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 Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction. Best-Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next. Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter.