Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. Infographic: Women Are Financially Savvy Women Are Financially Savvy. Yet, there are still unique challenges working against women in retirement.