Recent revelations on the use of fiduciary services raise concerns regarding their use for tax and creditor avoidance. Yet given the secrecy shrouding much of the fiduciary industry, we do not know which fiduciary services are used for such purposes, and to what extent. Shining a light on a particularly obscure part of the industry, this Article presents and analyzes the results of the first-ever global survey of professional service providers to private donative trusts, having obtained 409 usable responses from professionals in 82 jurisdictions, amplified by twenty-five interviews conducted with professional trust service providers in five jurisdictions. I report new data on four controversial features of current trust practice: (1) perpet...