Tax Guide Form 8868: When Your Non-Profit Has Its Hands Full IRS Form 8868 – Application for an Extension to File An Exempt Organization Return Coming last in PDFfiller’s review of extension forms, this post focuses on form 8868, used by ... Tax Guide Extensions for Tax-Exempt Organizations: Form 8868 This post was updated in April 2018 Sometimes running a non-profit organization can be hectic. If it looks like your 501(c) tax-exempt organization won’t be able to file its ...