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 Do You Owe The AMT? If you want to avoid potential surprises at tax time, it may make sense to know where you stand when it comes to the AMT. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. How to Make the Tax Code Work for You When you take the time to learn more about how it works, you may be able to put the tax code to work for you.