No fees are charged for holding an account with Saxo Bank Switzerland, unless the account has been inactive for a prolonged period of time, in which an inactivity fee applies.
For accounts with no trading activity during a period of 90 consecutive days an inactivity fee of 89 CHF or equivalent in the account currency will be charged.
General information regarding Saxo commissions and pricing can be found here:
https://www.home.saxo/en-ch/rates-and-conditions/pricing-plans/pricing-overview/