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 The Sequence of Returns A look at how variable rates of return impact investors over time. Estate Strategies of the Rich and Famous The examples of famous celebrities underline the need for a clear estate strategy. When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits.