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 Systematic Withdrawals in Retirement Taking regular, periodic withdrawals during retirement can be quite problematic. 9 Facts About Retirement Regardless of how you approach retirement, there are some things about it that might surprise you. The Cycle of Investing Understanding the cycle of investing may help you avoid easy pitfalls.