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 Gap Insurance for Leased Cars If you’re thinking of leasing a new car, then you shouldn’t forget about gap insurance. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. Countering Counterfeit Currency Combating counterfeiting remains core to preserving the integrity of the nation’s money.