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 Social Security: By the Numbers Here are five facts about Social Security that might surprise you. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. How to Conquer the World - 5 Financial Strategies for Savvy Learn more about women taking control of their finances with this infographic.