How Short-Term Capital Gains Tax Rates Work

Short-term capital gains are taxed as ordinary income at your regular tax bracket rate

When you sell an investment you've held for one year or less, the profit counts as short-term capital gains. The IRS taxes this money at the same rate as your wages, salary, or other ordinary income. That means your short-term gains rate depends entirely on your tax bracket — not on a separate capital gains rate.

If you're in the 22% tax bracket, short-term gains are taxed at 22%. If you're in the 37% bracket, they're taxed at 37%. This is different from long-term capital gains, which have their own lower rates (0%, 15%, or 20%, depending on your income). The holding period — whether you owned the asset for more than a year — is what determines which tax applies.

Key Takeaways

• Short-term capital gains use your ordinary income tax bracket, which ranges from 10% to 37% depending on your filing status and total income.
• The one-year holding period is the dividing line: sell within one year and it's short-term; hold longer and it becomes long-term with lower rates.
• Your total income for the year determines your bracket, so a short-term gain can push you into a higher bracket and increase the tax on that gain.
• State income tax applies to short-term gains in most states, on top of the federal rate.

How your tax bracket determines the rate you pay

The federal tax code sets seven ordinary income brackets for 2024: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Which bracket you fall into depends on your filing status (single, married filing jointly, head of household, or married filing separately) and your total taxable income for the year.

When you add a short-term capital gain to your income, it stacks on top of what you've already earned. If you earned $50,000 in salary and have a $10,000 short-term gain, your taxable income is $60,000. That $10,000 gain is taxed at whatever bracket $60,000 puts you in. If $60,000 lands you in the 22% bracket, the entire $10,000 is taxed at 22%.

This "stacking" effect matters. A large short-term gain can push you from one bracket into a higher one, meaning part or all of the gain gets taxed at a higher rate than your ordinary income.

Why holding for more than one year changes the tax rate

The IRS created lower capital gains rates to encourage long-term investing. If you hold an asset for more than one year before selling, the profit qualifies as long-term capital gains and gets taxed at 0%, 15%, or 20% — rates that are usually much lower than your ordinary bracket.

The one-year clock starts the day after you buy. If you buy on January 15, 2024, you can sell on January 15, 2025, and the gain is long-term. If you sell on January 14, 2025, it's short-term. The difference in tax can be substantial: a $10,000 gain taxed at 37% (short-term) costs $3,700, while the same gain at 15% (long-term) costs $1,500.

State income tax on short-term gains

Federal tax is only part of the bill. Most states tax short-term capital gains as ordinary income, adding their own rate on top of the federal rate. Nine states have no income tax at all (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming, and New Hampshire). The remaining states range from about 1% to over 13%, depending on the state and your income level.

If you live in California and have a $10,000 short-term gain while in the 24% federal bracket, you'd owe roughly $2,400 in federal tax plus California's rate (which could be 9.3% to 13.3% depending on your total income), for a combined rate of 33% to 37% or higher.

How to calculate what you owe on a short-term gain

Start with the sale price of the asset minus what you paid for it (including any fees or commissions). That number is your gain. Multiply the gain by your federal tax bracket rate, then add your state rate if your state taxes capital gains.

Example: You buy a stock for $5,000 and sell it nine months later for $7,000. Your gain is $2,000. If you're in the 24% federal bracket and your state has a 5% capital gains tax, you owe $2,000 × 0.24 = $480 federal, plus $2,000 × 0.05 = $100 state, for a total of $580.

Keep records of the purchase price, sale price, and sale date. When you file your tax return, you'll report the transaction on Schedule D (Capital Gains and Losses). Your tax software or preparer will calculate the exact amount based on your full year's income and applicable rates.

Short-term losses can offset short-term gains

If you sell an investment at a loss within one year, that loss is a short-term capital loss. You can use short-term losses to offset short-term gains dollar-for-dollar. If you have a $3,000 short-term gain and a $2,000 short-term loss in the same year, you report a net $1,000 short-term gain.

If your losses exceed your gains, you can deduct up to $3,000 of the net loss against your ordinary income in that year. Any loss beyond $3,000 carries forward to future years, where you can use it to offset future gains or ordinary income (again, up to $3,000 per year).

Frequently Asked Questions

Is short-term capital gains tax the same as income tax?

Yes, for federal purposes. Short-term capital gains are taxed using the same brackets and rates as wages and salary. The difference is that long-term capital gains have their own separate, lower rates. State treatment varies — some states tax short-term gains as ordinary income, while others have separate capital gains taxes.

Can I avoid short-term capital gains tax by holding the investment longer?

Yes. If you hold the investment for more than one year, the gain becomes long-term and is taxed at 0%, 15%, or 20% instead of your ordinary bracket rate. The one-year holding period is the key dividing line the IRS uses.

What if I sell multiple investments in the same year?

All short-term gains and losses are combined into a single net short-term amount. All long-term gains and losses are combined into a separate net long-term amount. You report both on Schedule D. If you have both short-term and long-term transactions, they're taxed at different rates.

Do I owe short-term capital gains tax if I haven't sold yet?

No. You only owe tax when you actually sell the investment and realize the gain. Unrealized gains — profits on investments you still own — are not taxed until you sell.