Types of Organizations Exempt under Section 501(c)(4)
Internal Revenue Code section 501(c)(4) provides for the exemption of two very different types of organizations with their own distinct qualification requirements. They are:
Social welfare organizations: Civic leagues or organizations not organized for profit but operated exclusively for the promotion of social welfare, and
Local associations of employees, the membership of which is limited to the employees of designated person(s) in a particular municipality, and the net earnings of which are devoted exclusively for the promotion of social welfare.