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 How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. Diversification, Patience, and Consistency Three important factors when it comes to your financial life.