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 Question Thank you! Oops! Related Content 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? Put Your Child on the Path to a Stronger Financial Future Many parents consider financial goals to benefit their children at major milestones, whether it’s the appearance of a first.. Financial Fixes: The Hidden Costs of Home Ownership Six out of 10 millennials regret buying a home because they weren’t prepared for the hidden costs.