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 When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits. Caring for Aging Parents As our nation ages, many Americans are turning their attention to caring for aging parents. Safeguard Your Digital Estate If you died, what would happen to your email archives, social profiles and online accounts?