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 Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt. A Brief History of Estate Taxes Federal estate taxes have long since been a lucrative source of funding for the federal government. Bi-Weekly Payments This calculator estimates the savings from paying a mortgage bi-weekly instead of monthly.