Estimate federal capital gains tax on investment sales
What is this? This calculator estimates how much tax you'll owe when you sell an investment — stocks, real estate, or crypto. It handles short-term gains (held <1 year, taxed as income) vs. long-term gains (held >1 year, lower tax rates), and shows the effect of tax-loss harvesting.
Who it's for: Investors selling stocks or property, people considering tax-loss harvesting to offset gains, or anyone trying to estimate taxes before making an investment exit.
Sale Details
Your Income (for bracket determination)
Tax-Loss Harvesting (offset gains with losses)
NIIT note: If MAGI + net investment income exceeds $200K (single) or $250K (married), you owe 3.8% NIIT on the lesser of net investment income or the excess over threshold.