Capital Gains Tax Calculator

2026

Calculate short-term and long-term capital gains tax on stocks, real estate, and other investments. Includes NIIT and state tax estimates.

$
$
Holding Period
$

Capital Gain

$100,000.00

Long-Term Rate

15%

Net Proceeds

$135,000.00

Federal Tax on Gains

$15,000.00

NIIT (3.8%)

$0.00

Total Tax on Gains

$15,000.00

Capital Gains Tax Breakdown

Sale Price$150,000.00
Cost Basis (Purchase Price)- $50,000.00
Capital Gain$100,000.00
Type: Long-TermPreferential rates
Ordinary Income$75,000.00
AGI (Income + Gains)$175,000.00
Federal Tax on Gains (15% marginal)$15,000.00
Total Tax$15,000.00
Effective Tax Rate on Gains15.00%
Net Proceeds After Tax$135,000.00

Use the Capital Gains Tax Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.