Capital Gains Tax Calculator | Predictable Income

📋

Capital Gains Tax

Calculate the federal tax owed on short-term and long-term capital gains, adjusted for your income bracket.

The Sale

Purchase Price ($)

Sale Price ($)

Your Tax Situation

Filing Status

Taxable Income ($)

Federal Capital Gains Tax

—

Capital Gain

—

sale minus cost basis

Net After-Tax Proceeds

—

gain after federal tax

Short-Term vs Long-Term — What You Keep

Holding this asset for over a year saves you — in federal tax compared to selling it short-term. The long-term rate kicks in at exactly 1 year + 1 day.

Capital Gains Tax Calculator

When you sell an investment for a profit, the IRS takes its share, but the exact amount depends on how long you held the asset, your filing status, and your total taxable income. Our Capital Gains Tax Calculator uses current 2025 federal tax brackets for all four filing statuses and correctly stacks your gain on top of your ordinary income so the bracket math is accurate. Enter your purchase price, sale price, holding period, filing status, and taxable income, and the calculator returns your exact federal tax owed, your effective tax rate on the gain, and your net after-tax proceeds. A side-by-side chart shows the difference between selling short term versus long term, making it obvious why the one year and one day holding period is one of the most valuable deadlines in personal finance. Waiting a single extra day can save you thousands.