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 Retirement Accounts When You Change Your Job This video discusses issues related to your retirement accounts when you move on from your job. How Income Taxes Work A quick look at how federal income taxes work. The Financial Literacy Crisis Many Americans are operating their personal finances with only the barest minimum of knowledge.