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 Question Thank you! Oops! Related Content Mortgages in Retirement Explore the benefits and drawbacks to paying off your mortgage prior to retirement with this article. How to Conquer the World - 5 Financial Strategies for Savvy Learn more about women taking control of their finances with this infographic. When Do You Need a Will? When do you need a will? The answer is easy: Right Now.