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 Should I Buy or Lease an Auto? This calculator compares the financial impact of leasing versus buying an automobile. Saving on Subscription Service Costs There are ways to improve your physical fitness without denting your fiscal fitness. 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.