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. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions. Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement. The Long Run: Women and Retirement For women, retirement strategy is a long race. It’s helpful to know the route.