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 Managing Money as a Couple Keys to preparing to grow wealthy together. FIRE Retirement This short, informative article teaches the basics of the FIRE movement. Tax Freedom Day Assess how many days you'll work to pay your federal tax liability.