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 Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Retirement Traps to Avoid Beware of these traps that could upend your retirement. Financial Aid for Students 101 Help your college-bound child explore scholarships, grants, and more with this article on paying for higher education.