This article deals with the International Business Centre of Madeira (Centro Internacional de Negécios da Madeira, IBCM) that can, broadly, be defined as a preferential tax regime on Portuguese territory. In this respect the author deals with the various zones in the IBCM (industrial free trade zone, financial services centre, international services centre, international shipping register), the tax incentives available and, finally, considers, critically, the current IBCM and its future.