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Capital Gains Tax Calculator
Calculate taxes on investment gains
$
$

Long-term

$

Before capital gains

Capital Gain

$5,000.00

Long-term

Tax Rate

15%

Long-term rate

Tax Amount

$750.00

Federal tax on gain

Net Proceeds

$14,250.00

After tax

Gain Calculation

Sale Price: $15,000.00

- Cost Basis: $10,000.00


= Capital Gain: $5,000.00

Long-Term (12+ months)

Preferential tax rates: 0%, 15%, or 20% based on income

Currently qualifies

Short-Term (<12 months)

Taxed as ordinary income at your marginal rate

Long-Term Capital Gains Brackets (2026) - Single

Tax RateIncome Range
0%$0.00 - $49,450.00
15%$49,450.00 - $545,500.00
20%$545,500.00 - and above

Tax-Saving Strategies

  • Hold investments for at least 12 months to qualify for long-term rates
  • Consider tax-loss harvesting to offset gains with losses
  • Use tax-advantaged accounts (401k, IRA) for frequent trading
  • Time sales to years with lower income when possible
  • High earners may owe an additional 3.8% Net Investment Income Tax

Calculator Assumptions

  • Tax year: 2026 federal capital gains brackets
  • Holding period: 12+ months qualifies for long-term rates; short-term taxed as ordinary income
  • NIIT: 3.8% Net Investment Income Tax not included (applies above $200k/$250k AGI)
  • State taxes: Not included; many states tax capital gains as ordinary income
  • Collectibles: Art, coins, and collectibles taxed at 28% max (not modeled)
  • Real estate: Depreciation recapture taxed at 25% (not modeled)