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 Net Unrealized Appreciation (NUA) Explained Have you considered the special tax treatment on company stock held in a 401(k) plan? A Decision Not Made Is Still a Decision Investors who put off important investment decisions may face potential consequence to their future financial security. The Cycle of Investing Understanding the cycle of investing may help you avoid easy pitfalls.