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 Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them. Retiring the 4% Rule A portfolio created with your long-term objectives in mind is crucial as you pursue your dream retirement. Investment Challenges of the Affluent Investor Affluent investors face unique challenges when putting together an investment strategy. Make sure you keep these in mind.