Capital gains tax guide for 2025-2026
Capital gains tax depends on your holding period, taxable income, and any net investment income tax. This guide explains short- versus long-term rates, how to estimate your gain, and which calculators help you compare selling now versus waiting.
Short vs long-term gains
- Short-term gains are taxed at ordinary income rates.
- Long-term gains use preferential rates based on taxable income.
Estimate your gain
- Use sale price minus cost basis and fees to estimate gain.
- Include any capital loss carryovers if applicable.
Reduce the tax impact
Timing and loss harvesting can lower your taxable gains.
- Compare selling now versus holding for long-term rates.
- Offset gains with realized losses while avoiding wash sales.
Related calculators
Capital gains tax calculator
Estimate tax on short- or long-term gains.
Sell now vs wait simulator
Compare timing scenarios for capital gains.
Tax-loss harvesting helper
Plan loss harvesting to offset gains.
Wash sale checker (simple)
Avoid disallowed loss deductions.
Dividend tax estimator
Estimate taxes on dividend income.
FAQ
Do I owe capital gains tax in every state?
Many states tax capital gains, but rates and exemptions vary by state.
Updated 2026-01-20. TaxGuide Pro provides educational tax guidance, not legal advice.