About Capital Gains Tax by State

We estimate the federal and state tax on a capital gain, so that you know roughly what a sale will cost before you make it.

The site is independent. We are not a broker, a bank or a tax preparer, and we sell no financial products. The figures come from the published 2026 rates, cited on the methodology page, and every federal figure is computed twice.

The figures are estimates, not tax or investment advice. A real return depends on all of your income, deductions and credits.