I have been playing with the Federal Tax calculator
to check how much a difference is between 110k and 120k and the tax amount varies wildly.
For 110k is shows 10628 while for 120k it's 12780, an increase of 20%
Attached are the details.
Is that right? I have been trying to find out the tables with the Zug tax rates and how they progressively increase but can't locate it.