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 Self-Employed Retirement Plans Estimate the maximum contribution amount for a Self-Employed 401(k), SIMPLE IRA, or SEP. Financial Aid for Students 101 Help your college-bound child explore scholarships, grants, and more with this article on paying for higher education. The Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer.