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 When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? Is a Variable Annuity Right for Me? Pundits go on and on about how “terrible” or “wonderful” annuities are, but they never talk about whether annuities are right. Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money.