Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt. 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 Buying vs. Leasing a Car Whatever your relationship with your car, it may eventually come time for a new one. Familiarize yourself with your options. Choosing a Mortgage Selecting a mortgage isn't an easy process. Get a better understanding of how professionals make the right decisions. It Was the Best of Times, It Was the Worst of Times All about how missing the best market days (or the worst!) might affect your portfolio.