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 Message Thank you! Oops! Related Content Financial Fixes: How to Survive Job Loss In the first few years after college, graduates tend to expect job turbulence. The Facts About Income Tax Millions faithfully file their 1040 forms each April. But some things about federal income taxes may surprise you. 8 Financial Lessons from the Big (and Little) Screen Financial lessons from movies and TV.