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 Prevent a Rift: Money Tips for Newlyweds Couples may be able to head off many of the problems in a marriage that money can cause. What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money. A Brief History of Estate Taxes Federal estate taxes have long since been a lucrative source of funding for the federal government.