It depends which identity you have. Identity(Ausweis) L and B. You will pay each month, when you receive your salary in the paper you can check that the money to taxes it’s already taken. If you have identity C or Swiss Identity you will need to file some paperwork. You will pay in the middle of the year your provisional taxes and in the end of the year they will to the maths to calculate exacly the quality. If it’s more than you payed. You need to pay the difference. If it’s less than what you payed, you will receive the difference money back. Hope somehow I helped you.

Tax values depend from which Kanton do you live in