Income taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income taxes [Abstract]

Income tax expense reconciled to loss

The Group’s income tax expense for each year can be reconciled to loss before tax as follows:

	For the Years Ended December 31,
In CHF thousands	2021			2020			2019
Income/(loss) before income tax		(72,993	)		(61,921	)		45,442
Tax (benefit)/expense calculated at the domestic rates applicable in the respective countries		(9,930	)		(8,441	)		6,194
(Income not subject to tax)/expenses not deductible for tax purposes		(375	)		462			(62	)
Effect of unused tax losses and tax offsets not recognized as deferred tax assets		10,308			7,979			(6,132	)
Effective income tax rate (benefit)/expense		3			—			—

Unrecognized deductible temporary differences, unused tax losses and unused tax credits

The below table details the total unrecognized deductible temporary differences, unused tax losses and unused tax credits:

	As of December 31,
In CHF thousands	2021		2020		2019
Unrecognized deductible temporary differences, unused tax losses and unused tax credits
Deductible temporary differences, unused tax losses and unused tax credits for which no deferred tax assets have been recognized are attributable to the following:
Tax losses		197,152		121,948		64,125
Deductible temporary differences related to:
Right-of-use assets and lease liabilities, net		—		—		—
Retirement benefit plan		7,098		7,464		7,485
Total		204,250		129,412		71,610

Tax losses carry forwards and respective expiry dates

The following table details the tax losses carry forwards of the Company and their respective expiry dates:

	As of December 31,
In CHF thousands	2021		2020		2019
Tax losses split by expiry date:
December 31, 2024		15,231		15,231		15,231
December 31, 2025		48,894		48,894		48,894
December 31, 2026		—		—		—
December 31, 2027		57,824		57,824		—
December 31, 2028		75,204		—		—
Total unrecorded tax loss carryforwards		197,153		121,949		64,125