Finally I got a C permit and stopped paying Quellensteuer. Instead, the Zurich tax office sent me a few invoices to allow me to pay the taxes myself.
I got an estimated bill of X CHF (I know I will have to pay a bit more, because I will have earned more this year than last year) and three pay slips:
1 with the full amount due end of September
2 with the amount split in two parts, one due end of September and the other one due end of December
Now I wonder, what would the mustachian people of this forum do in this case? Pay everything (and then some) now? Or pay the minimum required now and the rest at the end of the year (after the bonus will have arrived) such that I can keep investing more right now?
I tend towards the second option. Any drawbacks that I am not thinking about?
Overpaying taxes is not as good as people tell me it used to be, but it’s still a 0.5% interest rate, so much better than what my bank pays me for keeping my cash. Do you overpay? By how much?