Capital Gains Tax Calculator (2026)

Estimate your federal tax on investment profits for the 2026 tax year. Compare preferential long-term rates (0%, 15%, 20%) with short-term ordinary income rates.

🏛️ 2026 IRS Capital Gains Thresholds 🛡️ 100% Client-Side Privacy ⚡ Includes Net Investment Income Tax (NIIT)

Investment Capital Gains Calculator

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Statutory Regulatory Reference & Editorial Verification

Capital gains brackets and thresholds are modeled under Internal Revenue Code (IRC) § 1(h) and the 2026 statutory inflation adjustments in IRS Revenue Procedure 2025-38. Calculations execute 100% locally in your web browser. Reviewed and updated by the TaxCalcHub Editorial Team for 2026.

Official 2026 Long-Term Capital Gains Tax Brackets

Unlike ordinary income, long-term capital gains benefit from three favorable tax brackets (0%, 15%, and 20%):

Filing Status 0% Tax Rate (Tax-Free) 15% Tax Rate 20% Maximum Rate
Single Up to $48,350 $48,351 to $533,400 Over $533,400
Married Filing Jointly Up to $96,700 $96,701 to $600,050 Over $600,050
Head of Household Up to $64,750 $64,751 to $566,700 Over $566,700
Married Filing Separately Up to $48,350 $48,351 to $300,025 Over $300,025

Essential Guide to U.S. Capital Gains Tax

1. Short-Term vs. Long-Term Capital Gains

The duration you own an investment before selling determines how heavily it is taxed:

2. The 0% Tax-Free Bracket Opportunity

Many taxpayers are surprised to learn that long-term capital gains can be completely federal tax-free. If your total taxable income (including wages and gains) remains under $48,350 as a single filer ($96,700 for married couples), your federal capital gains tax rate is exactly 0%.

3. Net Investment Income Tax (NIIT 3.8%)

High-earning investors may be subject to an additional 3.8% Net Investment Income Tax under IRC § 1411 if Modified Adjusted Gross Income (MAGI) exceeds:

4. Tax-Loss Harvesting

If you have losing investments, you can sell them to offset capital gains dollar-for-dollar. If net losses exceed gains, you can deduct up to $3,000 against ordinary income each year and carry forward remaining losses indefinitely.