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 The Financial Literacy Crisis Many Americans are operating their personal finances with only the barest minimum of knowledge. The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice. To Buy or Not to Buy The decision whether to buy or rent a home may have long-term implications.