When I was applying for my student residence permit (even I am from the EU8 I also had to do that) migration office required me to prove that I will have 1800 chf per month during my stay. I had a choice either to have the amount of money equal to 1800xmonth of MS program on my account or I could provide the paper issued by my the bank my mother has an account in that she will transfer 1800 chf to my account every month on date x.
Notification of arrival and permit application are different things, but at least in Basel you are doing it at the same time (the same building).
Welcome to Switzerland (soon)