Jokinen
Hello Jokinen,
In general, yes, there is such a deduction in Switzerland. And yes, you can try to deduct the cost.
However, in your particular case it is highly likely that the tax office will cancel the deduction. The reason is that in many cantons (but for sure, I can speak only for Zurich), this deduction is accepted only if the employer cannot provide you a suitable workplace in the office.
If you stay at home and work from there only for your personal convenience and flexibility, you are not allowed to claim the home office deduction.
Whatever it be, I strongly recommend you to check the rules of your canton of residence. It is not unthinkable that the cantonal rules vary.
Best regards,
Aho