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 How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit. All Muni Bonds Are Not Created Equal Gaining a better understanding of municipal bonds makes more sense than ever.