You may have heard the terms “tax exempt,” “nonprofit” or “not-for-profit” used interchangeably to describe organizations that work for the public good. While either term could describe organizations operating under a range of exemptions in the IRS tax code and neither return profits to individual owners or shareholders in the way that for-profit organizations do, they differ in several important ways. In this article, we’ll start by defining nonprofit vs. not-for-profit organizations and explaining the major differences between them.