Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. 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 Retirement Traps to Avoid Beware of these traps that could upend your retirement. 401(k) Plans Are Not Just for Big Businesses Many small businesses are one person businesses. Conquering Retirement Challenges for Women Looking ahead can help you conquer these unique obstacles.