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 Pay Yourself First It sounds simple, but paying yourself first can really pay off. The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice. Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more.