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 Prevent a Rift: Money Tips for Newlyweds Couples may be able to head off many of the problems in a marriage that money can cause. What Is My Current Cash Flow? Assess whether you are running “in the black” or “in the red” each month. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit.