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. To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name. 9 Facts About Social Security There are things about Social Security that might surprise you.