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 Caring for Aging Parents As our nation ages, many Americans are turning their attention to caring for aging parents. How Retirement Spending Changes With Time It can be difficult for clients to imagine how much they’ll spend in retirement. This short, insightful article is useful. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.