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 Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process. Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years.