TAX
Short Term Capital Gains Calculator - Assets Held Less Than One Year
By Worldtickers ·
Calculate the tax on short-term capital gains from stocks, crypto, and other assets held for one year or less at your ordinary income tax rate.
This short term capital gains tool focuses on calculating the tax on short-term capital gains from stocks, crypto, and other assets held for one year or less at your ordinary income tax rate. Use it to model crypto entries and exits with realistic buy prices, sell prices, fees, taxes, and position sizes, then compare net profit, break-even levels, and downside scenarios before or after a trade.
Calculator
Short-Term Capital Gains Calculator
Calculate tax on short-term gains (assets held less than 1 year).
What Are Short-Term Gains?
Short-term capital gains are profits from selling an asset that you held for one year or less. Unlike long-term gains, which benefit from preferential tax rates of 0%, 15%, or 20%, short-term gains are taxed as ordinary income at your regular tax rate. This means they can be taxed at rates up to 37%, making the holding period one of the most important factors in investment tax planning.
The holding period starts the day after you purchase the asset and ends on the day you sell it. Selling exactly one year after purchase qualifies for long-term treatment. Selling one day earlier results in short-term treatment. This seemingly small difference can have a significant impact on your tax bill. For example, a $20,000 gain taxed at the 24% short-term rate costs $4,800, while the same gain at the 15% long-term rate costs only $3,000, a savings of $1,800 from waiting one additional day.
Short-term gains are common among active traders, day traders, and investors who rebalance frequently. They are also common in cryptocurrency, where the high volatility and 24/7 trading environment encourage frequent buying and selling. If you trade crypto, stocks, or other assets frequently, understanding the short- term tax impact is essential for accurate tax planning.
How to Use This Calculator
Enter the purchase price, sale price, your filing status, and total taxable income. The calculator determines your short-term capital gain, applies your marginal tax rate, and shows the federal and estimated total tax on the gain.
Cost Basis and Sale Price
Cost basis is what you paid for the asset including commissions. Sale price is the net amount received. The difference is your short-term capital gain. If you have multiple purchases of the same asset, use FIFO, LIFO, or specific identification to determine which cost basis applies to the sale.
Your Marginal Tax Rate
Your marginal tax rate is the rate on your highest dollar of income. Short-term gains are stacked on top of your ordinary income, so they are taxed at whatever bracket your income reaches. If your salary alone puts you in the 22% bracket, short-term gains will be taxed at 22% (or higher if the gain pushes you into the 24% bracket). Enter your total taxable income to determine the correct rate.
Formula
Short-term capital gain: Gain = Sale Price − Cost Basis, where the holding period is one year or less.
Tax on the gain: Tax = Gain × Marginal Income Tax Rate. The gain is added to your ordinary income and taxed at the bracket rate that applies to the top portion of your income.
Including state and NIIT: Total Tax = Federal Tax + (Gain × State Rate) + (Gain × 3.8% NIIT if applicable). This gives you the full picture of your short-term capital gains tax burden.
Examples
Example 1: Stock Sale at 22% Bracket
You bought 200 shares at $40 each ($8,000) and sold after 6 months at $55 each ($11,000). Short-term gain is $3,000. Your taxable income from salary is $55,000, putting you in the 22% bracket. The $3,000 gain is taxed at 22%, resulting in $660 in federal tax. Adding 5% state tax ($150) gives a total of $810. If you had waited 6 more months for long-term treatment, the tax would be $450 at 15%, a savings of $360.
Example 2: Large Gain Pushing Into Higher Bracket
Your salary is $185,000 (single filer), placing you near the top of the 24% bracket. You sell a stock position for a $30,000 short-term gain. The first $6,950 of the gain is taxed at 24%, and the remaining $23,050 is taxed at 32% (the next bracket). Federal tax is approximately $9,063. This example shows how large short-term gains can trigger a higher marginal rate, making the effective rate on the gain higher than your starting bracket.
Example 3: Multiple Short-Term Sales
You make four short-term stock trades during the year: gains of $2,000, $5,000, and $3,000, and a loss of $1,500. Net short-term gain is $8,500. With $70,000 salary income, you are in the 22% bracket. Tax on the gain is $8,500 × 22% = $1,870. The loss from the fourth trade reduced your taxable gain from $10,000 to $8,500, saving you $330 in tax. This demonstrates the value of harvesting losses even within short-term holdings.
