Portugal's Budget Law for 2018 was submitted to parliament on 13 October 2017. The main tax-related measures include: An extension of capital gains taxation rules so that gains from the transfer of foreign shares or similar rights may be taxed in Portugal if more than 50% of their value is derived from immovable property situated in Portugal; New rules regarding foreign permanent establishments that require taxpayers to provide justification for any losses, expenses and negative capital variations; A change in the reinvestment incentive for SMEs so that up to 10% retained earnings may be deducted if reinvested within three years...