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 How Income Taxes Work A quick look at how federal income taxes work. 6 Strategies to Help You Prepare for Living on Retirement Explore financial strategies that may help you prepare for living on a fixed budget during retirement on My Retirement Walk. Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers.