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 Life and Death of a Twenty Dollar Bill How long does a $20 bill last? Father Knows Best Financial behaviors you learned from dad may be influencing your own confidence in managing money. Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last.