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 Message Thank you! Oops! Related Content A Look at Whole Life Insurance Whole life insurance remains in force as long as you remain current with premiums. Here's how it works. Retirement Planning With Your Special Needs Child in Mind Having a special needs child adds another layer of complexity to retirement planning. A special needs trust may help. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.