Capital Gains Tax Calculator: Stocks, Real Estate, and Investments

Understanding your capital gains tax liability before selling an investment lets you time your exits strategically and keep more of your profits. Our capital gains calculator computes the exact tax on your realized gains based on your cost basis, holding period, filing status, and total income level.

Tax-loss harvesting allows you to offset gains by selling losing positions, potentially saving thousands in taxes each year. The calculator helps you model how realized losses reduce your taxable gains, with up to 3,000 dollars in excess losses deductible against ordinary income annually.

Real estate capital gains above the 250,000 dollar exclusion for single filers or 500,000 for married couples are subject to capital gains tax plus the 3.8 percent net investment income tax for high earners. Use our estate tax calculator for inheritance planning and our investment calculator to project future growth after taxes.