On 10 February 2019, the Basel-Stadt electorate voted by a large majority of 78.8% to adopt the "Basel compromise on tax proposal 17". The canton is proactively implementing the harmonization provisions of the Federal Act on Tax Reform and AHV Financing (TRAF).
On 19 May 2019, the Swiss public will vote on the Federal Act on Tax Reform and AHV Financing (TRAF). By 17 January 2019, various referendum committees have submitted more than the necessary 50,000 signatures against the law.
On 17 October 2018, the Geneva State Council presented its final cantonal project for the implementation of the Federal Act on Tax Reform and AVS Financing (TRAF). It introduces minor changes compared to the previous project and leads to a massive decrease of the corporate income tax rate to 13.79%.