An annual information return (Form 990) for tax-exempt organizations is due by this date for 2017. Form 990 summarizes revenue, expenses, and services rendered. Organizations exempt from federal income tax under section 501(c)(3) of the Internal Revenue Code must report additional information on Schedule A. Churches, conventions and associations of churches, “integrated auxiliaries” of churches, and church-affiliated elementary and secondary schools are among the organizations that are exempt from this reporting requirement. Organizations are not exempt from filing Form 990 if they have annual gross receipts of $25,000 or more.