Tax Treaty Residence of Entities provides a thorough examination of the treaty rules on the residence of entities, Article 4 of the OECD Model Convention (OECD MC). Changes to the OECD MC have raised questions about the concept of residence as it applies to entities. It is of great importance to be able to determine who or what is considered resident within the meaning of tax treaty provisions. However, the concept of residence has never been fundamentally adjusted to current circumstances in which technological developments make it possible for corporations to explore the wide gap between their actual business operations and the legalistic requirements for corporate residence. In this study of the OECD MC the basis for most tax treaties the author develops a clear understanding of the content of the residence concept as regards entities and proposes solutions to current problems, finishing with his own thoroughgoing definition.