To create a 501(c)(3) taxexempt organization, first you need to form a Massachusetts corporation, then you must apply for taxexempt status from the IRS. Massachusetts Nonprofit Compliance.Required annual filings. This article provides a stepbystep guide to form your new nonprofit and build a solid foundation for your organization's future. You must complete the Charity Registry form online. You will need at least one, but can have more than one. While it is possible to form a non-corporate, nonprofit organization- (and obtain federal 501(c) tax exemption), the vast majority of organizations choose. What are the annual filing requirements for nonprofits in Massachusetts? We've helped start hundreds of nonprofit organizations successfully.