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 Five Most Overlooked Tax Deductions Five overlooked tax deductions to help manage your tax bill. Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference? Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last.