Explain the difference between a 990-N, 990-EZ and full 990 return; remember that a 990-N is for organizations with less than $50,000 in gross annual receipts , the 990-EZ is for over $50,000 and less than $200,000 in gross receipts and the 990-Full is for over $200,000 in gross receipts. Learn how to file a 990N e-Postcard return. Identify common errors when submitting a 990-N e-Postcard. Identify information needed to complete a 990-EZ return.