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 The Lowdown on Those Free Credit Scores What’s the deal with your yearly free credit report? Test Your Estate Strategy Knowledge Estate management can help ensure that your assets are transferred according to your wishes while managing tax issues. 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose?