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Calculate Capital Gains Tax on Investments

Calculate federal capital gains tax on stocks, crypto, and real estate. Short-term vs long-term rates by income.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Short-Term vs Long-Term Capital Gains

Short-term (held under 1 year): Taxed as ordinary income — 10% to 37% depending on your tax bracket. Long-term (held over 1 year): Preferential rates — 0%, 15%, or 20%. For most investors, long-term gains are taxed at 15%. The difference is enormous: a $15,000 gain taxed at 24% (short-term) = $3,600 in tax. The same gain taxed at 15% (long-term) = $2,250. Holding one day longer can save $1,350.

Strategies to Reduce Capital Gains Tax

Hold for 1+ year: The single most effective strategy. Tax-loss harvesting: Sell losing investments to offset gains. Use tax-advantaged accounts: Gains inside 401k/IRA are not taxed until withdrawal. Gift appreciated assets: Gifting stocks to family in lower brackets can reduce the tax rate. Qualified Opportunity Zones: Reinvesting gains in designated zones can defer and reduce capital gains tax.

⚡ CalcWolf Insight

The 0% long-term capital gains rate is one of the most powerful tax benefits available. Single filers with taxable income under $47,025 pay ZERO federal tax on long-term gains. A retired couple with $94,050 or less in taxable income can sell stocks completely tax-free. Strategic income management can save tens of thousands.

Frequently asked questions
How much tax do I pay on stock gains?
Long-term (held over 1 year): 0% if income under $47K (single), 15% for most investors ($47K-$519K), 20% for high earners. Short-term (under 1 year): your ordinary income tax rate (10-37%). Always try to hold investments at least 1 year and 1 day to qualify for long-term rates.
Can I offset gains with losses?
Yes — capital losses offset capital gains dollar-for-dollar. If you have $10,000 in gains and $6,000 in losses, you pay tax on only $4,000 net gain. If losses exceed gains, you can deduct up to $3,000/year against ordinary income, carrying forward the rest.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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