Capital Gains Tax Calculator
Estimate the after-tax outcome of selling an investment. Compare short-term vs. long-term treatment, layer in state taxes, and see how much tax you might save by waiting for long-term rates.
Trade Details
Long-term (12+ months)
Tax Inputs
Actual tax treatment depends on your full income picture, filing status, and current law. This tool uses your simplified rates to model the trade.
Realized Outcome
Cost basis$10,000
Sale proceeds$16,000
Realized gain$6,000
Treatmentlong-term gain (15.0% federal)
Federal tax on gain-$900(15.0%)
State & local tax on gain-$300(5.0%)
Total tax owed on this sale-$1,200
Estimated After-Tax Proceeds
$14,800
Effective tax on your gain: 20.0% (7.5% of proceeds).
Quick Summary
- • This trade is currently treated as long-term gain based on 14.0 months of holding.
- • You're giving up roughly 20.0% of your gain to combined taxes on this sale.