Long-Term Capital Gains Tax: Rates, Rules, and How to Qualify

Roughly 75% of taxpayers who owe long-term capital gains tax pay a rate of 15% or less. That's a fraction of what most people pay on their salary. The entire long-term capital gains system is designed to reward one behavior: patience.

Hold an investment for more than one year, and the IRS gives you access to rates that top out at 20%. Sell one day too early, and your profit gets taxed like wages, at rates reaching 37%. The gap between these two outcomes can mean thousands of dollars on a single trade.

The quick version: Long-term capital gains apply to assets held longer than one year. Rates are 0%, 15%, or 20% based on income. Your ordinary income fills the lower brackets first, then gains stack on top.

What Makes a Gain "Long-Term"?

A capital gain is long-term when you hold the asset for more than one year before selling. Not exactly one year. More than one year.

Buy shares on March 15, 2025. The earliest you can sell and qualify for long-term treatment is March 16, 2026. Sell on March 15, 2026, and it's still short-term.

That single day matters.

This applies to everything the IRS considers a capital asset: stocks, bonds, mutual funds, ETFs, real estate, cryptocurrency, and even your boat if you sell it for a profit.

The exception: inherited assets. When you inherit property, you automatically qualify for long-term treatment regardless of how long you (or the deceased) held it. Inherit a house on Monday and sell it Friday, and any gain still qualifies for the lower rates. We cover the full mechanics in how capital gains work on inherited property.

2025 and 2026 Long-Term Capital Gains Brackets

Your rate depends on your total taxable income, not just the gain itself. Here's the full breakdown for both tax years.

2025 Tax Year (file in 2026)

2026 Tax Year (file in 2027)

Sources: IRS Revenue Procedure 2024-40 and Revenue Procedure 2025-32.

The thresholds increased about 2.8% from 2025 to 2026, keeping pace with inflation adjustments mandated by the One Big Beautiful Bill Act, which made the 2017 tax cut brackets permanent.

The "Stacking" Effect: Why Your Salary Matters

Here's the concept most people get wrong: your ordinary income fills the brackets first, and then your capital gains sit on top.

Two scenarios show why this matters.

Scenario 1: Marcus, 29, Single Filer (2026 Tax Year)

• Salary: $45,000
• Standard deduction: $16,100
• Taxable ordinary income: $28,900
• Long-term capital gains: $15,000
• Total taxable income: $43,900

Marcus's total income ($43,900) falls below the $49,450 threshold for the 0% bracket. Every dollar of his capital gain is taxed at 0%.

Tax on the $15,000 gain: $0.

Not a typo. Marcus pays nothing. Zero. This is the most underused tax advantage in the entire code for younger workers with moderate incomes.

Scenario 2: Same Marcus, But Bigger Gains

Now imagine Marcus sells more stock:

• Salary: $45,000
• Standard deduction: $16,100
• Taxable ordinary income: $28,900
• Long-term capital gains: $30,000
• Total taxable income: $58,900

The 0% bracket extends to $49,450. Marcus's ordinary income takes up $28,900 of that, leaving $20,550 of room.

• First $20,550 of his gains: taxed at 0%
• Remaining $9,450 of his gains: taxed at 15%

Tax on the $30,000 gain: $1,417.50

This stacking effect is why retirees with low ordinary income can often sell appreciated investments and pay nothing in federal capital gains tax. It's also why a big bonus year is the worst time to sell winners.

For a closer look at how this works across every filing status, see our detailed rate tables.

The Net Investment Income Tax (NIIT)

High earners don't stop at 20%. The NIIT adds 3.8% on investment income when your modified adjusted gross income exceeds $200,000 (single) or $250,000 (married filing jointly).

The NIIT applies to the lesser of your net investment income or the amount by which your MAGI exceeds the threshold. Those thresholds haven't budged since 2013, which means inflation has been quietly dragging more taxpayers into NIIT territory every year.

For a married couple with $400,000 in income and a $50,000 long-term gain:

• MAGI exceeds the $250,000 threshold by $150,000
• Net investment income: $50,000
• NIIT applies to the lesser amount: $50,000
• NIIT: $50,000 × 3.8% = $1,900
• Combined rate on the gain: 15% + 3.8% = 18.8%

At the very top, the effective maximum federal rate on long-term capital gains is 23.8% (20% + 3.8% NIIT).

Special Long-Term Rates You Should Know

The standard 0/15/20 structure covers most investments. But some assets play by different rules:

Collectibles are the biggest surprise for most people. That gold bar you held for three years? Capped at 28%, not 20%. Your vintage Rolex collection? Same rule.

Worked Example: The Real-World Tax Bill

Profile: Elena, 47, married filing jointly (2025 tax year)

• Combined household salary: $160,000
• Standard deduction: $30,000
• Taxable ordinary income: $130,000
• Sold Vanguard VTI shares held for 4 years
• Cost basis: $30,000
• Sale price: $55,000
• Long-term capital gain: $25,000

Step 1: Determine the capital gains bracket. The 15% bracket for married-joint filers runs from $96,701 to $600,050. Elena's ordinary income of $130,000 is well within this range. Her capital gains stack on top, bringing total taxable income to $155,000, still firmly in the 15% bracket.

Step 2: Calculate federal tax on the gain. $25,000 × 15% = $3,750

Step 3: Check for NIIT. Combined MAGI: $190,000. Threshold for married joint: $250,000. Below the threshold, so NIIT = $0.

Step 4: Consider state taxes. Elena lives in Georgia, where capital gains are taxed as ordinary income at a flat 5.19%. State tax on the gain: $25,000 × 5.19% = $1,297.50

Total tax on the $25,000 gain: $5,047.50 (effective rate: ~20.2%)

If Elena had sold after just 9 months, the same twenty-five thousand dollars would have been taxed at her 22% marginal ordinary income rate federally, plus Georgia state tax. Federal alone would have been $5,500 instead of $3,750. Holding the extra three months saved her $1,750 in federal tax.

That might not sound life-changing on a single sale. But do it repeatedly over a 30-year investing career and the compounding effect of those savings is substantial.

Your Next Move

1. Check your brokerage's "tax lots." Fidelity, Schwab, and Vanguard all show your purchase dates and unrealized gains by holding period. Identify any positions approaching the one-year mark.
2. Estimate your taxable income. Use our tax bracket calculator to see where your capital gains will land in the bracket structure.
3. Consider your timing. If you're planning to sell, think about whether this year or next year gives you a lower income. Job transition? Early retirement? Those windows are golden.
4. Don't forget the state. Federal is only part of the equation. Check how your state taxes investment profits before making large sales.
5. If you're nearing retirement, the 0% bracket becomes accessible. A Roth conversion strategy combined with strategic gain harvesting can dramatically reduce lifetime taxes.

References

1. Internal Revenue Service. (2026). Topic No. 409 Capital Gains and Losses. IRS.gov. https://www.irs.gov/taxtopics/tc409
2. Internal Revenue Service. (2024). Revenue Procedure 2024-40. IRS.gov. https://www.irs.gov/pub/irs-drop/rp-24-40.pdf
3. Internal Revenue Service. (2025). Revenue Procedure 2025-32. IRS.gov. https://www.irs.gov/pub/irs-drop/rp-25-32.pdf
4. Internal Revenue Service. (2025). Questions and Answers on the Net Investment Income Tax. IRS.gov. https://www.irs.gov/individuals/net-investment-income-tax
5. Georgia Department of Revenue. (2025). Important Tax Updates. Georgia.gov. https://dor.georgia.gov/taxes/important-tax-updates