net loss against ordinary incomeA capped amount per year, with the cap set in the code.
- 4Carry the rest forwardAn unused capital loss carries forward indefinitely and retains its character.
The carry-forward is the reason a bad year is not a wasted one in tax terms. Unused losses remain available against future gains, and they do not expire.
What sits outside this
- Positions held in a retirement account, where no gain is realised for tax purposes on a sale within the account.
- Some instruments with their own regimes, including certain futures and options contracts subject to a mixed treatment.
- Collectibles and certain other asset classes, which carry their own rate.
- Positions affected by the wash sale rules, where a loss is disallowed and the basis of the replacement adjusted.
This describes how the rules are structured and is not tax advice. Tax rules change, they interact, and the treatment of any particular situation depends on circumstances that only a qualified professional can assess.
The other rates that apply to gains
The headline distinction is between short-term and long-term, and several other provisions sit alongside it and are frequently forgotten until they appear on a return.
| Provision | What it does |
|---|---|
| The long-term rate brackets | Long-term gains have their own bracket structure, including a zero-rate band at lower incomes |
| The net investment income tax | An additional tax on investment income above stated income thresholds |
| Collectibles rate | A higher maximum rate on certain assets, including some metals held directly |
| State tax | Most states tax gains as ordinary income, with no long-term preference |
| Depreciation recapture | Applies to certain assets, taxing part of the gain at ordinary rates |
The first row produces a result that surprises people: there are incomes at which long-term capital gains are taxed at nothing, and the same gain realised as short-term would be taxed at the marginal rate.
The second row is the one most often missed entirely because it is calculated separately from the main rate schedule. This describes how the rules are structured and is not tax advice. Tax rules change, they interact, and the treatment of any particular situation depends on circumstances that only a qualified professional can assess.