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 Navigating Retirement Pitfalls Why are they made again and again? Making sense of these errors in judgement. 9 Facts About Social Security There are things about Social Security that might surprise you. Bridging the Confidence Gap In the world of finance, the effects of the "confidence gap" can be especially apparent.