Tips
Wait for the One-Year Mark When Possible
The most effective way to reduce capital gains tax is holding assets for more than one year. The difference between the 24% short-term rate and the 15% long-term rate can save you thousands on a single transaction. If you are considering selling an appreciated position, check whether you are close to the one-year threshold. Even waiting a few weeks can make a significant difference in your tax bill.
Harvest Short-Term Losses
If you have short-term gains, look for short-term losses to offset them. Short-term losses first offset short-term gains (dollar for dollar), which is the most tax-efficient use of a loss. If losses exceed gains, up to $3,000 can be deducted against ordinary income per year. In volatile markets, tax-loss harvesting opportunities arise frequently, so monitor your positions throughout the year.
Use Tax-Advantaged Accounts for Active Trading
If you are an active trader generating frequent short-term gains, consider doing your active trading within a Roth IRA or traditional IRA. Gains within these accounts are not subject to capital gains tax (Roth) or are deferred until withdrawal (traditional). This eliminates the short-term vs long-term distinction entirely for those holdings.
Plan Sales Around Your Income
If possible, time the realization of short-term gains for years when your income is lower. This could be a sabbatical year, a year between jobs, or a year with significant business losses. Lower income means a lower marginal rate on the gains. Conversely, avoid realizing large short-term gains in years when you already have high ordinary income.
FAQ
What counts as a short-term capital gain?
A short-term capital gain is the profit from selling an asset that you held for one year or less. The holding period starts the day after you purchase the asset and ends on the day you sell it. If you bought stock on January 15, 2026, and sold it on January 15, 2027, that is exactly one year, so the gain is long-term. Selling one day earlier (January 14, 2027) makes it short-term.
What is the short-term capital gains tax rate?
Short-term capital gains are taxed as ordinary income, meaning they are added to your wages and other income and taxed at your marginal tax rate. For 2026, this means rates from 10% to 37% depending on your total taxable income. There is no separate short-term capital gains rate, the gain simply flows through to your income tax return as ordinary income.
How is this different from long-term capital gains?
Long-term capital gains (assets held more than one year) qualify for preferential rates of 0%, 15%, or 20%. Short-term gains are taxed at ordinary income rates of 10% to 37%. The difference can be substantial. For example, a $10,000 gain for someone in the 24% bracket costs $2,400 in short-term tax but only $1,500 in long-term tax (at 15%). Holding for one year and one day can save hundreds or thousands.
Does the short-term rate apply to cryptocurrency?
Yes. The IRS treats cryptocurrency as property, and the same capital gains rules apply. If you buy Bitcoin and sell it within one year, the gain is short-term and taxed at your ordinary income rate. Crypto is particularly susceptible to short-term treatment because many traders buy and sell frequently. To qualify for long-term rates on crypto, you must hold the asset for more than one year.
Can I reduce short-term capital gains tax?
You can reduce short-term gains through tax-loss harvesting (selling losing positions to offset gains), contributing to pre-tax retirement accounts (which lowers your AGI and potentially your bracket), and timing the sale of gains to a year when your income is lower. Additionally, the standard deduction and itemized deductions reduce taxable income, which can indirectly lower the rate on short-term gains.
Do short-term gains affect my tax bracket?
Yes. Short-term capital gains are added to your ordinary income, which can push you into a higher tax bracket. If your salary puts you near the top of the 22% bracket and you realize a large short-term gain, part of that gain may be taxed at 24% or higher. This is why investors nearing a bracket threshold often prefer to hold appreciated positions past the one-year mark.
How do short-term gains interact with the Net Investment Income Tax?
Short-term capital gains are included in net investment income and can trigger the 3.8% NIIT if your modified adjusted gross income exceeds $200,000 (single) or $250,000 (married filing jointly). This means high earners may pay up to 40.8% on short-term gains (37% top bracket plus 3.8% NIIT). Long-term gains also face the NIIT but at lower base rates, making the difference even more pronounced.
Is there any way to convert short-term gains to long-term?
There is no direct conversion mechanism. However, you can manage your gain timing: if you have a position approaching the one-year mark, waiting even a few days can convert it from short-term to long-term, saving significant tax. Some investors also use tax-advantaged accounts to hold appreciated positions. Be aware of the wash sale rule if selling and repurchasing to reset your basis, you must wait at least 31 days.