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 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. Impact of Taxes and Inflation Estimate the potential impact taxes and inflation can have on the purchasing power of an investment. Best-Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next.