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 | Related Content Four Steps to Valuing an Estate Determining the value of your estate, or for someone who has passed away, can be a complex undertaking. Business Boosters: Tips for Building a Team Here are a few tips on how to recruit, hire and onboard employees who fit your culture and share your passion to succeed. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.