Switzerland: Domestic Corporate Taxation
Filing Requirements and Payment of Tax
For federal tax purposes, the tax year is the company financial year whereas for cantonal and communal tax purposes the tax year is the calendar year. Although the cantonal basis of assessment differs amongst cantons (i.e. it is occasionally annual) assessment is generally on a bi-annual basis meaning that it is based on the average profits of the previous 2 calendar years so that, for instance, the corporate income tax payable to the canton for the period 1 January 2016 to 31 December 2017 is the average of profits for the like periods in 2014 and 2015.