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 Women and Wealth: A Pivot Towards Retirement Tips and strategies for women approaching retirement to ensure a smooth transition. Deciding When to Take Social Security One of the most common questions people ask about Social Security is when they should start taking benefits. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.