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 Question Thank you! Oops! Related Content Three Key Questions to Answer Before Taking Social Security When to start? Should I continue to work? How can I maximize my benefit? RE: Retirement How does your ideal retirement differ from reality, and what can we do to better align the two? All Muni Bonds Are Not Created Equal Gaining a better understanding of municipal bonds makes more sense than ever.