Short-Term Capital Gains: Tax Rates, Rules & How They Differ from Long-Term
The One-Year Cutoff
The rule is binary. Hold an asset for one year or less and sell at a profit — it’s a short-term capital gain. Hold for more than one year — it’s a long-term capital gain with significantly lower rates. There’s no partial credit for holding 11 months versus 2 days. Both get the same unfavorable treatment.
The holding period starts the day after you acquire the asset. If you bought shares on June 1, 2025, selling on or before June 1, 2026, produces a short-term gain. Selling on June 2, 2026, or later qualifies as long-term.
2025 Short-Term Capital Gains Rates
Since short-term gains are taxed as ordinary income, they follow the standard federal income tax brackets:
| Tax Rate | Single Filer | Married Filing Jointly |
|---|---|---|
| 10% | Up to $11,925 | Up to $23,850 |
| 12% | $11,926 – $48,475 | $23,851 – $96,950 |
| 22% | $48,476 – $103,350 | $96,951 – $206,700 |
| 24% | $103,351 – $197,300 | $206,701 – $394,600 |
| 32% | $197,301 – $250,525 | $394,601 – $501,050 |
| 35% | $250,526 – $626,350 | $501,051 – $751,600 |
| 37% | Over $626,350 | Over $751,600 |
Short-term gains add directly to your ordinary income, which can push the top of your income into a higher bracket. Add the 3.8% NIIT for high earners and the effective maximum rate hits 40.8%.
The Real Cost — Short-Term vs. Long-Term Side by Side
Here’s why the holding period matters so much. Consider a $30,000 gain for a single filer earning $90,000 in salary:
| Metric | Short-Term | Long-Term |
|---|---|---|
| Tax rate applied | 22–24% (ordinary brackets) | 15% |
| Approximate federal tax on $30K gain | ~$6,780 | ~$4,500 |
| Tax savings from long-term treatment | — | ~$2,280 |
That’s $2,280 saved just by holding 366 days instead of 365. At higher income levels, the gap widens dramatically — a top earner would face 37% short-term versus 20% long-term on the same gain.
When Short-Term Gains Are Unavoidable
Sometimes you can’t — or shouldn’t — wait for long-term treatment. Common scenarios include rebalancing a portfolio that’s drifted significantly from your target asset allocation, selling a position that’s deteriorating before losses get worse, getting assigned on an options position, or receiving short-term capital gain distributions from mutual funds (which you can’t control).
In these cases, the right response is to offset the gain rather than avoid it.
How Short-Term Gains and Losses Net Out
The IRS uses a specific netting process at tax time:
| Step | What Happens |
|---|---|
| 1 | Short-term gains and short-term losses net against each other |
| 2 | Long-term gains and long-term losses net against each other |
| 3 | If one category has a net gain and the other a net loss, they offset across categories |
| 4 | Net capital losses can offset up to $3,000 of ordinary income per year |
| 5 | Excess losses carry forward indefinitely to future years |
Strategies to Minimize Short-Term Capital Gains Tax
| Strategy | How It Helps |
|---|---|
| Wait for long-term treatment | If close to the one-year mark, holding a few more days or weeks can cut your rate significantly |
| Tax-loss harvesting | Sell losing positions to generate losses that offset short-term gains (watch the wash sale rule) |
| Trade inside tax-advantaged accounts | Short-term trades in a 401(k), Roth IRA, or HSA generate zero capital gains tax |
| Use tax-efficient funds | ETFs and index funds distribute fewer short-term gains than actively managed mutual funds |
| Specific lot identification | When selling partial positions, choose highest-cost-basis shares to minimize the gain |
| Time sales in low-income years | If you have a year with reduced income, your marginal rate is lower — making short-term gains less painful |
Short-Term Gains in Special Situations
Options Trading
Most options positions — buying calls, buying puts, and writing options — produce short-term capital gains or losses because the contracts typically expire within a year. Exercised options adjust the holding period and basis of the underlying shares. Options income is one of the biggest sources of short-term gains for active investors.
Crypto
Cryptocurrency is treated as property by the IRS. Every sale, swap, or exchange of crypto held one year or less triggers a short-term capital gain. Given how frequently crypto is traded, the tax bill can surprise people who weren’t tracking cost basis carefully.
Mutual Fund Distributions
Actively managed mutual funds can distribute short-term capital gains to shareholders at year-end — even if you didn’t sell a single share. These distributions are taxable to you at ordinary income rates. This is a hidden tax cost of actively managed funds versus ETFs, which are generally more tax-efficient.
Key Takeaways
- Short-term capital gains apply to assets held one year or less and are taxed at ordinary income rates (10–37%, plus 3.8% NIIT for high earners).
- The maximum effective rate of 40.8% is nearly double the 23.8% maximum for long-term gains.
- Short-term losses are especially valuable — they offset short-term gains that would otherwise be taxed at your highest rate.
- Trade frequently? Do it inside tax-advantaged accounts to avoid generating short-term gains in taxable accounts.
- Whenever possible, hold past the one-year mark to qualify for long-term rates.
Frequently Asked Questions
Do short-term capital gains get added to my regular income?
Yes. Short-term capital gains are taxed at the same rates as wages, salary, and other ordinary income. They stack on top of your other income and can push you into a higher marginal bracket.
Can short-term losses offset long-term gains?
Yes, but only after they’ve first offset short-term gains. If you have a net short-term loss remaining after netting, it offsets net long-term gains. Since short-term losses shelter income that would be taxed at higher rates, they’re more tax-efficient to harvest than long-term losses.
What if I accidentally sell a stock one day too early?
You’ll owe short-term capital gains tax on the profit instead of the lower long-term rate. There’s no grace period or exception — the one-year holding period is a hard cutoff. Check your purchase date before selling if you’re close to the line.
Are there any assets exempt from short-term capital gains tax?
Assets sold inside tax-advantaged accounts (401(k), Roth IRA, Traditional IRA, HSA) never trigger capital gains tax regardless of holding period. In taxable accounts, municipal bond interest is tax-exempt but selling the bond itself at a gain is still taxable.