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 Message Thank you! Oops! Related Content The Mattress Dilemma: Where to Stash Your Savings? Americans are saving more these days.1 Especially millennials. We know why to save: For emergencies, for retirement, to afford big-ticket dreams like home ownership or opening a business. But how to save is another matter. Tax Efficiency in Retirement What role would taxes play in your investment decisions? More Than a Paycheck Understanding the basics of disability income protection.