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 Acres of Diamonds In life it often happens that the answers to our most pressing questions are right in our own backyards. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit.