This handy comprehensive checklist to help nonprofit 501(c)(3) organizations stay up-to-date with annual filing requirements. Search organizations.Annual filing and forms. The annual meeting serves multiple purposes, including the board of director elections, evaluating and assessing progress towards achieving its mission. The CT-1 Form and Instructions are available online. The corporation's articles of incorporation and bylaws should be included in the initial filing. Find out the basics of holding an annual meeting for your nonprofit. 501(c)(3) nonprofits apply using Form 1023 or Form 1023-EZ. What is the purpose of an annual meeting for a nonprofit? Annual meetings are typically required under an organization's governing documents.