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 Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years. Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind. The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out.