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 Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit. 3 Estate Challenges for Blended Families This article will help your clients with blended families think and prepare their estate strategy.