1. 'C' corporation추후에 Exemption organization 신청함, can be revoked 2. 2 Test 1) Organization test 501(c): educational org, religious org, charitable org, social club, private foundation 2) Operational test: Not for profit 3. F990 F990: info return exception for small organizations(less than 50K) / religious - must disclose the id of all substantial contributors, in addition to the amou..