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 Critical Estate Documents Sound estate management includes creating financial and healthcare documents. Here's an inside look. Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. Why do Renters Have to Save More? How much more would retirement cost if you owned your home rather than rented? It could actually be several times less.