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 Protection Against Uninsured Drivers You’re hit by an uninsured driver. Now what? Are you protected against financial losses? 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? How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits.