Of course it's quite early to get deep into this topic (still got 20 years to go before retirement!), anyways I'd like to understand a bit more about it already in advance.

Now I got a bit less than CHF 50'000.- transferred to finpension into portfolio #1 - of course after just a few days the capital passed the 50k threshold. And this is a value I had in mind, being some sort of limit to keep in mind. Practically, I've been told and I've read about keeping not more than 50k on a 3A account, because the taxation has different percentages in 50k steps. I didn't find any evidence of this, thus this first question: is it true that taxation percentages change every 50k with regards to withdrawal of 3A accounts?

Second: if in the same year I withdraw a 3A account and a random amount from the second pillar, they would get summed for taxation purposes (thus potentially being past the 50k mark)?

I've asked my cantonal tax office how the taxation percentage would change in relation to the 3A withdrawals and they suggested I calculate it here.

I entered 50'000 (both "Bund" and "Kanton" - is this correct?) and with my situation (single, unmarried, no kids, no religion) it calculated CHF 1'640.45 total taxes (corresponding to 3,28%).

I then entered 100'000 and taxes went up to CHF 5'041.90 (corresponding to 5.04%).

With 80'000 the taxes are 4.45%... so this would actually prove that the taxation is progressive but not "in levels" (like stepping for each additional 50k).

Can anybody help me understand, if I'm getting it right?

Thanks!