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 A Penny Saved is Two Pennies Earned Here are some simple and inexpensive energy-saving tips that may help you save money. Money that Buys Good Health is Never Ill Spent It's important to make sure your retirement strategy anticipates health-care expenses. Fixed or Variable Mortgage, Which Should You Pick? When selecting a mortgage, one of the most critical choices is between a fixed or variable interest-rate mortgage.