Examining the 990: An Informative Series on Completing the Form In order to justify their tax-exempt status, every year non-profit organizations must file a 990 form with the IRS. Due to popular demand, The Chronicle has released a series of articles to help readers come away with a better understanding of the form, section-by-section, including how to fill it out, and why it’s so important. Organizations will get valuable information on topics including: Outlining their accomplishments Reporting on contributions Avoiding common missteps Other insider tips