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 Medicare At 65+ 65 or older? It may be time to enroll in Medicare. Read to learn if you’re eligible. How the Federal Reserve Works Each day, the Fed is behind the scenes supporting the economy and providing services to the U.S. financial system. Best-Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next.