%D 2015 %L eprints2735 %X This paper determines ownership and leverage of two units facing a tax- bankruptcy trade-o?. Connected units have higher leverage and lower tax burden, because of internal support through both bailouts and corporate dividends. Owner- ship adjusts to additional tax provisions. A hierarchical group with a wholly-owned subsidiary results from Thin Capitalization rules. The presence of corporate divi- dend taxes generates horizontal groups, or a Special Purpose Vehicle, or a private equity fund. Combinations of tax provisions contain tax savings, debt and default in connected units. No bailout provisions, such as the Volcker rule, succeed in reducing leverage and default. %A Giovanna Nicodano %A Luca Regis %K JEL Classification Codes: G32, H25, H32, L22 - Keywords: Ownership structure, Capital structure, Dividend taxes, Thin Capitalization, Groups, Securitization, Private equity. %N 7 %T Ownership, Taxes and Default %I IMT Institute for Advanced Studies Lucca