Subchapter C: unlimited # of owners, unlimited classes of stock, ownership easily transferred, double taxation

Subchapter S: single (pass through) taxation, limited to 100 owners, single class of stock, individuals and US citizens only, no retained earnings

LLC: single taxation, “corporate formalities” (annual meetings, minutes, bylaws) are not required, very flexible—can be co-op like

Non-profit: provides a legal entity separate from its members (good tool for handling funds), on dissolution assets return to community, 501 (c)3 can accept tax deductible donations