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 Question Thank you! Oops! Related Content Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Insurance Needs Assessment: When You're Newly Married Marriage changes everything, including your insurance needs. 3 Estate Challenges for Blended Families This article will help your clients with blended families think and prepare their estate strategy.