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. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Are You Making the Most of Your 401(k)? In this ebook, we outline your 401(k) choices and explore critical mistakes to avoid. Download it today First Name Last Name Email Address Thank you! Oops! Related Content Net Unrealized Appreciation (NUA) Explained Have you considered the special tax treatment on company stock held in a 401(k) plan? Should You Borrow from Your 401(k)? Does it make sense to borrow from my 401(k) to pay off debt or to make a major purchase? Filing Final Tax Returns for the Deceased The federal government requires deceased individuals to file a final income tax return.